Ball Screw Assemblies eLINE

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Ball Screw Assemblies eLINE Powered By Docstoc
					Ball Screw Assemblies
eLINE

The Drive & Control Company
2     Bosch Rexroth Corp.    Linear Motion and Assembly Technologies          eLINE BSA        R310A 3314 (2005.04)



Linear Motion Technology
Ball Rail Systems                       Standard Rail Systems
                                        Super Rail Systems
                                        Rail Systems with aluminum Runner Block
                                        High-speed Rail Systems
                                        Corrosion-resistant Rail Systems
                                        Wide Rail Systems


                                        Rail Systems with integrated Measuring System
                                        Clamp and Brake Units for Ball Rail Systems
                                        Racks for Ball Rail Systems
                                        Miniature Rail Systems
                                        Cam Roller Guides


Roller Rail Systems                     Standard Rail Systems
                                        Wide Rail Systems
                                        High-load Rail Systems
                                        Rail Systems with integrated Measuring System
                                        Clamp and Brake Units for Roller Rail Systems
                                        Racks for Roller Rail Systems


Linear Bushings and Shafts              Linear Bushings, Linear Sets
                                        Shafts, Shaft Supports, Shaft Support Blocks


                                        Ball Transfer Units
                                        Traditional Technical Parts

Ball Screw Assemblies


Linear Motion Systems                   Linear Motion Slides                    – Ball Screw
                                                                                – Toothed Belt

                                        Linear Modules                          –     Ball Screw
                                                                                –     Toothed Belt
                                                                                –     Gear Rack
                                                                                –     Pneumatic Drive
                                                                                –     Linear Motor

                                        Compact Modules                         – Ball Screw
                                                                                – Toothed Belt
                                                                                – Linear Motor

                                        Multi-axis Motion System

                                        Precision Module                        – Ball Screw

                                        Ball Rail Tables                        – Ball Screw
                                                                                – Linear Motor


                                        Controllers, Motors, Electrical Accessories

                                        Electric Cylinders
R310A 3314 (2005.04)        eLINE BSA         Linear Motion and Assembly Technologies   Bosch Rexroth Corp.   3



eLINE Ball Screw Assemblies
Product Overview                                                   4

Technical Data                                                     6

eLINE Ball Screw Assemblies with Screw-in Single Nut ZEV-E-S
Single fixed stock, fixed length                                  10

eLINE Ball Screw Assemblies with Single Nut with Flange FBZ-E-S
Single fixed stock, fixed length                                  12

eLINE Ball Screw Assemblies with Screw-in Single Nut ZEV-E-S
Fixed stock, customer-specified length                            14

eLINE Ball Screw Assemblies with Single Nut with Flange FBZ-E-S
Fixed stock, customer-specified length                            16

Angular-contact thrust bearing unit
with Groove nut, LAL series                                       18

Grooved Ball Bearing
with Safety Ring, LAD series                                      20

Lubrication                                                       21

Mounting                                                          22
4     Bosch Rexroth Corp.     Linear Motion and Assembly Technologies          eLINE BSA      R310A 3314 (2005.04)

eLINE Ball Screw Assemblies

Product Overview

Product Background                       eLINE Ball Screws are available from stock as complete assemblies,
                                         with screw-in or flanged nuts.
                                         The pre-finished machining is easily combined with the fixed bearing LGL
                                         (support block with bearing) as a complete package.
                                         The eLine products can simplify the choices for many customer-specified
                                         transport applications.
                                         The part number specification and ordering process for new applications
                                         can also be handled more effectively.
                                         Relaxed tolerances provide very economical linear motion solutions. Every
                                         nut is assembled with clearance.
                                         The flanged nut comes standard with seals; the screw-in version offers seals
                                         as an option.
                                         Cost savings are always a priority with the eLINE.
                                         The load capacity of the support bearing is critical. By friction welding the
                                         bearing forward, we were able to enlarge smaller screw diameters and
                                         increase the load bearing capacity.
R310A 3314 (2005.04)         eLINE BSA             Linear Motion and Assembly Technologies    Bosch Rexroth Corp.          5




Advantages
–    High axial load capacity
–    From stock
–    Flanged or screw-in nuts
–    With seals, if specified
–    Bearing and slotted lock nut
     optional




Angular-contact thrust bearing with Nut, LAL series                                   Grooved Ball Bearing
The end bearing LGL with angular-contact ball bearing in an X arrangement makes       with Safety Ring, LAD series
an ideal accessory.                                                                   Storage with grooved Ball Bearings

–   High load capacity
–   Very easy mounting with the flanged housing
–   Corrosion-resistant housing
–   Seals provide protection from contaminants
–   Simple preload of the fixed bearing
–   Maintenance free for most application due to the large lubricant reservoir with
    initial greasing

Economical turnkey solutions made easy.
6      Bosch Rexroth Corp.     Linear Motion and Assembly Technologies                   eLINE BSA     R310A 3314 (2005.04)

eLINE Ball Screw Assemblies

Technical Data
Speed
                                              vmax = 1 m/s                               Dependant of size and lead



Acceleration
                                              amax = 20 m/s2                             Dependant of size and lead



Temperature Stability
                                              t    = 0 to 80°C                           Temperature of surrounding environment



Seal                                       eLINE Ball Screw Assemblies come
                                           with seals, if required.


