A NSK Linear Guides

Document Sample
A NSK Linear Guides Powered By Docstoc
					A-4 NSK Linear Guides™
                                                                                                                                                                                              RA Series
                                                                                                                                                                                                                Roller slide



                                                                                                                                                                                                   End cap

(1) Structure of NSK Linear Guides
By avoiding structural complexity, and by reducing the number of components, we not only enhanced the precision
of linear guides, but also are able to keep costs low. We have added NSK's patented unique structural feature to the                                                                                                                        Roller
original invention (Fig. 1). This contributes to higher precision and lower prices.                                                                                                                                                         Roller retaining piece          A
NSK linear guide consists of a rail and a ball or roller slide (Fig. 2). The balls or rollers roll on the race way surface,                                                                                                                                                 92
and are scooped up by the end caps attached to both ends of the ball or roller slide. Then, the balls or rollers go
through a passage made in the ball or roller slides and circulate back to the other end.                                                                                                      LA Series              Ball slide

(2) Characteristics of NSK Linear Guides
The use of a unique offset Gothic arch groove (Fig. 3) allows the ball type of NSK linear guides to satisfy groove                                                                             End cap
designs required for specific purposes.
This unique ball groove design facilitates precise measurement of the ball groove, thus enabling stable and highly
accurate production of the ball slides and the rails for random matching. (Fig. 4)
On top of that, we have developed and marketed the NSK Roller Guides, representing the culmination of NSK’s
analysis technology and tribology.
Such technologies ensure the feature of NSK linear guides outlined below.                                                             Fig. 1 • French Patent in 1932.                                                     Rail
                                                                                                                                             • Inventor : Gretsh (German)
1. High precision and quality                                                                                                                                                                 LH•LS Series
• High precision and quality come from our superb production and measuring technologies, strengthened
  by extensive experience in antifriction rotary bearings and ball screw production. Our quality assurance                    NSK added its patented technology to the
  extends to the smallest components.                                                                                         invention in Fig. 1, and improved the linear guide
                                                                                                                              structure and realized low cost design.
2. High reliability and durability
• Logical simplicity in shape, along with stable processing, maintains high precision and reliability.
• Super-clean materials, our advanced heat treatment and processing technologies increase product
  durability.
3. Abundant in type for any purpose
• Various series are available, and their slide models and size categories are standardized to satisfy any
  requirement. Our technology, polished by abundant experience in the use of special materials and                                                                                                      Fig. 2 Structure of NSK linear guides
  surface treatments, meets the customer’s most demanding expectations.                                                                                                           Offset
                                                                                                                                                                                                                                                    W
4. Development of random-matching parts for short delivery time                                                                                                                                                                                   Master roller
• The adoption of the Gothic arch groove which makes measuring easy, and a reliable quality control
  method has made random-matching of the rails and the ball or roller slides possible. The parts are
  stocked as standard products, thereby reducing delivery time.                                                               Clearance                                                                                              h

5. Patented static load carrying capacity (shock-resistance)
• When a super-high load (impact) is applied, our Gothic arch groove spreads the load to surfaces which                                                                                                                    Grinding wheel
                                                                                                                                                                  Non-differential slip          Grinding of datum surface                    Measuring
  usually do not come into contact in ball type. This increases shock resistance (Fig. 5).
                                                                                                                                                                                                     and ball grooves                       of ball grooves
6. Lineup of extremely high-load capacity series
• The LA series provides a top class high-load capacity for the ball linear guides through a unique load                      Fig. 3 Two contact point at offset Gothic arch groove
                                                                                                                                                                                                                                         Master roller
  carrying configuration with three ball recirculation circuits on the one side.                                                                                                                              Load ball                  (Larger diameter than load ball)

  By installing rollers that are the largest possible diameter and length, the NSK roller linear guides have
  realized the world highest load capacity, far superior to the roller linear guides of other companies.                            Normal load                Impact load
                                                                                                                                            Supported                  Supported
                                                                                                                                             by 2 rows                  by 4 rows                                                        Easy to hold the master
                                                                                                                                                                                                                                         roller for measuring.
                                                                                                                                                                                            Clearance   In the use               In measurement

                                                                                                                                                                                                Fig. 4 Processing and measuring grooves
                                                                                                                                                 Deformation                  Deformation   Measuring grooves is easy. You can obtain highly
                                                                                                                                                                                            accurate results for all types of NSK series. This is
                                                                                                                                            Fig. 5 Shock-resistance                         why you can purchase rails and slides separately
                                                                                                                                                                                            for random matching.

