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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