NTE Bearing Tolerances — ISO, JIS and DIN Classes

Bearing tolerances are the permissible deviations in dimensions and ring runout, and the ISO tolerance class – from Normal (P0) to the highest, P2 – sets how tight these limits are. Depending on the type, NTE offers bearings in classes from Normal to P2 and gives their JIS, DIN and ABMA equivalents along with the deviation limits for bore diameter and ring width.

Bearings without a class suffix are made to Normal class (P0). To order a higher class, add its suffix, e.g. 6205 P6.

Bearing tolerance classes

Types of Bearings	Tolerance Classes
Deep Groove Ball Bearings	Normal	Class 6	Class 5	Class 4	Class 2
Angular Contact Ball Bearings	Normal	Class 6	Class 5	Class 4	Class 2
Self-aligning Ball Bearings	Normal	Class 6	Class 5	–	–
Cylindrical Roller Bearings	Normal	Class 6	Class 5	Class 4	Class 2
Solid Type Needle Roller Bearings	Normal	Class 6	Class 5	Class 4	–
Spherical Roller Bearings	Normal	Class 6	Class 5	–	–
Thrust Ball Bearings	Normal	Class 6	Class 5	Class 4	–
Spherical Thrust Roller Bearings	Normal	–	–	–	–
Metric-design Tapered Roller Bearings	Normal Class 6X	–	Class 5	Class 4	–
Inch-design Tapered Roller Bearings	ABMA CLASS 4	ABMA CLASS 2	ABMA CLASS 3	ABMA CLASS 0	ABMA CLASS 00

Class equivalents

Standard	Tolerance Classes
JIS B1514 — Japanese Industrial Standard	Class 0	Class 6	Class 5	Class 4	Class 2
DIN 620 (Deutsches Institut für Normung) — German Institute for Standardization	P0	P6	P5	P4	P2
ABMA — Ball Bearings	ABEC 1	ABEC 3	ABEC 5 (CLASS 5P)	ABEC 7 (CLASS 7P)	ABEC 9 (CLASS 9P)
ABMA — Roller Bearings	RBEC 1	RBEC 3	RBEC 5	–	–
ABMA — Tapered Roller Bearings	CLASS 4	CLASS 2	CLASS 3	CLASS 0	CLASS 00

ABMA — American Bearing Manufacturers Association.

Bearing tolerance symbols

Symbol	Meaning
d	Nominal bearing bore diameter
Δ_ds	Deviation of single bore diameter
Δ_dm	Deviation of mean bore diameter in a single plane
V_dp	Variation of mean bore diameter in a single plane
V_dmp	Variation of mean bore diameter
B	Nominal inner ring width
Δ_Bs	Deviation of single ring width
V_Bs	Variation of single ring width
K_ia	Radial runout of inner ring of assembled bearing
S_d	Runout of inner ring face to the bore
S_ia	Axial runout of end face to inner ring raceway of assembled bearing
S_i / S_e	Variation of washer thickness of (shaft / housing) locating washers
T	Nominal bearing height of a single direction axial bearing
D	Nominal bearing outer diameter
Δ_Ds	Deviation of single outer diameter
Δ_Dmp	Deviation of mean outer diameter in a single plane
V_Dp	Variation of single outer diameter in a single plane
V_Dmp	Variation of mean outer diameter
C	Nominal outer ring width
Δ_Cs	Deviation of single outer ring width
V_Cs	Variation of outer ring width
K_ea	Radial runout of outer ring of assembled bearing
S_D	Runout of outer ring outside surface generatrix to the face
S_ea	Axial runout of end face to outer ring raceway of assembled bearing

Deviation of mean bore diameter Δ_dmp

Units: µm.