Horizontal Assembly                                                     F           mw
Calculation
                                                                                          mt
(In connection with the corresponding
direction)




                                                                                         mt = Table mass (N)
                                              F1   = (mt + mw) · a + F                   mw = Work piece mass (N)
                                                                                         a = Acceleration (m/s2 )


Calculation of the Bearing                                                               Feq = Equivalent load
Load                                          Feq = F1 · kf                              kf = Working factors



Recommended Operating Factors kf             Operating Factors   Application
                                                     0.8         KGT with manual operation
                                                     1.0         Clean environment applications
                                                     2.0         Secondary Axis for machine tools
                                                     4.0         Dirty environment applications



To determine operational performance, calculate the relationship of Feq/C . With this value, you can read the operational
performance and relubrication data in the following diagrams.
R310A 3314 (2005.04)   eLINE BSA                                    Linear Motion and Assembly Technologies     Bosch Rexroth Corp.           7




Operational Performance eLINE
Ball Screw Assemblies                                             P=5      P = 10
                                                                  50,000   100,000




                                   Operational Performance (km)
                                                                   5,000    10,000




                                                                    500       1,000                           Operational
                                                                                                              Performance


                                                                                                          Relubrication
                                                                     50        100




                                                                                 0.05    0.1            0.2               0.3          0.4
                                                                                                                 Feq/C (Load /Dynamic Load)


Example:                           An eLINE Ball Screw with 10 mm lead with 15% dynamic load results in an
                                   operational performance of approximately 1500 km.
                                   Relubricate every 500 km.

                                   Relubrication every 50 x 106 U.
                                   P = 10            every 500 km
                                   P=5               every 250 km
8      Bosch Rexroth Corp.      Linear Motion and Assembly Technologies                    eLINE BSA          R310A 3314 (2005.04)

eLINE Ball Screw Assemblies

Technical Data
Acceptance Conditions and Tolerance Grades

Permissible travel deviation
                                              Ball screw with precision rolled screw SN-R
similar to DIN 69 051, Part 3
and ISO 3408-3                                                                        l1
                                                                                                                         l0
                                                 le                                   lu                          le
Symbol definitions
(excerpt):




                                                                                                       300p
l0 = Nominal travel
l1 = Thread length                                                                         300
∆l0 = Travel deviation




                                                        +
lu = Useful travel
le = Excess travel
ep = Tolerance for actual mean
         travel deviation
nup = Permissible travel variation




                                                                                                                  ep
         within useful travel lu
n300p= Permissible travel deviation
         within 300 mm travel
n2pp = Permissible travel deviation
                                                      Dl 0




         within 1 revolution

Subindices:
p
   = Permissible




                                                                                                                  ep
a
   = Actual

                                                         –


Maximum permissable path                    Useful           ep T9           ep T10                 2 · lu
deviation ep                                                          (µm)         (µm)      ep =          ·ν          ν300p = 210 µm
                                                    0                    0            0             300 300P
                                                  100                   87          140
                                                  250                  217          350
                                                  500                  433          700
                                                  750                  650        1050
                                                 1000                  867        1400
                                                 1250                1083         1750
                                                 1500                1300         2100
                                                 1750                1517         2450
                                                 2000                1733         2800
                                                 2250                1950         3150
                                                 2500                2167         3500



Excess travel le                                                                           Recommended overrun for the design
                                            le = 2 · d0
R310A 3314 (2005.04)          eLINE BSA                Linear Motion and Assembly Technologies                                Bosch Rexroth Corp.                 9




Runouts and location deviations
based on DIN 69 051, Part 3
and ISO 3408-3

Radial runout t5 of the outer diameter                                                                              d0              l5     t5p in µm for l5
                                                                                            t5p AA´                 above    up            tolerance grade
of the ball screw shaft over the length                       l5    l5       l5
l5 used to determine the straightness in                                                                                      to                  9        10
relation to AA´.                                                                                                      6      12       80         40         80
                                                                                                                     12      25      160         40         80
                                                                                                                     25      50      315         40         80




                                                                                            d0
                                                          A                                       A
                                               2 d0                                                        2 d0
                                                                                  l1                                l1/d 0                 t5max in µm for l1 ≥ 4l5
                                                                                                                    above      up to       tolerance grade       9
                                                              l5    l5                                                                     10
                                                                                                                                    40         80       160
                                                      A                                               A´
                                                                                                                       40           60       120        240
                                               t 5p




                                                                                                                       60           80       200        400
                                                                                  t 5 max                              80          100       320        640




Radial runout t6 of the bearing diameter                                                                            Nominal      Ref. t6p in µm for l6 ≤ l
                                                          t6p AA´
in relation to AA´ for l6 ≤ l.                                                                                      diameter    length tolerance grade
                                                                                                                    d0             l
                                   l6a                                                                              above up
Where l6 > l then t6a ≤ t6a ·
                                                                                                               d0

                                                                                                                             to              9         10
                                       l                                                                               6    20     80       20         40
                                                                         A                       A                    20    50 125          25         50
                                                       2 d0
                                                       l6




