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Housing tolerances and resultant fits

Housing tolerances and resultant fits

Housing Nominal bore diameter		Bearing Outside diameter tolerance		Housing bore diameter deviations, resultant fits¹⁾ Tolerance classes
D		t_ΔDmp		H7Ⓔ		H8Ⓔ		H9Ⓔ		H10Ⓔ		J6Ⓔ
				Deviations (housing bore diameter)
				Theoretical interference (–)/clearance (+)
over	incl.	low	high	Probable interference (–)/clearance (+)
mm		µm		µm

6	10	0	–8	0	+15	0	+22	0	+36	0	+58	–4	+5
				0	+23	0	+30	0	+44	0	+66	–4	+13
				+3	+20	+3	+27	+3	+41	+3	+63	–2	+11

10	18	0	–8	0	+18	0	+27	0	+43	0	+70	–5	+6
				0	+26	0	+35	0	+51	0	+78	–5	+14
				+3	+23	+3	+32	+3	+48	+3	+75	–3	+12

18	30	0	–9	0	+21	0	+33	0	+52	0	+84	–5	+8
				0	+30	0	+42	0	+61	0	+93	–5	+17
				+3	+27	+3	+39	+4	+57	+4	+89	–2	+14

30	50	0	–11	0	+25	0	+39	0	+62	0	+100	–6	+10
				0	+36	0	+50	0	+73	0	+111	–6	+21
				+4	+32	+4	+46	+5	+68	+5	+106	–3	+18

50	80	0	–13	0	+30	0	+46	0	+74	0	+120	–6	+13
				0	+43	0	+59	0	+87	0	+133	–6	+26
				+5	+38	+5	+54	+5	+82	+6	+127	–2	+22

80	120	0	–15	0	+35	0	+54	0	+87	0	+140	–6	+16
				0	+50	0	+69	0	+102	0	+155	–6	+31
				+5	+45	+6	+63	+6	+96	+7	+148	–1	+26

120	150	0	–18	0	+40	0	+63	0	+100	0	+160	–7	+18
				0	+58	0	+81	0	+118	0	+178	–7	+36
				+7	+51	+7	+74	+8	+110	+8	+170	–1	+30

150	180	0	–25	0	+40	0	+63	0	+100	0	+160	–7	+18
				0	+65	0	+88	0	+125	0	+185	–7	+43
				+8	+57	+10	+78	+10	+115	+11	+174	0	+36

180	250	0	–30	0	+46	0	+72	0	+115	0	+185	–7	+22
				0	+76	0	+102	0	+145	0	+215	–7	+52
				+10	+66	+12	+90	+13	+132	+13	+202	+1	+44

250	315	0	–35	0	+52	0	+81	0	+130	0	+210	–7	+25
				0	+87	0	+116	0	+165	0	+245	–7	+60
				+12	+75	+13	+103	+15	+150	+16	+229	+2	+51

315	400	0	–40	0	+57	0	+89	0	+140	0	+230	–7	+29
				0	+97	0	+129	0	+180	0	+270	–7	+69
				+13	+84	+15	+114	+17	+163	+18	+252	+4	+58

400	500	0	–45	0	+63	0	+97	0	+155	0	+250	–7	+33
				0	+108	0	+142	0	+200	0	+295	–7	+78
				+15	+93	+17	+125	+19	+181	+20	+275	+5	+66

500	630	0	–50	0	+70	0	+110	0	+175	0	+280	–	–
				0	+120	0	+160	0	+225	0	+330	–	–
				+16	+104	+19	+141	+21	+204	+22	+308	–	–

630	800	0	–75	0	+80	0	+125	0	+200	0	+320	–	–
				0	+155	0	+200	0	+275	0	+395	–	–
				+22	+133	+27	+173	+30	+245	+33	+362	–	–

800	1 000	0	–100	0	+90	0	+140	0	+230	0	+360	–	–
				0	+190	0	+240	0	+330	0	+460	–	–
				+27	+163	+33	+207	+39	+291	+43	+417	–	–

1 000	1 250	0	–125	0	+105	0	+165	0	+260	0	+420	–	–
				0	+230	0	+290	0	+385	0	+545	–	–
				+33	+197	+41	+249	+48	+337	+53	+492	–	–

1 250	1 600	0	–160	0	+125	0	+195	0	+310	0	+500	–	–
				0	+285	0	+355	0	+470	0	+660	–	–
				+40	+245	+51	+304	+60	+410	+67	+593	–	–

1 600	2 000	0	–200	0	+150	0	+230	0	+370	0	+600	–	–
				0	+350	0	+430	0	+570	0	+800	–	–
				+50	+300	+62	+368	+74	+496	+83	+717	–	–

2 000	2 500	0	–250	0	+175	0	+280	0	+440	0	+700	–	–
				0	+425	0	+530	0	+690	0	+950	–	–
				+59	+366	+77	+453	+91	+599	+103	+847	–	–

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

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