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SP class tolerances

Inner ring
d tΔds, tΔdmp1)2) tVdsp tΔBs tVBs tKia tSd
> ≤ U L
U L


mm µm µm µm µm µm µm










– 18 0 –5 3 0 –100 5 3 8
18 30 0 –6 3 0 –100 5 3 8
30 50 0 –8 4 0 –120 5 4 8










50 80 0 –9 5 0 –150 6 4 8
80 120 0 –10 5 0 –200 7 5 9
120 180 0 –13 7 0 –250 8 6 10










180 250 0 –15 8 0 –300 10 8 11
250 315 0 –18 9 0 –350 13 10 13
315 400 0 –23 12 0 –400 15 12 15










400 500 0 –28 14 0 –450 25 12 18
500 630 0 –35 18 0 –500 30 15 20
630 800 0 –45 23 0 –750 35 15 23




















Outer ring
D tΔDs, tΔDmp2) tVDsp tΔCs, tVCs tKea tSD3)
> ≤ U L



mm µm µm
µm µm










30 50 0 –7 4 Identical to
tΔBs, tVBs of
an inner ring of
the same
bearing as the
outer ring		 5 4
50 80 0 –9 5 5 4
80 120 0 –10 5 6 4,5







120 150 0 –11 6 7 5
150 180 0 –13 7 8 5
180 250 0 –15 8 10 5,5







250 315 0 –18 9 11 6,5
315 400 0 –20 10 13 6,5
400 500 0 –23 12 15 7,5







500 630 0 –28 14 17 9
630 800 0 –35 18 20 10
800 1 000 0 –50 25 25 15


Tolerance symbols and definitions → table
  1. 1) SP tolerances for 1:12 tapered bore → table
  2. 2) Tolerances tΔds and tΔDs apply to NNU design bearings with an outside diameter D ≤ 630 mm.

    Tolerances tΔdmp and tΔDmp apply to larger NNU design bearings and to N and NN design bearings.
  3. 3) Tolerance values have become half the values in accordance with the revised ISO standard (2014) because

    SD is defined as perpendicularity of outer ring outside surface axis with respect to datum established from the outer ring face.

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