Coaxial deviation t7´ of the journal                                                                                Nominal      Ref. t7p´ in µm for l7 ≤ l
                                                                   t7p´ C                   bearing seat
diameter of the ball screw shaft in                                                                                 diameter    length tolerance grade
relation to the bearing diameter                                                                                    d0             l
for l7 ≤ l.                                                                                                         above up
                                                                                                            d0




                                       l7a                                                                                   to               9        10
Where l7 > l then t7a ≤ t7a ·                                                                                          6    20     80         6        12
                                           l                  C
                                                                                                                      20    50 125            6        12
                                               l7




Axial runout t8´ of the shaft (bearing)                                                                             Nomnial     t8p´ in µm
                                                    t8p´ C                                                          diameter    tolerance grade
face of the ball screw shaft in relation
to the bearing diameter.                                                                                            d0
                                                                                                           F        above up
                                                                                                               d0
                                                        d




                                                                                                                             to     9       10
                                                                                                                       6    63      6       12
                                                          C
                                                    bearing seat
10      Bosch Rexroth Corp.    Linear Motion and Assembly Technologies                    eLINE BSA       R310A 3314 (2005.04)

eLINE Ball Screw Assemblies

eLine BSA with Screw-in Single Nut ZEV-E-S, fixed length
–    Rexroth mounting dimensions
–    Single fixed bearing
–    With seals
–    With backlash 0.1 mm
–    Screw tolerance class T9 or T10




                                           Size               Tolerance class    Length                          Part Numbers
Ordering Code
                                           d 0 x P x Dw - i                      LTotal          LScrew
                                           12 x 5R x 2-3      T9                           400             317   R2540   002   01
                                                              T10                          400             317   R2540   000   01
                                           12 x 10R x 2-2     T9                           400             317   R2540   002   02
                                                              T10                          400             317   R2540   000   02
                                           16 x 5R x 3-3      T9                           550             476   R2540   002   03
                                                              T10                          550             476   R2540   000   03
                                           16 x 10R x 3-3     T9                           550             476   R2540   002   04
                                                              T10                          550             476   R2540   000   04
                                           20 x 5R x 3-4      T9                           550             490   R2540   002   05
                                                              T10                          550             490   R2540   000   05


                                          d0   =    Nominal diameter
                                          P    =    Lead (R = right, L = left)
                                          DW   =    Ball diameter
                                          i    =    No. of turns
R310A 3314 (2005.04)                 eLINE BSA                  Linear Motion and Assembly Technologies                       Bosch Rexroth Corp.           11




           Undercut Form F DIN 509                                                                                      Lube hole
                                                                              Hole for hook
  Threat undercut DIN 76 short                                                wrench
                                                                                                                L7
  Undercut Form E DIN 509                                          D8
                                                                                                  D4


  Screw End
  Form 81




                                                                           D1




                                                                                           G1
           h7




                                       h6
                         G1
         D2




                                     D1




         L2              LG1          L1
                                                                                                                L15
                                                                                          LMut
                         LZF                                                      L Gew
                                                                                  L Ges

                                      friction-welded
  Screw End
  Form 83
                                                                                                       D




                                                                                                       w
                                                 DR




                                                                   DF




                                                                                                           d2
                                                                                                                d1
                                                                                                                      d0
                         LZF                     LR        LF




Nut

 Size               Dimensions (mm)                                                                                                                Backlash
   d0         P             D1                        D4                D8                    G1                       LNut          L7             L15
                           h10                                                                                        ±0.3
  12        5             25.5                    2.7                   3.2             M20 x 1                         36           8.5               10
  12       10             25.5                    2.7                   3.2             M20 x 1                         40           8.5               10
  16        5             32.5                    2.7                   4.2            M26 x 1.5                        40          10.5               12
  16       10             32.5                    2.7                   4.2            M26 x 1.5                        54          10.5               12
  20        5               38                    2.7                     8            M35 x 1.5                        50          12.5               14

Screw

  Size            Form         Dimensions (mm)
  d0   P                         d1      d2      LZF       DR        LR           DF        LF             D1          L1      D2         L2      G1        LG1
  12   5            83         11.4     9.9      60        15        15          9.5         8             12          17      10         25   M12x1         18
  12 10                        11.4     9.9      60        15        15          9.5         8             12          17      10         25   M12x1         18
  16   5                       15.0    12.9      60        15        15         12.5         8             12          17      10         25   M12x1         18
  16 10                        15.0    12.9      60        15        15         12.5         8             12          17      10         25   M12x1         18
  20   5            81         19.0    16.9      60         -          -           -          -            12          17      10         25   M12x1         18

 Size              Basic load rating          max. Speed
                   dyn. C      stat. C0       vmax
   d0     P              (N)         (N)               (m/min)
   12     5           2300        3500                     30
   12    10           1500        2200                     60
   16     5           5600        7100                     25
   16    10           5800        7400                     50
   20     5           8600      12900                      20
12      Bosch Rexroth Corp.    Linear Motion and Assembly Technologies                    eLINE BSA       R310A 3314 (2005.04)

eLINE Ball Screw Assemblies

eLine BSA with Single Nut with Flange FBZ-E-S, fixed length
–    Rexroth mounting dimensions
–    Single fixed bearing
–    With seals
–    With backlash 0.1 mm
–    Screw tolerance class T9 or T10