d over, mm	d incl., mm	Normal		Class 6		Class 5		Class 4		Class 2
d over, mm	d incl., mm	High	Low	High	Low	High	Low	High	Low	High	Low
0.6	2.5	0	−8	0	−7	0	−5	0	−4	0	−2.5
2.5	10	0	−8	0	−7	0	−5	0	−4	0	−2.5
10	18	0	−8	0	−7	0	−5	0	−4	0	−2.5
18	30	0	−10	0	−8	0	−6	0	−5	0	−2.5
30	50	0	−12	0	−10	0	−8	0	−6	0	−2.5
50	80	0	−15	0	−12	0	−9	0	−7	0	−4
80	120	0	−20	0	−15	0	−10	0	−8	0	−5
120	150	0	−25	0	−18	0	−13	0	−10	0	−7
150	180	0	−25	0	−18	0	−13	0	−10	0	−7
180	250	0	−30	0	−22	0	−15	0	−12	0	−8
250	315	0	−35	0	−25	0	−18	–	–	–	–
315	400	0	−40	0	−30	0	−23	–	–	–	–
400	500	0	−45	0	−35	–	–	–	–	–	–
500	630	0	−50	0	−40	–	–	–	–	–	–
630	800	0	−75	–	–	–	–	–	–	–	–
800	1,000	0	−100	–	–	–	–	–	–	–	–
1,000	1,250	0	−125	–	–	–	–	–	–	–	–
1,250	1,600	0	−160	–	–	–	–	–	–	–	–
1,600	2,000	0	−200	–	–	–	–	–	–	–	–

Variation of mean bore diameter V_dmp and deviation of ring width Δ_Bs, Δ_Cs

Units: µm.

d over, mm	d incl., mm	V_dmp Max					Single Bearing						Combined Bearings
		V_dmp Max					Normal / Class 6		Class 5 / Class 4		Class 2		Normal / Class 6		Class 5 / Class 4		Class 2
		Normal	Class 6	Class 5	Class 4	Class 2	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low
0.6	2.5	6	5	3	2	1.5	0	−40	0	−40	0	−40	–	–	0	−250	0	−250
2.5	10	6	5	3	2	1.5	0	−120	0	−40	0	−40	0	−250	0	−250	0	−250
10	18	6	5	3	2	1.5	0	−120	0	−80	0	−80	0	−250	0	−250	0	−250
18	30	8	6	3	2.5	1.5	0	−120	0	−120	0	−120	0	−250	0	−250	0	−250
30	50	9	8	4	3	1.5	0	−120	0	−120	0	−120	0	−250	0	−250	0	−250
50	80	11	9	5	3.5	2	0	−150	0	−150	0	−150	0	−380	0	−250	0	−250
80	120	15	11	5	4	2.5	0	−200	0	−200	0	−380	0	−380	0	−380	0	−380
120	150	19	14	7	5	3.5	0	−250	0	−250	0	−250	0	−500	0	−380	0	−380
150	180	19	14	7	5	3.5	0	−250	0	−250	0	−250	0	−500	0	−380	0	−380
180	250	23	17	8	6	4	0	−300	0	−300	0	−300	0	−500	0	−500	0	−500
250	315	26	19	9	–	–	0	−350	0	−350	–	–	0	−500	0	−500	–	–
315	400	30	23	12	–	–	0	−400	0	−400	–	–	0	−630	0	−630	–	–
400	500	34	26	–	–	–	0	−450	–	–	–	–	–	–	–	–	–	–
500	630	38	30	–	–	–	0	−500	–	–	–	–	–	–	–	–	–	–
630	800	–	–	–	–	–	0	−750	–	–	–	–	–	–	–	–	–	–
800	1,000	–	–	–	–	–	0	−1,000	–	–	–	–	–	–	–	–	–	–
1,000	1,250	–	–	–	–	–	0	−1,250	–	–	–	–	–	–	–	–	–	–
1,250	1,600	–	–	–	–	–	0	−1,600	–	–	–	–	–	–	–	–	–	–
1,600	2,000	–	–	–	–	–	0	−2,000	–	–	–	–	–	–	–	–	–	–

Shaft diameter tolerances

Units: µm. In each size range the upper deviation stands over the lower one.

