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BEARING TOLERANCES

Table 8. 5 Tolerances for Magneto Bearings
Table 8. 5. 1 Tolerances for Inner Rings and Width of Outer Rings

Units : μm

Nominal Bore & dmp V dp V dmp & Bs (or & Cs) (1) V Bs (or V Cs ) (1) & Ts K ia S d S ia
Diameter Class 6
Normal Class 5 Normal Class Class Normal Class Class Normal Class 5 Normal Class 5 Normal Class 6 Normal Class 6 Class 5 Class 5 Class 5
d 6 5 6 5 Class 6 Class 6 Class 5
max. max. max. max. max. max.
(mm) max. 5 10 6 4 7 7
15 5 10 7 4 7 7
over incl. high low high low high low max. max. max. max. max. max. high low high low 5 high low 13 8 4 8 8
20
2.5 10 0 - 8 0 -7 0 -5 6 5 4 6 5 3 0 -120 0 - 40 +120 -120
20
10 18 0 - 8 0 -7 0 -5 6 5 4 6 5 3 0 -120 0 - 80 +120 -120
+120 -120
18 30 0 -10 0 -8 0 -6 8 6 5 8 6 3 0 -120 0 -120

Note (1) The width deviation and width variation of an outer ring is determined according to the inner ring of the same

bearing.

Remarks The bore diameter "no-go side" tolerances (high) specified in this table do not necessarily apply within a distance of

1.2 times the chamfer dimension r (max.) from the ring face.

Table 8. 5. 2 Tolerances for Outer Rings

Units : μ m

Nominal Outside & Dmp V Dp V Dmp K ea S ea S D
Diameter
Bearing Series E Bearing Series EN
D
Normal Class 6 Class 5 Normal Class 6 Class 5 Normal Class Class Normal Class Class Normal Class Class Class Class
(mm) 6 5 6 5 6 5 5 5

over incl. high low high low high low high low high low high low max. max. max. max. max. max. max. max. max. max. max.

6 18 + 8 0 +7 0 +5 0 0 - 8 0 -7 0 -5 6 5 4 6 5 3 15 8 5 8 8

18 30 + 9 0 +8 0 +6 0 0 - 9 0 -8 0 -6 7 6 5 7 6 3 15 9 6 8 8

30 50 +11 0 +9 0 +7 0 0 -11 0 -9 0 -7 8 7 5 8 7 4 20 10 7 8 8

Remarks The outside diameter "no-go side" tolerances (low) do not necessarily apply within a distance of 1.2 times the

chamfer dimension r (max.) from the ring face.

A 70 A 71