Ordering Code                              Size               Tolerance class    Length                          Part Numbers
                                           d 0 x P x Dw - i                      LTotal          LScrew
                                           20x5Rx3-4      T9                               550             490   R2540   002   06
                                                          T10                              550             490   R2540   000   06
                                           25x5Rx 3-4     T9                               700             640   R2540   002   07
                                                          T10                              700             640   R2540   000   07
                                           25x10Rx3-4     T9                               700             640   R2540   002   08
                                                          T10                              700             640   R2540   000   08
                                           32x5Rx3,5-4    T9                              1200            1120   R2540   002   09
                                                          T10                             1200            1120   R2540   000   09
                                           32x10Rx3,969-5 T9                              1200            1120   R2540   002   10
                                                          T10                             1200            1120   R2540   000   10


                                          d0   =    Nominal diameter
                                          P    =    Lead (R = right, L = left)
                                          DW   =    Ball diameter
                                          i    =    No. of turns
R310A 3314 (2005.04)                     eLINE BSA                     Linear Motion and Assembly Technologies                        Bosch Rexroth Corp.               13




 Screw End Form 81
                                                                                            Plastic recirculation cap
 Undercut Form F DIN 509
 Thread undercut                                                                                   Lube hole
 DIN 76 short                                                                                                                                     D7
 Undercut Form
                                                                                                   L10




                                                                                                                                                                S
 E DIN 509
                                                                                                                                 D6




                                                                                                                                                                         j
                                                                                                                    –0,05
                                                         D1 +0,7




                                                                                             D1




                                                                                                                 D1 –0,1

                                                                                                                            D5
        h7




                              h6
                     G1


                             D1
      D2




                                                                                                                                                                    °
                                                                                                                                                                 60
                                                                                                                                                                6x
           L2        LG1           L1
                                                                            L5     L3         L4
                                                                                        L                           Plastic recirculation cap


                     L ZF                                          L Gew




                                                                                                                                                       w
                                                                                                                                                       D
                                                            LGes




                                                                                                                                                            d2
                                                                                                                                                                 d1
                                                                                                                                                                      d0
Nut

 Size                     Dimensions (mm)
 d0             P            D1        D5           D6                 D7           L                L3        L4             L5            L10             S            ϕ
                                                                                 ±0.5                                                                                   (°)
 20           5              33           58        45                6.6         40                10          6            15           15               M6           30
 25           5              38           63        50                6.6         43                10          6           16.5         16.5              M6           30
 25          10              38           63        50                6.6         62                10         16            16           36               M6           30
 32           5              48           73        60                6.6         46                12          6            17           17               M6           30
 32          10              48           73        60                6.6         77                12         16            20           45               M6           30


Screw

  Size               Form          Dimensions (mm)
 d0           P                        d1          d2                 LZF          D1                     L1          D2               L2             G1              LG1
 20           5       81             19.0       16.9                  60           12                     17          10               25          M12x1               18
 25           5                      24.0       21.9                  60           15                     19          12               25          M15x1               16
 25          10                      24.0       21.9                  60           15                     19          12               25          M15x1               16
 32           5                      31.0       28.4                  80           20                     25          18               40          M20x1               15
 32          10                      31.0       27.9                  80           20                     25          18               40          M20x1               15

 Size                     Basic load rating       max. Speed
                          dyn. C      stat. C0    vmax
   d0            P              (N)         (N)            (m/min)
   20            5           8600      12900                   20
   25            5           9500      16300                   16
   25           10           9400      16200                   32
   32            5          13000      24000                   13
   32           10          19000      35000                   25
14        Bosch Rexroth Corp.      Linear Motion and Assembly Technologies                       eLINE BSA       R310A 3314 (2005.04)

eLINE Ball Screw Assemblies

eLINE BSA with Screw-in Single Nut ZEV-E-S, customer-specified length
–   Single fixed bearing
–   With seals
–   With backlash 0.1
–   Screw tolerance class T9 or T10




    LGew = LGes – LZF – LZL




Note:
Observe overrun (2 · d0)




Ordering Code                                 eLINE Ball Screw Assemblies

                                               Size               Tolerance class   Length                                  Part Numbers
                                               d 0 x P x Dw - i                     LTotal max          LScrew max
                                               12 x 5R x 2-3      T9                             1250                1182   R2540   002   11
d0    =    Nominal diameter
                                                                  T10                            1250                1182   R2540   002   21
P     =    Lead (R = right, L = left)
                                               12 x 10R x 2-2     T9                             1250                1182   R2540   002   12
DW    =    Ball diameter
                                                                  T10                            1250                1182   R2540   002   22
i     =    No. of turns
                                               16 x 5R x 3-3      T9                             1700                1628   R2540   002   13
                                                                  T10                            1700                1628   R2540   002   23
                                               16 x 10R x 3-3     T9                             1700                1628   R2540   002   14
                                                                  T10                            1700                1628   R2540   002   24
                                               20 x 5R x 3-4      T9                             2500                2427   R2540   002   15
                                                                  T10                            2500                2427   R2540   002   25