d over, mm	d incl., mm	Δ_dmp	d6	e6	f6	g5	g6	h5	h6	h7	h8	h9	h10	js5	js6	j5	j6	j7	k5	k6	k7	m5	m6	n6	p6
3	6	0	−30	−20	−10	−4	−4	0	0	0	0	0	0	±2.5	±4.0	+3	+6	+8	+6	+9	+13	+9	+12	+16	+20
3	6	−8	−38	−28	−18	−9	−12	−5	−8	−12	−18	−30	−48	±2.5	±4.0	−2	−2	−4	+1	+1	+1	+4	+4	+8	+12
6	10	0	−40	−25	−13	−5	−5	0	0	0	0	0	0	±3.0	±4.5	+4	+7	+10	+7	+10	+16	+12	+15	+19	+24
6	10	−8	−49	−34	−22	−11	−14	−6	−9	−15	−22	−36	−58	±3.0	±4.5	−2	−2	−5	+1	+1	+1	+6	+6	+10	+15
10	18	0	−50	−32	−16	−6	−6	0	0	0	0	0	0	±4.0	±5.5	+5	+8	+12	+9	+12	+19	+15	+18	+23	+29
10	18	−8	−61	−43	−27	−14	−17	−8	−11	−18	−27	−43	−70	±4.0	±5.5	−3	−3	−6	+1	+1	+1	+7	+7	+12	+18
18	30	0	−65	−40	−20	−7	−7	0	0	0	0	0	0	±4.5	±6.5	+5	+9	+13	+11	+15	+23	+17	+21	+28	+35
18	30	−10	−78	−53	−33	−16	−20	−9	−13	−21	−33	−52	−84	±4.5	±6.5	−4	−4	−8	+2	+2	+2	+8	+8	+15	+22
30	50	0	−80	−50	−25	−9	−9	0	0	0	0	0	0	±5.5	±8.0	+6	+11	+15	+13	+18	+27	+20	+25	+33	+42
30	50	−12	−96	−66	−41	−20	−25	−11	−16	−25	−39	−62	−100	±5.5	±8.0	−5	−5	−10	+2	+2	+2	+9	+9	+17	+26
50	80	0	−100	−60	−30	−10	−10	0	0	0	0	0	0	±6.5	±9.5	+6	+12	+18	+15	+21	+32	+24	+30	+39	+51
50	80	−15	−119	−79	−49	−23	−29	−13	−19	−30	−46	−74	−120	±6.5	±9.5	−7	−7	−12	+2	+2	+2	+11	+11	+20	+32
80	120	0	−120	−72	−36	−12	−12	0	0	0	0	0	0	±7.5	±11.0	+6	+13	+20	+18	+25	+38	+28	+35	+45	+59
80	120	−20	−142	−94	−58	−27	−34	−15	−22	−35	−54	−87	−140	±7.5	±11.0	−9	−9	−15	+3	+3	+3	+13	+13	+23	+37
120	180	0	−145	−85	−43	−14	−14	0	0	0	0	0	0	±9.0	±12.5	+7	+14	+22	+21	+28	+43	+33	+40	+52	+68
120	180	−25	−170	−110	−68	−32	−39	−18	−25	−40	−63	−100	−160	±9.0	±12.5	−11	−11	−18	+3	+3	+3	+15	+15	+27	+43
180	250	0	−170	−100	−50	−15	−15	0	0	0	0	0	0	±10.0	±14.5	+7	+16	+25	+24	+33	+50	+37	+46	+60	+79
180	250	−30	−199	−129	−79	−35	−44	−20	−29	−46	−72	−115	−185	±10.0	±14.5	−13	−13	−21	+4	+4	+4	+17	+17	+31	+50
250	315	0	−190	−110	−56	−17	−17	0	0	0	0	0	0	±11.5	±16.0	+7	±16	±26	+27	+36	+56	+43	+52	+66	+88
250	315	−35	−222	−142	−88	−40	−49	−23	−32	−52	−81	−130	−210	±11.5	±16.0	−16	±16	±26	+4	+4	+4	+20	+20	+34	+56
315	400	0	−210	−125	−62	−18	−18	0	0	0	0	0	0	±12.5	±18.0	+7	±18	+29	+29	+40	+61	+46	+57	+73	+98
315	400	−40	−246	−161	−98	−43	−54	−25	−36	−57	−89	−140	−230	±12.5	±18.0	−18	±18	−28	+4	+4	+4	+21	+21	+37	+62
400	500	0	−230	−135	−68	−20	−20	0	0	0	0	0	0	±13.5	±20.0	+7	±20	+31	+32	+45	+68	+50	+63	+80	+108
400	500	−45	−270	−175	−108	−47	−60	−27	−40	−63	−97	−155	−250	±13.5	±20.0	−20	±20	−32	+5	+5	+5	+23	+23	+40	+68
500	630	0	−260	−145	−76	–	−22	–	0	0	0	0	0	–	±22.0	–	–	–	–	+44	+70	–	+70	+88	+122
500	630	−50	−304	−189	−120	–	−66	–	−44	−70	−110	−175	−280	–	±22.0	–	–	–	–	0	0	–	+26	+44	+78
630	800	0	−290	−160	−80	–	−24	–	0	0	0	0	0	–	±25.0	–	–	–	–	+50	+80	–	+80	+100	+138
630	800	−75	−340	−210	−130	–	−74	–	−50	−80	−125	−200	−320	–	±25.0	–	–	–	–	0	0	–	+30	+50	+88
800	1,000	0	−320	−170	−86	–	−26	–	0	0	0	0	0	–	±28.0	–	–	–	–	+56	+90	–	+90	+112	+156
800	1,000	−100	−376	−226	−142	–	−82	–	−56	−90	−140	−230	−360	–	±28.0	–	–	–	–	0	0	–	+34	+56	+100
1,000	1,250	0	−350	−195	−98	–	−28	–	0	0	0	0	0	–	±33.0	–	–	–	–	+66	+105	–	+106	+132	+186
1,000	1,250	−125	−416	−261	−164	–	−94	–	−66	−105	−165	−260	−420	–	±33.0	–	–	–	–	0	0	–	+40	+66	+120
1,250	1,600	0	−390	−220	−110	–	−30	–	0	0	0	0	0	–	±39.0	–	–	–	–	+78	+125	–	+126	+156	+218
1,250	1,600	−160	−468	−298	−188	–	−108	–	−78	−125	−195	−310	−500	–	±39.0	–	–	–	–	0	0	–	+48	+78	+140
1,600	2,000	0	−430	−240	−120	–	−32	–	0	0	0	0	0	–	±46.0	–	–	–	–	+92	+150	–	+150	+184	+262
1,600	2,000	−200	−522	−332	−212	–	−124	–	−92	−150	−230	−370	−600	–	±46.0	–	–	–	–	0	0	–	+58	+92	+170

