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P6 class tolerances for radial bearings, except tapered roller bearings

Inner ring
d tΔdmp1) tVdsp1) tVdmp tΔBs tVBs tKia


Diameter series
All Normal Modified3)

> ≤ U L 7, 8, 92) 0, 1   2, 3, 4
U L L


mm μm μm μm μm μm μm














– 2,5 0 –7 9 7 5 5 0 –40 – 12 5
2,5 10 0 –7 9 7 5 5 0 –120 –250 15 6
10 18 0 –7 9 7 5 5 0 –120 –250 20 7
18 30 0 –8 10 8 6 6 0 –120 –250 20 8
30 50 0 –10 13 10 8 8 0 –120 –250 20 10
50 80 0 –12 15 15 9 9 0 –150 –380 25 10
80 120 0 –15 19 19 11 11 0 –200 –380 25 13
120 180 0 –18 23 23 14 14 0 –250 –500 30 18
180 250 0 –22 28 28 17 17 0 –300 –500 30 20
250 315 0 –25 31 31 19 19 0 –350 –500 35 25
315 400 0 –30 38 38 23 23 0 –400 –630 40 30
400 500 0 –35 44 44 26 26 0 –450 – 45 35
500 630 0 –40 50 50 30 30 0 –500 – 50 40
630 800 0 –50 – – – – 0 –750 – 60
45
800 1 000 0 –60 – – – – 0 –1 000 – 60 50
1 000 1 250 0 –75 – – – – 0 –1 250 – 70 60
1 250 1 600 0 –90 – – – – 0 –1 600 – 70 70
1 600 2 000 0 –115 – – – – 0 –2 000 – 80 80




























Outer ring
D tΔDmp tVDsp4)
tVDmp4) tΔCs tKea


Open bearings
Diameter series		 Capped bearings5)

tVCs
> ≤ U L 7, 8, 92) 0, 1 2, 3, 4 0, 1, 2, 3, 4




mm μm μm μm μm
μm















2,5 18 0 –7 9 7 5 9
5 Identical to
tΔBs and tVBs
of an inner ring
of the same
bearing as the
outer ring		 8
18 30 0 –8 10 8 6 10
6 9
30 50 0 –9 11 9 7 13
7 10
50 80 0 –11 14 11 8 16
8 13
80 120 0 –13 16 16 10 20
10 18
120 150 0 –15 19 19 11 25
11 20
150 180 0 –18 23 23 14 30
14 23
180 250 0 –20 25 25 15 –
15 25
250 315 0 –25 31 31 19 –
19 30
315 400 0 –28 35 35 21 –
21 35
400 500 0 –33 41 41 25 –
25 40
500 630 0 –38 48 48 29 –
29 50
630 800 0 –45 56 56 34 –
34 60
800 1 000 0 –60 75 75 45 –
45 75
1 000 1 250 0 –75 – – – –
– 85
1 250 1 600 0 –90 – – – –
– 100
1 600 2 000 0 –115 – – – –
– 100
2 000 2 500 0 –135 – – – –
– 120














  1. 1) Tolerances for tapered bores (taper 1:12 → table).
  2. 2) Diameter series 7 and 8 not covered by ISO 492.
  3. 3) Applies to inner rings and outer rings of bearings of matched bearing sets consisting of two or more bearings. Does not apply to universally matchable angular contact ball bearings.
  4. 4) Applies to bearings prior to mounting and after removal of internal or external snap ring.
  5. 5) Capped bearings are sealed or shielded bearings.

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