A91                                                                                                                                                                                                                                                                A92
(3) Types and Characteristics of NSK Linear Guides


                                                                          Slide
  Category                                                         Series shape      Shape/installation method Load direction/capacity Rolling element contact structure                     Characteristics                                  Applications           Page

                                                                                                                                                                           The SH series has achieved lower noise, gentler      • Semiconductor manufacturing
                                                                                                                                                                           tone, and smoother motion.                             equipment                                  A
                                                                           AN                                                                                              Random assembly products of rails and ball           • Liquid crystal display                     94
                                                                           BN                                                                                              slides are available as a standard.                    manufacturing equipment
                                                                                                                                                                                                                                • Cartesian type robots
                                                                                                                                                                           A Lower noise and gentler tone.                      • Robots that remove plastic molds
                                                                                                                                                                           A The contact angle between the ball and ball          from injection machine
                                                                                                                                                                             groove is set at 50 degrees. The load carrying     • Material hardling
                                                                           AL                                                                                                capacity against the vertical directions, which    • Food processing machines
                                                                           BL                                                                                                is practical in most operations, increases by
                                                                                                                                                                                                                                • Packaging/packing machines
                                                                                                                                                                             this design.
                                                                                                                                                                                                                                • Printing machines
                                                                                                                                                                           A The DF contact structure greatly absorbs the
                                                                                                                                                                                                                                • Woodworking machines
                                                                                                                                                                             error in the perpendicular direction to rail at
  High vertical load carrying capacity type




                                                                                                                                                                                                                                • Paper machines
                                                                                                                                                                             the time of installation.
                                                                                                                                                                                                                                • Measuring equipment




                                                                                                                                                                  50°
                                                                           EL                                                                                              A Balls make contacts at two points thanks to
                                                                           GL                                                                                                the offset Gothic arch groove. This keeps          • Inspecting equipment
                                                                                                                                                                             friction to a minimum.                             • Medical equipment




                                                                                                                                                                   50°
                                              Self-aligning type




                                                                                                                                                                           A Structural resistance against shock load.          • Electric discharge machines
                                                                                                                                                                           A Gothic arch groove renders measuring of ball       • Laser cutting machines
                                                                    SH                                                                                                       grooves accurate and easy.                         • Press                              A115
                                                                           FL
                                                                                                                                                                           A Standardized random-matching type allows           • Tool grinders
                                                                           HL
                                                                                                                                                                             separate purchase of rails and ball slides.        • Flat surface grinders
                                                                                                                                                                           A Stainless steel type is also available ( - #30).   • NC lathes
                                                                                                                                                                                                                                • Machining centers
                                                                                                                                                                                                                                • ATC


                                                                           EM
                                                                           GM




                                                                          High-load type                                                                                               Super-high-load type
                                                                                                                                                       L1                                                                                                L1
                                                                            AL, AN                      L1                   EL, FL, EM                                                  BL, BN                L1                GL, HL, GM




A93                                                                                                                                                                                                                                                                    A94
                                                                          Slide
  Category                                                         Series shape   Shape/installation method Load direction/capacity Rolling element contact structure                    Characteristics                                 Applications            Page

                                                                                                                                                                        The SS series has achieved lower noise, gentler     • Semiconductor manufacturing
                                                                                                                                                                        tone, and smoother motion, and has a low and         equipment
                                                                                                                                                                                                                                                                         A
                                                                           CL                                                                                           compact design.                                                                                  96
                                                                                                                                                                        Random assembly products of rails and ball          • Liquid crystal display
                                                                           AL
                                                                                                                                                                        slides are available as a standard.                  manufacturing equipment
                                                                                                                                                                                                                            • Cartesian type robots
                                                                                                                                                                        A Lower noise and gentler tone.
                                                                                                                                                                                                                            • Robots that remove plastic molds
                                                                                                                                                                        A Compact, low in height
                                                                                                                                                                        A The contact angle between the ball and the         from injection machine
                                                                           JL                                                                                             ball groove is set at 50 degrees. The load        • Material handling
                                                                           EL                                                                                             carrying capacity against vertical directions,    • Food processing machines




                                                                                                                                                                50°
                                                                                                                                                                          which is prevalent in most operations,
                                                                                                                                                                          increases by this design.                         • Packaging/packing machines
                                                                                                                                                                        A The DF contact structure greatly absorbs the      • Printing machines




                                                                                                                                                                50°
  High vertical load carrying capacity type




                                                                                                                                                                          error in the perpendicular direction of rail at   • Woodworking machines
                                                                                                                                                                          time of installation.
                                                                                                                                                                                                                            • Paper machines
                                                                           KL                                                                                           A Thanks to the offset Gothic arch groove,
                                                                           FL                                                                                             balls make contacts at two points. This keeps     • Measuring equipment
                                              Self-aligning type




                                                                                                                                                                          friction small.                                   • Inspection equipment
                                                                                                                                                                        A Great resistance against shock load.
                                                                                                                                                                                                                            • Medical equipment
                                                                                                                                                                        A Gothic arch groove renders measuring groove
                                                                    SS                                                                                                    accurate and easy.                                • Electric discharge machines        A139
                                                                                                                                                                        A Standardized random-matching type allows          • Laser cutting machines
                                                                           JM                                                                                             separate purchase of rails and ball slide.        • Press
                                                                           EM                                                                                           A Stainless steel type is also available.