                                              When ordering, please ensure that part numbers and and desired total length LGes are given.
                                              (R2540 xx2 xx, xxxx mm).
                                                                   LGes
R310A 3314 (2005.04)                 eLINE BSA                    Linear Motion and Assembly Technologies                                  Bosch Rexroth Corp.         15




           Undercut Form F DIN 509                                                                                  Lube hole
                                                                       Hole for hook
 Threat undercut DIN 76 short                                          wrench                                                             Undercut Form E DIN 509
                                                                                                              L7
 Undercut Form E DIN 509                                     D8                                                                                   Snap ring groove per DIN
                                                                                                D4
                                                                                                                                                  471
                                                                                                                                    L6           LS1H13
 Screw End
 Form 81




                                                                                         G1
                                                                  D1




                                                                                                                                                ST1
                                     h6
            h7




                                                                                                                                  D3 j6
                                   D1
                         G1
           D2




                                                                                                                                               S1
           L2            LG1        L1
                                                                                                              L15
                                                                                         LMut
                         LZF                                                  L Gew                                                 L ZL
                                                                              L Ges

                                  friction-welded
 Screw End
 Form 83
                                                                                                          D



                                                                                                          w
                                               DR




                                                                  DF




                                                                                                               d2
                                                                                                                     d1
                                                                                                                          d0
                        LZF                    LR           LF



Nut

  Size                 Dimensions (mm)                                                                                                                           Backlash
  d0            P              D1                     D4                      D8                          G1                     LNut                   L7             L15
                              h10                                                                                               ±0.3
      12         5           25.5                     2.7                     3.2                M20 x 1                          36                   8.5             10
      12        10           25.5                     2.7                     3.2                M20 x 1                          40                   8.5             10
      16         5           32.5                     2.7                     4.2               M26 x 1.5                         40                  10.5             12
      16        10           32.5                     2.7                     4.2               M26 x 1.5                         54                  10.5             12
      20         5             38                     2.7                       8               M35 x 1.5                         50                  12.5             14


Screw

Size            Form      Dimensions (mm)
 d0  P                      d1   d2 LZF         DR      LR   DF         LF          D1     L1        D2       L2        G1 LG1            D3    LZL   L6   S1   ST1   LS1
12   5          83        11.4 9.9 60           15      15 9.5           8          12     17        10       25     M12x1 18              6     8     6 5.7    h10   0.8
12 10                     11.4 9.9 60           15      15 9.5           8          12     17        10       25     M12x1 18              6     8     6 5.7    h10   0.8
16   5                    15.0 12.9 60          15      15 12.5          8          12     17        10       25     M12x1 18             10    12     9 9.6    h10   1.1
16 10                     15.0 12.9 60          15      15 12.5          8          12     17        10       25     M12x1 18             10    12     9 9.6    h10   1.1
20   5          81        19.0 16.9 60            -       -    -          -         12     17        10       25     M12x1 18             12    13    10 11.5   h11   1.1

 Size                  Basic load rating       max. Speed
                       dyn. C      stat. C0    vmax
   d0        P               (N)         (N)            (m/min)
   12        5            2300        3500                  30
   12       10            1500        2200                  60
   16        5            5600        7100                  25
   16       10            5800        7400                  50
   20        5            8600      12900                   20
16        Bosch Rexroth Corp.      Linear Motion and Assembly Technologies                   eLINE BSA         R310A 3314 (2005.04)

eLINE Ball Screw Assemblies

eLine BSA with Single Nut with Flange FBZ-E-S, customer-specified length
–   Single fixed bearing
–   With seals
–   With backlash 0.1
–   Screw tolerance class T9 or T10




    LGew = LGes – LZF – LZL




Note:
Observe overrun (2 · d0)




Ordering Code                                 eLINE Ball Screw Assemblies

                                               Size                    Tolerance class   Length                         Part Numbers
                                               d 0 x P x Dw - i                          LGes max       LGew max
d0    =    Nominal diameter                    20 x 5R x 3-4           T9                        2500          2427     R2540   002   16
P     =    Lead (R = right, L = left)                                  T10                       2500          2427     R2540   002   26
DW    =    Ball diameter                       25 x 5R x 3-4           T9                        5000          4925     R2540   002   17
i     =    No. of turns                                                T10                       5000          4925     R2540   002   27
                                               25 x 10R x 3-4          T9                        5000          4925     R2540   002   18
                                                                       T10                       5000          4925     R2540   002   28
                                               32 x 5R x 3,5-4         T9                        5000          4925     R2540   002   19
                                                                       T10                       5000          4925     R2540   002   29
                                               32 x 10R x 3,969-5      T9                        5000          4925     R2540   002   20
                                                                       T10                       5000          4925     R2540   002   30


                                              When ordering, please ensure that part numbers and and desired total length LGes are given.
                                              (R2540 xx2 xx, xxxx mm).
                                                                   LGes
R310A 3314 (2005.04)                   eLINE BSA                    Linear Motion and Assembly Technologies                             Bosch Rexroth Corp.              17




