Shaft tolerances and resultant fits

Shaft tolerances and resultant fits

Shaft
Nominal

diameter
Bearing
Bore diameter

tolerance
Shaft diameter deviations, resultant fits1)
Tolerance classes
d tΔdmp r6+IT6 r7+IT7
Deviations (shaft diameter)
Theoretical interference (–)
over incl. low high Probable interference (–)
mm µm µm
315 355 –40 0 +180 +144 +222 +165
–220 –144 –262 –165
–209 –155 –248 –179
355 400 –40 0 +186 +150 +228 +171
–226 –150 –268 –171
–215 –161 –254 –185
400 450 –45 0 +206 +166 +252 +189
–251 –166 –297 –189
–239 –178 –282 –204
450 500 –45 0 +212 +172 +258 +195
–257 –172 –303 –195
–245 –184 –288 –210
500 560 –50 0 +238 +194 +290 +220
–288 –194 –340 –220
–274 –208 –323 –237
560 630 –50 0 +243 +199 +295 +225
–293 –199 –345 –225
–279 –213 –328 –242
630 710 –75 0 +275 +225 +335 +255
–350 –225 –410 –255
–333 –242 –387 –278
710 800 –75 0 +285 +235 +345 +265
–360 –235 –420 –265
–343 –252 –397 –288
800 900 –100 0 +322 +266 +390 +300
–422 –266 –490 –300
–401 –287 –462 –328
900 1 000 –100 0 +332 +276 +400 +310
–432 –276 –500 –310
–411 –297 –472 –338
1 000 1 120 –125 0 +382 +316 +460 +355
–507 –316 –585 –355
–482 –341 –552 –388
1 120 1 250 –125 0 +392 +326 +470 +365
–517 –326 –595 –365
–492 –351 –562 –398
1 250 1 400 –160 0 +456 +378 +550 +425
–616 –378 –710 –425
–586 –408 –669 –466
1 400 1 600 –160 0 +486 +408 +580 +455
–646 –408 –740 –455
–616 –438 –699 –496
1 600 1 800 –200 0 +554 +462 +670 +520
–754 –462 –870 –520
–718 –498 –820 –570
1 800 2 000 –200 0 +584 +492 +700 +550
–784 –492 –900 –550
–748 –528 –850 –600
  1. 1)
    Values are valid for most bearings with Normal tolerances. For exceptions, refer to Tolerances and resultant fits.

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