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Normal tolerances for radial bearings (except tapered roller bearings)

Symbols Outer ring
Inner ring
d1) Δdmp2) Vdp Vdmp ΔBs ΔB1s VBs Kia
Diameter Series
7,8,9 0,1 2,3,4
over incl. high low max max max max high low high low max max
mm μm μm μm μm μm μm μm
- 2,5 0 -8 10 8 6 6 0 -40 - - 12 10
2,5 10 0 -8 10 8 6 6 0 -120 0 -250 15 10
10 18 0 -8 10 8 6 6 0 -120 0 -250 20 10
18 30 0 -10 13 10 8 8 0 -120 0 -250 20 13
30 50 0 -12 15 12 9 9 0 -120 0 -250 20 15
50 80 0 -15 19 19 11 11 0 -150 0 -380 25 20
80 120 0 -20 25 25 15 15 0 -200 0 -380 25 25
120 180 0 -25 31 31 19 19 0 -250 0 -500 30 30
180 250 0 -30 38 38 23 23 0 -300 0 -500 30 40
250 315 0 -35 44 44 26 26 0 -350 0 -500 35 50
315 400 0 -40 50 50 30 30 0 -400 0 -630 40 60
400 500 0 -45 56 56 34 34 0 -450 0 -630 50 65
500 630 0 -50 63 63 38 38 0 -500 0 -800 60 70
630 800 0 -75 - - - - 0 -750 - - 70 80
800 1 000 0 -100 - - - - 0 -1 000 - - 80 90
1 000 1 250 0 -125 - - - - 0 -1 250 - - 100 100
1 250 1 600 0 -160 - - - - 0 -1 600 - - 120 120
1 600 2 000 0 -200 - - - - 0 -2 000 - - 140 140
2 000 2 500 0 -250 - - - - 0 -2 500 - - 160 160
2 500 3 150 0 -300 - - - - 0 -3 000 - - 190 180
3 150 4 000 0 -400 - - - - 0 -4 000 - - 230 200
4 000 5 000 0 -500 - - - - 0 -5 000 - - 270 230
  1. 1) For cam followers the stud shank diameter d can be used as the bore diameter reference.
  2. 2) Tolerances for tapered bores (→ taper 1:12 and taper 1:30)

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