 Screw End Form 81
                                                  Lube hole                                                Undercut From E DIN 509
 Undercut Form F DIN 509
                                               Plastic recirculation                                                        Snap ring groove per DIN
 Threat undercut                               cap                                                                          471
 DIN 76 short                                                                                                                                      D7
 Undercut Form                                                                                      L6            LS1     H13
                                                                                    L10




                                                                                                                                                                  S
 E DIN 509
                                                                                                                                       D6




                                                                                                                                                                          j
                                                                                                                          –0,05
                                                  D1 +0,7




                                                                               D1




                                                                                                                       D1 –0,1
                                                                                                                 ST1
      h7




                            h6




                                                                                                  D3 j6
                  G1


                            D1
   D2




                                             D5




                                                                                                                S1




                                                                                                                                                                    60
                                                                                                                                                                   6x
        L2        LG1            L1
                                                                     L5   L3   L4
                                                                                                                  Plastic recirculation cap
                                                                           L
                  L ZF                                      L Gew                                   L ZL




                                                                                                                                                   w
                                                                                                                                               D
                                                     LGes




                                                                                                                                                        d2
                                                                                                                                                             d1
                                                                                                                                                                  d0
Nut

  Size                   Dimensions (mm)
  d0         P              D1        D5              D6            D7        L            L3              L4                     L5         L10              S           ϕ
                                                                           ±0.5                                                                                          (°)
  20          5              33         58           45             6.6     40             10              6                15               15              M6          30
  25          5              38         63           50             6.6     43             10              6               16.5             16.5             M6          30
  25         10              38         63           50             6.6     62             10             16                16               36              M6          30
  32          5              48         73           60             6.6     46             12              6                17               17              M6          30
  32         10              48         73           60             6.6     77             12             16                20               45              M6          30


Screw

  Size             Form          Dimensions (mm)
 d0     P                         d1     d2    LZF            D1    L1    D2        L2       G1      LG1          D3               LZL       L6      S1           ST1    LS1
 20     5              81        19.0 16.9     60             12    17    10        25    M12x1       18          12               13        10    11.5           h11    1.1
 25     5                        24.0 21.9     60             15    19    12        25    M15x1       16          17               15        12    16.2           h11    1.1
 25    10                        24.0 21.9     60             15    19    12        25    M15x1       16          17               15        12    16.2           h11    1.1
 32     5                        31.0 28.4     80             20    25    18        40    M20x1       15          20               18        14    19.0           h11    1.3
 32    10                        31.0 27.9     80             20    25    18        40    M20x1       15          20               18        14    19.0           h11    1.3

 Size                  Basic load rating          max. Speed
                       dyn. C      stat. C0       vmax
   d0         P              (N)         (N)               (m/min)
   20         5           8600      12900                      20
   25         5           9500      16300                      16
   25        10           9400      16200                      32
   32         5          13000      24000                      13
   32        10          19000      35000                      25
18    Bosch Rexroth Corp.     Linear Motion and Assembly Technologies           eLINE BSA   R310A 3314 (2005.04)

eLINE Ball Screw Assemblies

Angular-contact thrust bearing with nut, LAL series
Works both sides, screw-on type, for
cost-effective assembly                   for diameter d0 = 12 to 25

The bearing consists of:
– Angular-contact thrust bearing LGL
– Locknut NMG series




                                          for diameter d0 = 32




Ordering Code                             Size               Part Numbers
                                                    d0 x P
                                                 12 x 5/10   R1590   412   00
                                                 16 x 5/10   R1590   412   00
                                                    20 x 5   R1590   412   00
                                                 25 x 5/10   R1590   415   00
                                                   32 x 10   R1590   420   00
R310A 3314 (2005.04)            eLINE BSA          Linear Motion and Assembly Technologies         Bosch Rexroth Corp.      19




                                                                                        n
   for diameter d0 = 12 to 25




                                                                                                         A2
                                                                     m
                          D

                              d




                                                                               d2
                                              B                                             Ø0.2

                                              H                                         A1




                                                                                        n
   for diameter d0 = 32




                                                                                                       A2
                                                                      m
                          D
                          d




                                                                              d2
                                              B                                          Ø0.2
                                              H                                         A1




 Size            Dimensions   (mm)                                                                                 Weight
    d0      P         d             D         A1    A2         n        m           H          B        d2          ( kg)
    12   5/10        12         35.45         44    50        32       38          22         20        6.6        0.12
    16   5/10        12         35.45         44    50        32       38          22         20        6.6        0.12
    20      5        12         35.45         44    50        32       38          22         20        6.6        0.12
    25   5/10        15         38.45         47    51        35       39          24         22        6.6        0.14
    32     10        20         50.45         60    60        47       47          30         28        6.6        0.30



 Size             Basic load rating
                  dyn. C       stat. C0
    d0       P           (N)            (N)
    12    5/10       13200          17900
    16    5/10       13200          17900
    20       5       13200          17900
    25    5/10       16400          22400
    32      10       27500          40000
20    Bosch Rexroth Corp.     Linear Motion and Assembly Technologies                    eLINE BSA           R310A 3314 (2005.04)

eLINE Ball Screw Assemblies

Grooved Ball Bearing with safety ring, LAD series
The bearing consists of:
– Grooved ball bearing DIN 625... .2RS
– Safety Ring DIN 471 (2 Pieces)