                                                                                                       High-load type                                                                          Medium-load type
                                                                                                         AL                        L1                                                           CL                    L1




                                                                                                         EL, FL, EM                L1                                                                                 L1
                                                                                                                                                                                                JL, KL, JM




A95                                                                                                                                                                                                                                                                A96
                                                                          Slide
  Category                                                         Series shape      Shape/installation method Load direction/capacity Rolling element contact structure                     Characteristics                                  Applications           Page

                                                                                                                                                                           The LH series is applicable to a wide range of       • Cartesian type robots
                                                                                                                                                                           uses from general industrial use to high-accuracy    • Robots that remove plastic molds           A
                                                                           AN                                                                                              application.                                           from injection machine                     98
                                                                           BN                                                                                              Random assembly products of rails and ball           • Material handling
                                                                                                                                                                           slides are available as a standard.                  • Food processing machines
                                                                                                                                                                                                                                • Packaging/packing machines
                                                                                                                                                                           A The contact angle between the ball and ball        • Printing machines
                                                                                                                                                                             groove is set at 50 degrees. The load carrying     • Woodworking machines
                                                                           AL                                                                                                capacity against the vertical directions, which
                                                                                                                                                                                                                                • Paper machines
                                                                           BL                                                                                                is practical in most operations, increases by
                                                                                                                                                                                                                                • Measuring equipment
                                                                                                                                                                             this design.
                                                                                                                                                                                                                                • Inspecting equipment
                                                                                                                                                                           A The DF contact structure greatly absorbs the
                                                                                                                                                                             error in the perpendicular direction to rail at    • Semiconductor manufacturing
  High vertical load carrying capacity type




                                                                                                                                                                             the time of installation.                            equipment
                                                                                                                                                                                                                                • Liquid crystal display




                                                                                                                                                                  50°
                                                                           EL                                                                                              A Balls make contacts at two points thanks to
                                                                           GL                                                                                                the offset Gothic arch groove. This keeps            manufacturing equipment
                                                                                                                                                                             friction to a minimum.                             • Medical equipment




                                                                                                                                                                   50°
                                              Self-aligning type




                                                                                                                                                                           A Structural resistance against shock load.          • Electric discharge machines
                                                                                                                                                                           A Gothic arch groove renders measuring of ball       • Laser cutting machines
                                                                    LH                                                                                                       grooves accurate and easy.                         • Press                              A161
                                                                           FL
                                                                           HL                                                                                              A Standardized random-matching type allows           • Tool grinders
                                                                                                                                                                             separate purchase of rails and ball slides.        • Flat surface grinders
                                                                                                                                                                           A Stainless steel type is also available ( - #30).   • NC lathes
                                                                                                                                                                                                                                • Machining centers
                                                                                                                                                                                                                                • ATC


                                                                           EM
                                                                           GM




                                                                          High-load type                                                                                               Super-high-load type
                                                                                                                                                       L1                                                                                                L1
                                                                            AL, AN                      L1                   EL, FL, EM                                                  BL, BN                L1                GL, HL, GM




A97                                                                                                                                                                                                                                                                    A98
                                                                          Slide
  Category                                                         Series shape   Shape/installation method Load direction/capacity Rolling element contact structure                    Characteristics                                 Applications            Page

                                                                                                                                                                        The LS series is low in height, and applicable to   • Cartesian type robots
                                                                                                                                                                        a wide range of uses from general industrial use    • Robots that remove plastic molds
                                                                                                                                                                                                                                                                         A
                                                                           CL                                                                                           to high-accuracy application.                                                                    100
                                                                                                                                                                        Random assembly products of rails and ball           from injection machine
                                                                           AL
                                                                                                                                                                        slides are available as a standard.                 • Material handling
                                                                                                                                                                                                                            • Food processing machines
                                                                                                                                                                        A Compact, low in height
                                                                                                                                                                                                                            • Packaging/packing machines
                                                                                                                                                                        A The contact angle between the ball and the
                                                                                                                                                                          groove is set at 50 degrees. The load carrying    • Printing machines
                                                                           JL                                                                                             capacity against vertical directions, which is    • Woodworking machines
                                                                           EL                                                                                             prevalent in most operations, increases by        • Paper machines