Housing bore diameter tolerances

Units: µm. In each size range the upper deviation stands over the lower one.

D over, mm	D incl., mm	Δ_Dmp	E6	F6	F7	G6	G7	H6	H7	H8	J6	J7	JS6	JS7	K5	K6	K7	M5	M6	M7	N5	N6	N7	P6	P7
10	18	0	+43	+27	+34	+17	+24	+11	+18	+27	+6	+10	±5.5	±9	+2	+2	+6	−4	−4	0	−9	−9	−5	−15	−11
10	18	−8	+32	+16	+16	+6	+6	0	0	0	−5	−8	±5.5	±9	−6	−9	−12	−12	−15	−18	−17	−20	−23	−26	−29
18	30	0	+53	+33	+41	+20	+28	+13	+21	+33	+8	+12	±6.5	±10.5	+1	+2	+6	−5	−4	0	−12	−11	−7	−18	−14
18	30	−9	+40	+20	+20	+7	+7	0	0	0	−5	−9	±6.5	±10.5	−8	−11	−15	−14	−17	−21	−21	−24	−28	−31	−35
30	50	0	+66	+41	+50	+25	+34	+16	+25	+39	+10	+14	±8	±12.5	+2	+3	+7	−5	−4	0	−13	−12	−8	−21	−17
30	50	−11	+50	+25	+25	+9	+9	0	0	0	−6	−11	±8	±12.5	−9	−13	−18	−16	−20	−25	−24	−28	−33	−37	−42
50	80	0	+79	+49	+60	+29	+40	+19	+30	+46	+13	+18	±9.5	±15	+3	+4	+9	−6	−5	0	−15	−14	−9	−26	−21
50	80	−13	+60	+30	+30	+10	+10	0	0	0	−6	−12	±9.5	±15	−10	−15	−21	−19	−24	−30	−28	−33	−39	−45	−51
80	120	0	+94	+58	+71	+34	+47	+22	+35	+54	+16	+22	±11	±17.5	+2	+4	+10	−8	−6	0	−18	−16	−10	−30	−24
80	120	−15	+72	+36	+36	+12	+12	0	0	0	−6	−13	±11	±17.5	−13	−18	−25	−23	−28	−35	−33	−38	−45	−52	−59
120	150	0	+110	+68	+83	+39	+54	+25	+40	+63	+18	+26	±12.5	±20	+3	+4	+12	−9	−8	0	−21	−20	−12	−36	−28
120	150	−18	+85	+43	+43	+14	+14	0	0	0	−7	−14	±12.5	±20	−15	−21	−28	−27	−33	−40	−39	−45	−52	−61	−68
150	180	0	+110	+68	+83	+39	+54	+25	+40	+63	+18	+26	±12.5	±20	+3	+4	+12	−9	−8	0	−21	−20	−12	−36	−28
150	180	−25	+85	+43	+43	+14	+14	0	0	0	−7	−14	±12.5	±20	−15	−21	−28	−27	−33	−40	−39	−45	−52	−61	−68
180	250	0	+129	+79	+96	+44	+61	+29	+46	+72	+22	+30	±14.5	±23	+2	+5	+13	−11	−8	0	−25	−22	−14	−41	−33
180	250	−30	+100	+50	+50	+15	+15	0	0	0	−7	−16	±14.5	±23	−18	−24	−33	−31	−37	−46	−45	−51	−60	−70	−79
250	315	0	+142	+88	+108	+49	+69	+32	+52	+81	+25	+36	±16	±26	+3	+5	+16	−13	−9	0	−27	−25	−14	−47	−36
250	315	−35	+110	+56	+56	+17	+17	0	0	0	−7	−16	±16	±26	−20	−27	−36	−36	−41	−52	−50	−57	−66	−79	−88
315	400	0	+161	+98	+119	+54	+75	+36	+57	+89	+29	+39	±18	±28.5	+3	+7	+17	−14	−10	0	−30	−26	−16	−51	−41