Ordering Code                             Size                  Part Numbers
                                                      d0 x P
                                                 12   x 5/10    R1590   606   00
                                                 16   x 5/10    R1590   610   00
                                                      20 x 5    R1590   612   00
                                                 25   x 5/10    R1590   617   00
                                                 32   x 5/10    R1590   620   00


                                                                                        B
                                                                    D
                                                                         d




                                          Size                 Dimensions (mm)          Basic load rating (axial)   Complete Weight
                                                      d0 x P        d       D      B    dyn. C        stat. C0
                                                                                                (N)      (N)(kg)
                                                 12 x 5/10         6          19    5        2450         900              0.005
                                                 16 x 5/10        10          30    9        6000       2240               0.030
                                                    20 x 5        12          32   10        6950       2650               0.035
                                                 25 x 5/10        17          40   12        9500       4150               0.064
                                                 32 x 5/10        20          47   14      12700        5700               0.106


Compatible for eLINE Ball Screw
Assemblies with fixed bearings
R310A 3314 (2005.04)         eLINE BSA              Linear Motion and Assembly Technologies         Bosch Rexroth Corp.      21


Lubrication
Relubrication                                Size                        Relubrication quantity of grease (g)
for NLGI 2 grease                                                        Single nut, precision-rolled screw R
                                                d0 x P x Dw-i            FBZ-E-S                          ZEV-E-S
The nut has to be lubricated with               12 x 5R x 2 - 3                          –                           0.3
lubricant via the lube port before the          12 x 10R x 2 - 2                         –                           0.3
ball screw is started.                          16 x 5R x 3 - 3                          –                          0.85
                                                16 x 10R x 3 - 3                         –                           1.0
The relubrication is valid for Ball Screw       20 x 5R x 3 - 4                        0.7                           1.2
Assemblies with seals.                          25 x 5R x 3 - 4                        1.1                             –
                                                25 x 10R x 3 - 4                       1.3                             –
                                                32 x 5R x 3.5 - 4                      1.6                             –
                                                32 x 10R x 3.969 - 5                   2.3                             –



Oil lubrication                             Grease lubrication
The influence of the temperature on the     The advantage of grease lubrication is       The lubrication interval depends on
performance of the ball screw is very       that the ball screw can run long             many factors such as the degree of
significant, as the thermal expansion of    distances on one supply of grease. As        contamination, operating temperature,
the ball screw interferes with the          a result, a lubricating system is not        load, etc. The following values can thus
positioning accuracy of the assembly.       required in many cases. The amount of        serve only as a guideline.
One of the advantages of oil lubrication    grease used should fill the nuts to
over grease lubrication is therefore the    approximately half of their capacity.
minimized heat build-up of the ball         All commercially available ball bearing
screw, particularly at high speeds.         lubricating greases may be used. Read
As a rule, commercially available           the lubricant manufacturer’s
mineral base oils used for ball bearings    specifications carefully! Never use
are suitable. The necessary viscosity       greases with solid lubricant
depends on the speed, temperature           component (e.g. graphite or MoS2).
and load conditions of the respective
application (see DIN 51501, 51517,          Greases in accordance with DIN
51519 and GfT Worksheet 3).                 51825 K2K and, for higher loads,
                                            KP2K of NLGI Class 2 according to
Oils ranging from ISO VG 68 to              DIN 51818 are recommended for the
approx. ISO VG 460 are used in              longest possible lubrication intervals.
practice. The high viscosity grades         Tests have proven that greases of
(e.g. ISO VG 460) should be preferred       NLGI Class 00 achieve only about
in general and particularly for slow        50% of the running performance of
running screws. A maximum relubri-          Class 2 greases at high loads.
cation interval of up to 10 operating
hours can be attained with small
quantities from the table along side.


Tapered grease nipple
                                                                       M6




The Ball Screw Assemblies nut is to be
lubricated via the lubrication port with
grease before operation start-up.                                8



                                                           Part Number
                                                          R3417 008 02
22        Bosch Rexroth Corp.          Linear Motion and Assembly Technologies                eLINE BSA       R310A 3314 (2005.04)

eLINE Ball Screw Assemblies

Mounting
Condition as delivered
                                                  Rexroth Ball Screw Assemblies are           Cleaning:
                                                  normally lubricated with NLGl 2 grease      Various cleaning agents can be used
                                                  when specified. This initial lubrication    to degrease and wash the assembly:
                                                  allows for relubrication using either oil   – Aqueous cleaning agents
                                                  or grease. If you use a different type of   – Organic cleaning agents
                                                  lubrication, please ensure that the         Immediately after cleaning, thoroughly
                                                  other lubricant can be mixed. In special    dry all parts, then apply a preservative
                                                  cases, you can specify a corrosion-         coating or anti-corrosion oil.
                                                  preserved Ball Screw Assembly.              In all cases, take care to observe the
                                                                                              appropriate legal regulations
                                                  Important:                                  (environmental protection, health and
                                                  The selected lubricant must be in the       safety at work, etc.) as well as the
                                                  nut before the machine is started.          specifications for the cleaning agent
                                                                                              (e.g. handling).