                                                                                                                                                                50°
                                                                                                                                                                          this design.
                                                                                                                                                                        A The DF contact structure greatly absorbs the      • Measuring equipment
                                                                                                                                                                          error in the perpendicular direction of rail at   • Inspection equipment




                                                                                                                                                                50°
  High vertical load carrying capacity type




                                                                                                                                                                          time of installation.                             • Semiconductor manufacturing
                                                                                                                                                                        A Thanks to the offset Gothic arch groove,
                                                                                                                                                                                                                             equipment
                                                                           KL                                                                                             balls make contacts at two points. This keeps
                                                                           FL                                                                                             friction small.                                   • Liquid crystal display
                                              Self-aligning type




                                                                                                                                                                        A Great resistance against shock load.               manufacturing equipment
                                                                                                                                                                        A Gothic arch groove renders measuring groove
                                                                                                                                                                                                                            • Medical equipment
                                                                                                                                                                          accurate and easy.
                                                                    LS                                                                                                  A Standardized random-matching type allows          • Electric discharge machines        A185
                                                                                                                                                                          separate purchase of rails and ball slide.        • Laser cutting machines
                                                                           JM                                                                                           A Stainless steel type is also available.           • Press
                                                                           EM




                                                                                                       High-load type                                                                          Medium-load type
                                                                                                         AL                        L1                                                           CL                    L1




                                                                                                         EL, FL, EM                L1                                                                                 L1
                                                                                                                                                                                                JL, KL, JM




A99                                                                                                                                                                                                                                                               A100
                                                                                                                             Slide
                 Category                                                                                             Series shape   Shape/installation method Load direction/capacity Rolling element contact structure                        Characteristics                                   Applications               Page

                                                                                                                                                                                                                           The VH series delivers outstanding functionality         • Automotive manufacturing equipment
                                                                                                                                                                                                                           and long operating life under contaminated
                                                                                                                                                                                                                                                                                    • Press
                                                                                                                                                                                                                           environments.
                                                                                                                              AN                                                                                                                                                    • Machine tools loader/un-loader
                                                                                                                                                                                                                           Random assembly products of rails and ball
                                                                                                                              BN                                                                                           slides are available as a standard.                      • Tire molding machine
                                                                                                                                                                                                                           A The contact angle between the ball and the
                                                                                                                                                                                                                              raceway is set at 50 degrees. The load carrying       • Woodworking machine                            A
                                                                                                                                                                                                                              capacity against vertical directions, which is        • Automatic doors
                                                                                                                                                                                                                              prevalent in most operations, increases by                                                             102
                                                                                                                                                                                                                              this design.
                                                                                                                                                                                                                           A The DF contact structure greatly absorbs the
                  High vertical load carrying capacity type




                                                                                                                              AL
                                                                                                                                                                                                                              error in the perpendicular direction of rail at
                                                                                                                              BL
                                                                                                                                                                                                                              time of installation.
                                                                                                                                                                                                                           A Thanks to the offset Gothic arch groove,
                                                                                                                                                                                                                              balls make contacts at two points. This keeps
                                                                           Self-aligning type




                                                                                                                                                                                                                              friction small.
                                                                                                                                                                                                                           A Great resistance against shock load.




                                                                                                                                                                                                                  50°
                                                                                                                                                                                                                           A Gothic arch groove renders measuring groove
                                                                                                                              EL
                                                                                                                       VH                                                                                                     accurate and easy.                                                                             A207
                                                                                                                              GL                                                                                           A Standardized random-matching type allows




                                                                                                                                                                                                                   50°
                                                                                                                                                                                                                              separate purchase of rails and ball slide.
                                                                                                                                                                                                                           A Less than 1/10 the level of fine contaminants.
                                                                                                                                                                                                                           A Operating life under contaminated
                                                                                                                                                                                                                              environments is more than 5 times longer.
                                                                                                                              FL                                                                                                       High-load type
                                                                                                                              HL                                                                                                       AL, AN                 L1              EL, FL, EM
                                                                                                                                                                                                                                                                                                      L1




                                                                                                                                                                                                                                      Super-high-load type
                                                                                                                              EM                                                                                                                                                                      L1
                                                                                                                                                                                                                                       BL, BN                 L1              GL, HL, GM
                                                                                                                              GM
                                                                            Standard type High moment capacity type
    High vertical load carrying




                                                                                                                                                                                                                           High-moment rigidity and low profile products are        • Semiconductor manufacturing
                                                                                                                                                                                                                           most suited for a single linear guideway system.
                                                                                                                                                                                                                           Random assembly products of rails and ball                   equipment
          capacity type




                                                                                                                                                                                                                           slides are available as a standard.                      • Liquid crystal display
                                                                                                                                                                                                                   50°




