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ABIS Precision Ball Bearings Radial Play

With bores of 0.6 to 90mm and precision grades to ABEC 7

ABIS Bearings Radial Play

The radial play of a bearing has considerable influence on its performance. Therefore consideration must be given to the speed, temperature, load, adjacent materials (different coefficients of expansion) and fitting conditions associated with each individual application when selecting the appropriate group. The following notes are given for guidance against the various groups details in the table below:

Service requirements


RADIAL PLAY

 

Remarks

Miniature Bearings

Standard Metric Bearings

l/D

 <10

10

only

10+

-18

18+

-24

24+

-30

30+

-40

40+

-50

 

0.001

mm

0.001

inch

Ref

0.001mm

Ref

Small bearing clearance required axially without the use of preload shims or springs.

Low torque not the prime requirement.

High thrust loads will not occur.

TIGHT

 

0-5

 

 

 

 

3-8

 

0-2

 

 

 

 

1-3

 

MC1

 

 

  

 

MC2

0-7

 0-9

0-10

1-11

 1-11

1-11

C2

Interference fits must be avoided.

Beware differential expansion.

Careful attention should be paid to any excessive temperature rise in service.

Moderate torque acceptable.

Moderate thrust loads may occur.

MEDIUM  5-10 2-4

MC3
(Std)

2-133-185-205-206-206-23CN (CO) StdInterference fits are not recommended.

8-13

3-5

MC4

8-23

11-25

13-28

13-28

15-33

18-36

C3

Minimal torque required.

Or

 

High thrust load capability.

LOOSE 13-20

5-8

MC5

14-29

18-33

20-36

23-41

28-46

30-51

C4

Moderate interference fits can be applied.

Axial play may require to be controlled by shims or springs.

 20-28

 8-11

MC6

 20-37

 25-45

28-48

30-53

40-64

45-73

C5

 

Materials

MaterialJISISOBS
Nut WasherNutWasherNutWasher
Carbon SteelC45DC011.05031.0330070M46CR4
Stainless SteelSUS304SUS3041.43011.4301304S31304S31

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