tolerances for thrust bearings

Tolerances for thrust bearings

Nominal 
diameter
Shaft washer Housing washer
d, d2, D1) Tolerance classes   Tolerance classes Tolerance classes
Normal, P6, P5   Normal P6 P5 Normal, P6, P5
tΔdmp, tΔd2mp tVdsp, tVd2sp   tSi2)3) tSi2)3) tSi2)3) tΔDmp tVDsp tSe2)
> U L           U L    
mm μm μm   μm μm μm μm μm  
                           
18 0 –8 6   10 5 3 0 –11 8 Identical to 
tSi of shaft 
washer of 
same bearing
18 30 0 –10 8   10 5 3 0 –13 10
30 50 0 –12 9   10 6 3 0 –16 12
 
50 80 0 –15 11   10 7 4 0 –19 14
80 120 0 –20 15   15 8 4 0 –22 17
120 180 0 –25 19   15 9 5 0 –25 19
 
180 250 0 –30 23   20 10 5 0 –30 23
250 315 0 –35 26   25 13 7 0 –35 26
315 400 0 –40 30   30 15 7 0 –40 30
 
400 500 0 –45 34   30 18 9 0 –45 34
500 630 0 –50 38   35 21 11 0 –50 38
630 800 0 –75 55   40 25 13 0 –75 55
 
800 1 000 0 –100 75   45 30 15 0 –100 75
1 000 1 250 0 –125 95   50 35 18 0 –125 95
1 250 1 600 0 –160 120   60 40 25 0 –160 120
 
1 600 2 000 0 –200 150   75 45 30 0 –200 150
2 000 2 500 0 –250 190   90 50 40  0 –250 190

Thrust bearing height

d, d21) tΔTs tΔT1s4) tΔT1s tΔT3s4) tΔT4s4)5)
  Single direction
bearings without 
seat washer
Single direction 
bearings with 
seat washer
Double direction 
bearings without 
seat washers
Double direction 
bearings with 
seat washers
Spherical roller 
thrust bearings
 
          SKF SKF Explorer
> U L U L U L U L U L U L
mm μm μm μm μm μm
                           
30 +20 –250 +100 –250 +150 –400 +300 –400
30 50 +20 –250 +100 –250 +150 –400 +300 –400
50 80 +20 –300 +100 –300 +150 –500 +300 –500 0 –125 0 –100
 
80 120 +25 –300 +150 –300 +200 –500 +400 –500 0 –150 0 –100
120 180 +25 –400 +150 –400 +200 –600 +400 –600 0 –175 0 –125
180 250 +30 –400 +150 –400 +250 –600 +500 –600 0 –200 0 –125
 
250 315 +40 –400 0 –225 0 –150
315 400 +40 –500 0 –300 0 –200
400 500 +50 –500 0 –400
 
500 630 +60 –600 0 –500
630 800 +70 –750 0 –630
800 1 000 +80 –1 000 0 –800
 
1 000 1 250 +100 –1 400 0 –1 000
1 250 1 600 +120 –1 600 0 –1 200
1 600 2 000 +140 –1 900
2 000 2 500 +160 –2 300
  1. For double direction bearings, the values apply only for d2 ≤ 190 mm and D ≤ 360 mm.
  2. Applies only to thrust ball bearings and thrust cylindrical roller bearings, each with 90° contact angle.
  3. Not applicable for central shaft washers.
  4. Not included in ISO 199.
  5. ISO 199 uses symbol T.

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