                                                                                                                                                                                                                           A The rail is wide. This contributes to a high rolling
                                                                                                                                                                                                                              moment carrying capacity and to great moment              manufacturing equipment
                                                                                                                       LW     EL                                                                                                                                                                                             A229
                                                                                                                                                                                                                              rigidity when only single linear guide is in use.     • Conveyor systems
                                                                                                                                                                                                                   50°




                                                                                                                                                                                                                           A Balls contact at two points in the offset Gothic
                                                                                                                                                                                                                              arch groove, keeping friction small.                  • Medical equipment
                                                                                                                                                                                                                           A High resistance against shock load                     • Microscope XY stage
                                                                                                                                                                                                                           A Standardized random-matching assemblies allows
                                                                                                                                                                                                                              separate purchase of rails and ball slides.
Four-directional iso-




                                                                                                                                                                                                                                                                                    •   Automotive manufacturing equipment
                                                      load carrying type




                                                                                                                                                                                                                           The TS series is suitable for transfer equipment.
                                                                                                                                                                                                                    45°




                                                                                                                                                                                                                           A Newly developed manufacturing process                  •   Press
                                                                                                                                                                                                                             contribute to low cost.                                •   Machine tools loader/un-loader
                                                                                                                       TS     AN                                                                                                                                                    •   Tire molding machine                 A243
                                                                                                                                                                                                                    45°




                                                                                                                                                                                                                           A Standardized random-matching assemblies allows
                                                                                                                                                                                                                                                                                    •   Woodworking machine
                                                                                                                                                                                                                             separate purchase of rails and ball slides.            •   Automatic doors


A101                                                                                                                                                                                                                                                                                                                          A102
                                                                      Slide
  Category                                                     Series shape   Shape/installation method Load direction/capacity Rolling element contact structure                          Characteristics                                 Applications      Page

                                                                                                                                                                        The RA series roller guides have realized the        • Machining centers
                                                                                                                                                                        world highest load capacity.
                                                                                                                                                                        Super-high rigidity and smooth motion                • NC lathes

                                                                       AN
                                                                                                                                                                        contribute to high performance of machine tools.     • Heavy cutting machine tools           A
                                                                                                                                                                        A Unique design of rollers and optimum parts
                                                                                                                                                                                                                                                                     104
  Four-directional iso-load carrying type




                                                                       BN                                                                                                 design facilitate the high-load capacity and       • Gear cutters
                                                                                                                                                                          high rigidity.                                     • Electric discharge machines
                                                                                                                                                                        A High-performance seals, a standard feature
                                                                                                                                                                          in the roller guides, maintain the initial         • Press
                                                                                                                                                                          performance for a prolonged time.
                                                                                                                                                                        A The installation of retaining piece achieves       • Grinders
                                            Super-rigid type




                                                                                                                                                                          smooth motion.
                                                                                                                                                                  45°   A Random assembly products of rails and roller
                                                                       AL                                                                                                 slides are available as a standard.
                                                                RA                                                                                                                                                                                           A251
                                                                       BL                                                                                         45°
                                                                                                                                                                                           High-load type
                                                                                                                                                                                             AL, AN                              EM                L1
                                                                                                                                                                                                                  L1




                                                                       EM                                                                                                                  Super-high-load type
                                                                                                                                                                                             BL, BN                              GM            L1
                                                                       GM                                                                                                                                     L1




                                                                                                                                                                        The LA series provides a top class high-load         • Machining centers
                                                                                                                                                                        capacity for the ball linear guides, even with       • NC lathes
                                                                       AN                                                                                               not high friction. The series is most suited for
                                                                       BN                                                                                               machine tools.                                       • Heavy cutting machine tools
                                                                                                                                                                        A The contact angle between the ball and the         • Gear cutters
  Four-directional iso-load carrying type




                                                                                                                                                                          raceway is set at 45 degrees. This makes load      • Electric discharge machines
                                                                                                                                                                          carrying capacity and rigidity equal in vertical
                                                                                                                                                                          and lateral directions.                            • Press
                                                                                                                                                                        A Six-row ball grooves support load from             • Grinders
                                                                       AL                                                                                                 vertical and lateral directions, enhancing
                                            Super-rigid type




                                                                       BL
                                                                                                                                                                          rigidity and increasing load carrying capacity.
                                                                                                                                                                  45°




                                                                                                                                                                        A Appropriate friction
                                                                                                                                                        45° 45°




                                                                LA                                                                                                      A Best for machine tools.                                                            A269
                                                                                                                                                                                 High-load type
                                                                                                                                                                                                                                              L1
                                                                                                                                                                  45°




                                                                                                                                                                                  AL, AN                L1              EL, FL
                                                                       EL
                                                                       GL



