GRWs product catalouge

Shaft tolerances in µm
.0001˝
Ball bearing bore Calibration Type of Fit
Grade P0 P5 (page 58)
Tolerance in µm 0/-8 0/-5 0/-2,5 -2,5/-5
Tolerance in .0001 inch 0/-3 0/-2 0/-1 -1/-2
Operating Conditions
Low loading
Medium speed -5/-13 -5/-11 -5/-8 -8/-11
No vibration -2/-5 -2/-4 -2/-3 -3/-4
Sliding fit
Low to
medium loading 0/-8 0/-6 0/-3 -3/-6
Medium speed 0/-3 0/-2.5 0/-1.2 -1.2/-2.5
Low vibration
Heavy loading
High speed +4/-4 +4/-2 +4/+1 +1/-2
High frequency +1.6/-1.6 +1.6/-1 +1.6/+.4 +.4/-1
vibrations
Transition fit
Press fit
Table 12: Shaft tolerances
Housing tolerances in µm
.0001˝
Ball bearing outside diameter Calibration Type of Fit
Grade P0 P5 (page 58)
Tolerance in µm 0/-8 0/-5 0/-2,5 -2,5/-5
Tolerance in .0001 inch 0/-3 0/-2 0/-1 -1/-2
Operating Conditions
Low loading
Medium speed +5/-3 +5/-1 +5/+2 +2/-1
No vibration +2/-1.2 +2/-.4 +2/+1 +1/-.4
Sliding fit
Low to
medium loading 0/-8 0/-6 0/-3 -3/-6
Medium speed 0/-3 0/-2.5 0/-1.2 -1.2/-2.5
Low vibration
Heavy loading
High speed -4/-12 -3/-9 -3/-6 -6/-9
High frequency -1.6/-5 +1.2/-3.5 +1.2/-2.5 -2.5/-3.5
vibrations
Transition fit
Press fit
Table 13: Housing tolerances
The information on this page applies to steel shafts and housings. The linear thermal expansion coefficient of other materials
(e.g. aluminium housing) must be taken into consideration at operating temperatures other than ambient (20 °C).
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