315	400	−40	+125	+62	+62	+18	+18	0	0	0	−7	−18	±18	±28.5	−22	−29	−40	−39	−46	−57	−55	−62	−73	−87	−98
400	500	0	+175	+108	+131	+60	+83	+40	+63	+97	+33	+43	±20	±31.5	+2	+8	+18	−16	−10	0	−33	−27	−17	−55	−45
400	500	−45	+135	+68	+68	+20	+20	0	0	0	−7	−20	±20	±31.5	−25	−32	−45	−43	−50	−63	−60	−67	−80	−95	−108
500	630	0	+189	+120	+146	+66	+92	+44	+70	+110	–	–	±22	±35	–	0	0	–	−26	−26	–	−44	−44	−78	−78
500	630	−50	+145	+76	+76	+22	+22	0	0	0	–	–	±22	±35	–	−44	−70	–	−70	−96	–	−88	−114	−122	−148
630	800	0	+210	+130	+160	+74	+104	+50	+80	+125	–	–	±25	±40	–	0	0	–	−30	−30	–	−50	−50	−88	−88
630	800	−75	+160	+80	+80	+24	+24	0	0	0	–	–	±25	±40	–	−50	−80	–	−80	−110	–	−100	−130	−138	−168
800	1,000	0	+226	+142	+176	+82	+116	+56	+90	+140	–	–	±28	±45	–	0	0	–	−34	−34	–	−56	−56	−100	−100
800	1,000	−100	+170	+86	+86	+26	+26	0	0	0	–	–	±28	±45	–	−56	−90	–	−90	−124	–	−112	−146	−156	−190
1,000	1,250	0	+261	+164	+203	+94	+133	+66	+105	+165	–	–	±33	±52.5	–	0	0	–	−40	−40	–	−66	−66	−120	−120
1,000	1,250	−125	+195	+98	+98	+28	+28	0	0	0	–	–	±33	±52.5	–	−66	−105	–	−106	−145	–	−132	−171	−186	−225
1,250	1,600	0	+298	+188	+235	+108	+155	+78	+125	+195	–	–	±39	±62.5	–	0	0	–	−48	−48	–	−78	−78	−140	−140
1,250	1,600	−160	+220	+110	+110	+30	+30	0	0	0	–	–	±39	±62.5	–	−78	−125	–	−126	−173	–	−156	−203	−218	−265
1,600	2,000	0	+332	+212	+270	+124	+182	+92	+150	+230	–	–	±46	±75	–	0	0	–	−58	−58	–	−92	−92	−170	−170
1,600	2,000	−200	+240	+120	+120	+32	+32	0	0	0	–	–	±46	±75	–	−92	−150	–	−150	−208	–	−184	−242	−262	−320
2,000	2,500	0	+370	+240	+305	+144	+209	+110	+175	+280	–	–	±55	±87.5	–	0	0	–	−68	−68	–	−110	−110	−195	−195
2,000	2,500	−250	+260	+130	+130	+34	+34	0	0	0	–	–	±55	±87.5	–	−110	−175	–	−178	−243	–	−220	−285	−305	−370

Bearing runout

Radial and axial runout limits are available on request. Enter the bearing designation with its tolerance class, e.g. 6205 P6, in the contact form.

Find a bearing by designation or by size (d, D, B) in the NTE bearing catalogue.