                                                                                                                                                                                 Super-high-load type
                                                                                                                                                                                                                                              L1
                                                                                                                                                                                  BL, BN                L1              GL, HL
                                                                       FL
                                                                       HL



A103                                                                                                                                                                                                                                                          A104
  Category                               Series   Slide   Shape/installation method Load direction/capacity Rolling element contact structure                   Characteristics                                           Applications         Page
                                                  shape
                                                                                                                                                Low inertia and low dust generation miniature series.    • Semiconductor manufacturing
                                                                                                                                                A Low dust generation, highly smooth operation             equipment
                      Standard type




                                                  AL                                                                                            A Super-small size




                                                                                                                                        45°
                                                  AR                                                                                                                                                     • Liquid crystal display
                                                                                                                                                A Stainless steel
                                          PU      TR                                                                                                                                                       manufacturing equipment             A289    A
                                                                                                                                                A Series with a ball retainer




                                                                                                                                        45°
                                                  UR                                                                                                                                                     • Medical equipment                           106
                                                                                                                                                A Standardized random matching allows
                                                  BL                                                                                                                                                     • Optical stage
                                                                                                                                                  separate purchase of rails and ball slides.
                                                                                                                                                                                                         • Microscope XY stage
                                                                                                                                                                                                         • Conveying optical fiber
                                                                                                                                                Low inertia and low dust generation miniature wide
                                                                                                                                                series.                                                  • Small robots
                   High moment
                   capacity type




                                                                                                                                                A Low dust generation, highly smooth operation           • Computer peripheral equipment




                                                                                                                                        45°
                                                  AR
                                                  TR                                                                                            A Super-small size                                       • Pneumatic equipment
                                          PE                                                                                                                                                                                                   A299
                                                                                                                                                A Stainless steel is standard as the material.




                                                                                                                                        45°
                                                  UR
                                                  BR                                                                                            A Series with a ball retainer is standardized.
                                                                                                                                                A Standardized random matching allows
                                                                                                                                                   separate purchase of rails and ball slides.
                                                                                                                                                Miniature series                                         • Semiconductor manufacturing
                                                                                                                                                A Super-small size
                      Standard type




                                                  AL                                                                                                                                                       equipment
                                                                                                                                                A Stainless steel is standard as the material.




                                                                                                                                        45°
                                                  TL                                                                                                                                                     • Liquid crystal display
                                                  AR                                                                                            A Series with a ball retainer is standardized.
                                          LU                                                                                                    A Standardized random matching allows                      manufacturing equipment             A309




                                                                                                                                        45°
                                                  TR
                                                                                                                                                                                                         • Medical equipment
  Miniature type




                                                  BL                                                                                              separate purchase of rails and ball slides.
                                                  UL                                                                                                                                                     • Optical stage
                                                                                                                                                                                                         • Microscope XY stage
                                                  AL                                                                                            Miniature wide series                                    • Conveying optical fiber
                                                  TL                                                                                            A Super-small size in wide rail type                     • Small robots
                   High moment
                   capacity type




                                                  AR
                                                                                                                                                A Stainless steel is standard as the material.

                                                                                                                                        45°
                                                  TR                                                                                                                                                     • Computer peripheral equipment
                                                  BL                                                                                            A Series with a ball retainer is standardized.           • Pneumatic equipment
                                          LE                                                                                                                                                                                                   A321
                                                                                                                                                A Standardized random matching allows
                                                                                                                                        45°
                                                  UL
                                                  CL                                                                                              separate purchase of rails and ball slides.
                                                  SL
                                                  AR
                                                  TR
                                                                    Standard type               High-load type                                                              Standard type               High-load type      Medium-load type
                                                                     AL, TL, AR, TR            BL, UL, UR                                                                   AL, TL, AR, TR        BL, UL, BR, UR         CL, SL (LE only)
                                                           LU, PU                                                                                                  LE, PE          L1                      L1                   L1
                                                                            L1                       L1




                                                                                                                                                The LL series is a compact and lightweight               • Part of platter pen head
                      Lightweight type




                                                                                                                                                miniature linear guide for press molding.                • Robot hand
                                                                                                                                                A Rails and ball slides are thin steel plate,
                                                                                                                                        45°




                                                                                                                                                                                                         • Pneumatic equipment
                                                                                                                                                  therefore they are lightweight.
                                          LL       PL                                                                                                                                                                                          A335
                                                                                                                                        45°




                                                                                                                                                A Stainless steel as a standard material




A105                                                                                                                                                                                                                                            A106
                                                                                           Slide
  Category                                                                          Series shape   Shape/installation method Load direction/capacity Rolling element contact structure                         Characteristics                                   Applications         Page

