Rotolin Type MS

Type MS SLIDING AND ROTARY MOTION BALL BUSHES

CPE sliding ball bushes are designed to allow an unrestricted length of linear travel and consequently, are not suitable for preloading. They are capable of both sliding and rotary motions and provide a sensitive fit, superior to any plain bushings. Sliding ball bushes are eminently satisfactory for a wide variety of purposes not requiring preloading, and particularly suitable for light loading and vertical applications. Being virtually friction-free in operation, they permit high speed performance with freedom from lubrication troubles or risk of seizure.

Engineering Data

Series “MS” bearings must be used with a clearance fit between the balls and the shaft. The housing and shaft tolerances stated must therefore be strictly adhered to in order to prevent excessive closing in of the bearing sleeve on assembly. The outer race and balls are of 535 A99 steel. Shafts should be hardened to at least 60 HRC and ground to at least 0.25um.

Metric Range

DIMENSIONS AND SPECIFICATIONS

Bearing Ref B Shaft Dia D Bearing O.D. L+.00 -.13
MS 16-28 16 28 22.00
MS 20-32 20 32 26.00
MS  25-39 25 39 32.00
MS 32-46 32 46 42.00
MS 40-55 40 55 50.00
MS 50-70 50 70 64.00

SHAFT AND HOUSING TOLERANCES AND RESULTING FITS

Bearing Ref Housing Dh* Shaft Bs Clearance Fit X Static Capacity Kn
Min Max
 MS 16-28 28.00

+.007 -.005

16.00

+.000 -.005

.002 .012 1.34
 MS 20-32 32.00

+.010 -.005

20.00

+.000 -.005

.005 .015 1.91
MS  25-39 39.00

+.013 -.005

25.00

+.000 -.005

.005 .015 2.24
 MS 32-46 46.00

+.013 -.005

32.00

+.000 -.005

.008 .018 4.18
 MS 40-55 55.00

+.013 -.005

40.00

+.000 -.005

.008 .018 5.37
 MS 50-70 70.00

+.013 -.005

50.00

+.000 -.005

.008 .018 9.34

Inch Range

DIMENSIONS AND SPECIFICATIONS

Bearing RefB
Shaft Dia
D
Bearing O.D.
L+.000
-.005
MS 500-8750.50000.87500.625
MS 625-10000.62501.00000.812
MS 750-12500.75001.25001.000
MS 875-15000.87501.50001.250
MS 1000-16251.00001.62501.500
MS 1125-17501.12501.75001.750
MS 1250-18751.25001.87502.000
MS 1500-21251.50002.12502.250
MS 1750-26251.75002.62502.625
MS 2000-28752.00002.87503.000

SHAFT AND HOUSING TOLERANCES AND RESULTING FITS

Bearing Ref Housing Dh* Shaft Bs Clearance Fit $ Static Capacity Ibf
Min Max
 MS 500-875 0.8750

+.0003 -.0002

0.5000

+.0000 -.0002

.0001 .0005 158
 MS 625-1000 1.0000

+.0003 -.0002

0.6250

+.0000 -.0002

.0001 .0005 302
 MS 750-1250 1.2500

+.0004 -.0002

0.7500

+.0000 -.0002

.0002 .0006 430
 MS 875-1500 1.5000

+.0004 -.0002

0.8750

+.0000 -.0002

.0002 .0006 503
 MS 1000-1625 1.6250

+.0004 -.0002

1.0000

+.0000 -.0002

.0002 .0006 692
 MS 1125-1750 1.7500

+.0004 -.0002

1.1250

+.0000 -.0002

.0002 .0006 907
 MS 1250-1875 1.8750

+.0005 -.0002

1.2500

+.0000 -.0002

.0003 .0007 1195
 MS 1500-2125 2.1250

+.0005 -.0002

1.5000

+.0000 -.0002

.0003 .0007 1612
 MS 1750-2625 2.6250

+.0005 -.0002

1.7500

+.0000 -.0002

.0003 .0007 2978
 MS 2000-2875 2.8750

+.0005 -.0002

2.0000

+.0000 -.0002

0003 .0007 3733

Bearing reference indicates bearing type, shaft diameter and outside diameter.

‡ Between Shaft, Balls and Outer Sleeve I.D.

Larger, heavy duty and special types are available. Please contact us to discuss your requirements

*CAUTION: Excessive press fits may affect preload. If in doubt please contact us for alternative mounting methods.

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