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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		t_Δdmp		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) Values are valid for most bearings with Normal tolerances. For exceptions, refer to Tolerances and resultant fits.

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