                                                                                                                                                                                              The HA Series ball guide with high-precision         • Die and mold tooling machine
                                                                                                                                                                                              and high-load carrying capacity, featuring high-       center
                                                                                                                                                                                              motion accuracy equivalent to hydrostatic
                                                                                            AN                                                                                                                                                     • Precision processing machine             A
                                                                                                                                                                                              bearings.
                                                                                                                                                                                                                                                   • Heavy cutting machine tools              108
                                                                                                                                                                                              A Ball passage vibration has been reduced to
  Four-directional iso-load carrying type




                                                                                                                                                                                                one-third of conventional models by ultra-long     • Gear cutters
                                              Super rigidity, high-precision type




                                                                                                                                                                                                ball slides and specification of new design.       • Press machines
                                                                                                                                                                                              A The contact angle between the ball and the         • Grinders




                                                                                                                                                                                        45°
                                                                                                                                                                                                raceway is set at 45 degrees. This makes load




                                                                                                                                                                             45° 45°
                                                                                            AL                                                                                                  carrying capacity and rigidity equal in vertical
                                                                                                                                                                                                and lateral directions.
                                                                                                                                                                                              A High motion accuracy is realized by super-




                                                                                                                                                                                        45°
                                                                                     HA                                                                                                                                                                                               A341
                                                                                                                                                                                                finished ball groove feature (option).
                                                                                                                                                                                              A End seal, bottom seal, and inner seal of high
                                                                                                                                                                                                dust proof specification are available as a
                                                                                                                                                                                                standard.
                                                                                            EM
                                                                                                                                                                                              A Best for high-grade working machine.



                                                                                                                                                                                                                     EM
                                                                                                                                                                                                                                         L1
                                                                                                                   AL, AN                  L1




                                                                                                                                                                                              The HS Series ball guide with high-precision         •   Precision processing machine
                                                                                                                                                                                              featuring high-motion accuracy equivalent to         •   Electric discharge machines
                                                                                                                                                                                              hydrostatic bearings.                                •   Grinders
                                                                                                                                                                                              A Ball passage vibration has been reduced to
                                                                                                                                                                                                                                                   •   Liquid crystal display
  High vertical load carrying capacity type




                                                                                            AL                                                                                                   one-third of conventional models by ultra-long
                                              Self-aligning, super-precision type




                                                                                                                                                                                                 ball slides and specification of new design.          manufacturing equipment
                                                                                                                                                                                              A The contact angle between the ball and the
                                                                                                                                                                                       50°


                                                                                                                                                                                                 raceway is set at 50 degrees. The load carrying
                                                                                                                                                                                                 capacity against vertical directions, which is
                                                                                                                                                                                                 prevalent in most operations, increases by
                                                                                                                                                                                       50°




                                                                                                                                                                                                 this design.
                                                                                     HS                                                                                                       A The DF contact structure greatly absorbs the                                          A355
                                                                                                                                                                                                 error in the perpendicular direction of rail at
                                                                                                                                                                                                 time of installation.
                                                                                            EM
                                                                                                                                                                                              A Thanks to the offset Gothic arch groove,
                                                                                                                                                                                                 balls make contacts at two points. This keeps
                                                                                                                                                                                                 friction small.


                                                                                                                                          L1                                                                           EM
                                                                                                                                                                                                                                              L1
                                                                                                                    AL




