Page 152 - Rollingbearings

B.6 Bearing interfaces
Table 7
Tolerances for solid steel shafts – seats for thrust bearings 1)

Conditions Shaft diameter Dimensional tolerance 2) Total radial run-out Total axial run-out Ra
tolerance tolerance

mm – – – µm

Axial loads only on thrust ball bearings
h6 IT5/2 IT5 1,6 3)
Combined radial and axial loads on spherical roller thrust bearings
Stationary load on shaft all j6 IT5/2 IT5 1,6 3)
washer

Rotating load on shaft ≤ 200 k6 IT5/2 IT5 1,6 3)
washer, or direction of
load indeterminate > 200 to 400 m6 IT5/2 IT5 1,6
> 400 n6 IT5/2 IT5 1,6

1) For cylindrical roller thrust bearings, refer to Design considerations, page 885. For needle roller thrust bearings, refer to Design considerations, page 903.
2) The envelope requirement (symbol � from ISO 14405­1) is not shown but applies to all tolerance classes.
3) For d ≤ 80 mm, use Ra = 0,8 µm.
Bearing interfaces

B.6

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