Storage                                                                                       Ball screw assemblies are high-quality
                                                                                              systems that must be treated with due
                                                                                              care. In order to prevent damage and
                                                                                              contamination, the elements should not
                                                                                              be removed from the protective
                                                                                              wrapping until immediately before
                                                                                              installation. Once they have been
                                                                                              removed from the packaging, they must
                                                                                              be set down on V-shaped cradles.
Nut mounting
Single nut with standard backlash                 The nut unit may only be mounted using a mounting arbor. The outer diameter of
Single nut with reduced backlash                  the arbor should be approx. 0.1 mm smaller than the root diameter of the screw.
                                                  In most cases, the transport arobor on which the nuts are delivered may be used
                                                  to mount the nut. The end of the screw thread must be chamfered in order to
                                                  prevent damage to the seal and the internal components of the nut unit.


                                                                                              The various mounting steps are
                                                                                              described below. Proceed in reverse
                                                                                              order when removing the nut from the
                                                                                              screw. Take particular care not to
                                                                                              damage the nut, screw or internal
                                                                                              components, as this could result in
                                                                                              the premature failure of the ball screw
                                                                                              assembly.



Mounting arbor

 Size               Dimensions (mm)
           d0 x P        L        Di        Da
     12   x 5/10        55         8      9.85
     16   x 5/10        70       11       12.7
          20 x 5        70       15       16.5
                                                                 Di                                  L
     25   x 5/10        90       20       21.7
     32   x 5/10       100       26         28                   Da
R310A 3314 (2005.04)       eLINE BSA            Linear Motion and Assembly Technologies   Bosch Rexroth Corp.   23




Mounting steps                           Installation in the Machine
The nut is to be mounted as follows:     It is not normally necessary to remove
Remove the rubber ring from one end      the preservative coating before
of the mounting arbor.                   installation.

                                         – If the ball screw is contaminated it
                                           must first be cleaned (see “Cleaning”)
                                           and reoiled
                                         – Push the nut unit into the mounting
                                           bore, taking care to avoid any
                                           impacts or misalignment.
                                         – Tighten the mounting screws using
                                           a torque wrench if necessary.
                                           Maximum tightening torque for the
                                           steel/steel material pairing
                                           (Rm • 370 N/mm2), see table.

Push the mounting arbor with nut until   Steel/steel material pairing
it engages with the end of the thread.
The arbor must make contact with axial    Screw             Tightening torque
clearance. Carefully turn the nut unit    diamater          (Nm) strength class
onto the thread, applying only light                        to DIN ISO 898:
axial pressure.                                      (mm)       8.8      10.9   12.9
                                                       M3       1.3       1.8    2.1
                                                       M4       2.7       3.8    4.6
                                                       M6       9.5        13    16
                                                       M8        23        32    39
                                                      M10        46        64    77
                                                      M12        80      110    135
                                                      M16      195       275    330


                                         – For the steel/aluminum and
                                           aluminum/aluminum material
                                           pairings (Rm • 280 N/mm2), the
                                           maximum tightening torques
                                           specified in the follow table apply.
                                           When screwing into aluminum, the
                                           length of thread engagement should
Remove the arbor only when the nut         be at least 1.5 times the screw
unit is fully located on the screw         diameter.
thread.
                                         Steel/aluminum and aluminum/
                                         aluminum material pairing

                                          Screw             Tightening torque
                                          diamater          (Nm) strength class
                                                            to DIN ISO 898:
                                                 (mm)           8.8     10.9    12.9
                                                   M3           1.2       1.2    1.2
                                                   M4           2.4       2.4    2.4
                                                   M6           8.5       8.5    8.5
                                                   M8           20        20     20
                                                  M10           41        41     41
                                                  M12           70        70     70
                                                  M16          175       175    175
Bosch Rexroth Corporation
Linear Motion and
Assembly Technologies
14001 South Lakes Drive
Charlotte, NC 28273
Telephone (800) 438-5983
Facsimile (704) 583-0523
www.boschrexroth-us.com



Bosch Rexroth Corporation
Corporate Headquarters
5150 Prairie Stone Parkway
Hoffman Estates, IL 60192-3707
Telephone (847) 645-3600
Facsimile (847) 645-6201

Bosch Rexroth Corporation
Industrial Hydraulics
2315 City Line Road
Bethlehem, PA 18017-2131
Telephone (610) 694-8300
Facsimile (610) 694-8467

Bosch Rexroth Corporation
Electric Drives and Controls
5150 Prairie Stone Parkway
Hoffman Estates, IL 60192-3707
Telephone (847) 645-3600
Facsimile (847) 645-6201

Bosch Rexroth Corporation
Pneumatics
1953 Mercer Road
Lexington, KY 40511-1021
Telephone (859) 254-8031
Facsimile (859) 281-3491

Bosch Rexroth Corporation
Mobile Hydraulics
1700 Old Mansfield Road
Wooster, OH 44691-0394
Telephone (330) 263-3300
Facsimile (330) 263-3333




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R310A 3314

				
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