Page 50 - Rollingbearings

A.2 Tolerances

Table 12
Normal tolerances for tapered bores, taper 1:30

A

SL t ΔSL
  1
2 2
B
A B
(∅d) α

Tolerances ∅dt DΔmp SD (α)  2 (B) Vdsp SR ACS ∅d 1 t Δd1mp SD (∅d 1 )

A.2

1
1
1 = SL is a calculated nominal size from d and d , i.e. SL= (d – d) = 2B tan(α/2);
∆SL is a calculated characteristic, i.e. ∆SL = ∆d1mp – ∆dmp
Bore diameter Tolerance class
Normal
d t ∆dmp t Vdsp 1) t ∆SL
> ≤ U L U L
mm µm µm µm

– 80 +15 0 19 +30 0
80 120 +20 0 22 +35 0
120 180 +25 0 40 +40 0
180 250 +30 0 46 +46 0
250 315 +35 0 52 +52 0
315 400 +40 0 57 +57 0
400 500 +45 0 63 +63 0
500 630 +50 0 70 +70 0
630 800 +75 0 – +100 0
800 1 000 +100 0 – +100 0
1 000 1 250 +125 0 – +115 0
1 250 1 600 +160 0 – +125 0
1 600 2 000 +200 0 – +150 0

1) Applies in any cross section of the bore.

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