A107                                                                                                                                                                                                                                                                                   A108
(4) Guide to Technical Services                          (5) Linear Guides: Handling Precautions
CAD drawing data                                          NSK linear guides are high quality and are easy to         3. Precautions in use
NSK offers CAD data for linear guides. Please             use. NSK places importance on safety in design.
                                                          For maximum safety, please follow precautions as                                                     80°C
downlode it from the website of NSK.
                                                          outlined below.                                                                                      Max
NSK website
http://www.nsk.com                                       1. Lubrication                                                                                                         A
                                                                                                                          Do not contaminate. Temperature limitation.
• Data in drawings are filed in the actual size (some                                                                                                                           110
 parts are simplified). You can use these data without
 processing.
• Drawings are three-views projection.
• Dimension lines are omitted to render the data as                        Confirm lubrication.
 standard drawing for database.
                                                         a. If your linear guide is rust prevention specification,                 Do not hang upside down.
                                                          thoroughly wipe the rust prevention oil, and put
Data offered by CAD                                       lubricant inside of slide before using.                    a. Make every effort not to allow dust and foreign
  NSK linear guides                                      b. If you are using oil as lubricant, the oil may not         objects to enter.
                                                          reach the raceway depending on how the slide is            b. Please apply splash guard or bellows to the linear
    SH Series
                                                          installed. Consult NSK in such case.                         guide to prevent sticking resolvent or coolant when
    SS Series
                                                                                                                       it contains corrosive material.
    LH Series                                                                                                        c. The temperature of the place where linear guides
                                                         2. Handling
    LS Series                                                                                                          are used should not exceed 80°C (excluding heat-
    LA Series                                                                                                          resistant type linear guides). A higher temperature
    LW Series                                                                                                          may damage the plastic end cap.
    PU Series                                                                                                        d. If the user cuts the rail, thoroughly remove burrs
    PE Series                                                                                                          and sharp edges on the cut surface.
                                                                                                                     e. When hanging upside-down (e.g. the rail is
    LU Series                                                 Handle with care.         Do not disassemble.
                                                                                                                       installed upside-down on the ceiling in which the
    LE Series
                                                                                                                       slide faces downward), should the end cap be
    RA Series                                                                                                          damaged, causing the balls or rollers to fall out,
                                                                                                                       the slide may be detached from the rail and fall. For
(2) Telephone consultation with NSK                                                                                    such use, take measures including installing a safety
    engineers                                                     Do not drop.          Do not give impact.            device.
This catalog contains technical explanation for
each section. However, some descriptions and             a. Random-matching slides are installed to the              4. Storage
explanations may be insufficient due to page               provisional rail when they leave the factory. Handle
limitation, etc. To amend this shortcoming, NSK            the slide with care during installation to the rail.
offers telephone assistance. NSK engineers are           b. Do not disassemble the guide unless absolutely
pleased to help you. Our local offices are listed          necessary. Not only does it allow dust to enter, but it
in the last part of this catalogue. Call local NSK                                                                                Store in the correct position.
                                                           lessens precision.
office or representative in your area.                   c. Slide may move by simply leaning the rail. Make
                                                           sure that the slide does not disengage from the rail.     a. Linear guide may bend if the rail is stored in
                                                         d. Standard end cap is made of plastic. Beating it or        inappropriate position. Place it on a suitable surface,
                                                           hitting it against an object may cause damage.             and store it in a flat position.




A109                                                                                                                                                                   A110
(6) Design Precautions

 The following points must be heeded in examining
 the life.                                                                    When an extraordinary large
                                                                              load is applied during stroke

                                                                                                                              A
                                                           • If an extraordinary large load is applied at certain
                   In case of oscillating stroke             position of the stroke, calculate not only the life              112
                                                             based on the mean effective load, but also the life
                                                             based on the load in this range.
• If the balls or rollers do not rotate all the way, but   • When an extraordinary heavy load is applied and
  only halfway, and if this minute stroke is repeated,       thus the application of high tensile stress to fixing
  lubricant disappears from the contact surface              bolts of the rails and slides is foreseen, the strength
  of balls or rollers and raceways. This generates           of the bolts should be considered.
  "fretting," a premature wear. Fretting cannot be
  entirely prevented, but it can be mitigated.
                                                                              When calculated life is
• A grease which prevents fretting is recommended                             extraordinarily short
  for oscillating stroke operations. Using a standard                         (Less than 3000 km in calculated
  grease, life can be markedly prolonged by adding                            life.)
  a normal stroke travel (about the slide length) once
  every several thousand cycles.                           • In such case, the contact pressure to the balls
                                                             or rollers and the rolling contact surface is
                                                             extraordinarily high.
                   When applying pitching or               • Operated under such state continually, the life is
                   yawing moment                             significantly affected by the loss of lubrication and
                                                             the presence of dust, and the actual life becomes
                                                             shorter than calculated.
• Load applied to the ball or roller rows inside the
                                                           • It is necessary to reconsider arrangement, the
  slide is inconsistent if pitching or yawing moment
                                                             number of slide, and the type of model in order to
  load is applied. Loads are heavy on the balls or
                                                             reduce the load to the slide.
  rollers on each end of the row.
                                                           • It is necessary to consider preload for calculation of
• In such case, a heavy load lubricant grease or oil are
                                                             rating life, when selecting Z3 (medium preload) or Z4
  recommended. Another countermeasure is using
                                                             (heavy preload) as a preload. Please consult NSK.
  one size larger model of linear guide to reduce the
  load per ball or roller.
• Moment load is insignificant for 2-rail, 4-slides
  combination which is commonly used.                                         Application at high speed



                                                           • The standard maximum allowable speed of a
                                                             linear guide under normal conditions is 100 m/min.
                                                             However, the maximum allowable speed can be
                                                             affected by accuracy of installation, temperature,
                                                             external loading etc.
                                                           • The end cap with high speed specification must be
                                                             used when operating speed exceeds the permissible
                                                             speed. Please consult NSK.

A111                                                                                                                   A112

				
DOCUMENT INFO
Shared By:
Categories:
Stats:
views:62
posted:4/15/2011
language:English
pages:11