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Radial Bearings (0 Class) Tolerance and Tolerance Values (Excerpt from JIS B 1514-1:2017)

Inner ring
Outer ring
Flange outer diameter

Inner ring

Unit: μm

ｄ (mm)		t△dmp		tVdsp			tVdmp	tKia	t△Bs				tVBs
ｄ (mm)		t△dmp		Diameter series					Starter bearing		Matched bearing⁽¹⁾
Exceeds	or below	U	L	9	0, 1	2, 3, 4			U	L	U	L
-	0.6	0	-8	10	8	6	6	10	0	-40	-	-	12
0.6	2.5	0	-8	10	8	6	6	10	0	-40	-	-	12
2.5	10	0	-8	10	8	6	6	10	0	-120	0	-250	15
10	18	0	-8	10	8	6	6	10	0	-120	0	-250	20
18	30	0	-10	13	10	8	8	13	0	-120	0	-250	20
30	50	0	-12	15	12	9	9	15	0	-120	0	-250	20
50	80	0	?15	19	19	11	11	20	0	-150	0	-380	25
80	120	0	-20	25	25	15	15	25	0	-200	0	-380	25
120	180	0	-25	31	31	19	19	30	0	-250	0	-500	30
180	250	0	-30	38	38	23	23	40	0	-300	0	-500	30
250	315	0	-35	44	44	26	26	50	0	-350	0	-500	35
315	400	0	-40	50	50	30	30	60	0	-400	0	-630	40
400	500	0	-45	56	56	34	34	65	0	-450	-	-	50
500	630	0	-50	63	63	38	38	70	0	-500	-	-	60
630	800	0	-75	-	-	-	-	80	0	-750	-	-	70
800	1000	0	-100	-	-	-	-	90	0	-1000	-	-	80
1000	1250	0	-125	-	-	-	-	100	0	-1250	-	-	100
1250	1600	0	-160	-	-	-	-	120	0	-1600	-	-	120
1600	2000	0	-200	-	-	-	-	140	0	-2000	-	-	140

Notes

⁽¹⁾ Compatible with individual inner rings produced as match bearings. Also compatible with inner rings with D≧50mm tapered holes.
t△dmp

: (cylindrical hole) Dimensional tolerance between the intermediate size of the inner diameter (from two measuring points) and nominal dimension in an arbitrary cross section

tVdsp

: Tolerance (size of range) between the maximum and minimum values of the intermediate size of the inner diameter (from two measuring points) in an arbitrary cross section of a cylindrical or tapered hole

tVdmp

: Tolerance (size of range) between the maximum and minimum values of the intermediate size of the inner diameter (from two measuring points) in multiple arbitrary cross sections of a cylindrical hole

t△Bs

: (symmetrical system bearing ring) The size between two points of the inner ring width, and dimensional tolerance between nominal dimensions

tVBs

: (symmetrical system bearing ring) The size between two points of the inner ring width, and tolerance (size of range) between maximum and minimum values

tKia

: Radial runout of the inner diameter of the inner ring of the bearing assembly against the datum side of the linear shaft derived from the outer diameter of the outer ring

Outer ring

Unit: μm

D (mm)		t△Dmp		tVDsp⁽²⁾				tVDmp⁽²⁾	tKea	t△Cs t△C1s⁽³⁾
				Open type			Sealed bearing Shield bearing
				Diameter series
Exceeds	or below	U	L	9	0, 1	2, 3, 4	2, 3, 4			U	L
−	2.5	0	−8	10	8	6	10	6	15	Depends on the tolerance value of t△Bs and tVBs against the same bearing diameter
2.5	6	0	−8	10	8	6	10	6	15
6	18	0	−8	10	8	6	10	6	15
18	30	0	−9	12	9	7	12	7	15
30	50	0	−11	14	11	8	16	8	20
50	80	0	−13	16	13	10	20	10	25
80	120	0	−15	19	19	11	26	11	35
120	150	0	−18	23	23	14	30	14	40
150	180	0	−25	31	31	19	38	19	45
180	250	0	−30	38	38	23	−	23	50
250	315	0	−35	44	44	26	−	26	60
315	400	0	−40	50	50	30	−	30	70
400	500	0	−45	56	56	34	−	34	80
500	630	0	−50	63	63	38	−	38	100
630	800	0	−75	94	94	55	−	55	120
800	1000	0	−100	125	125	75	−	75	140
1000	1250	0	−125	−	−	−	−	−	160
1250	1600	0	−160	−	−	−	−	−	190
1600	2000	0	−200	−	−	−	−	−	220
2000	2500	0	−250	−	−	−	−	−	250

Notes

⁽²⁾ Compatible when using without a retaining ring.
⁽³⁾ Compatible with groove ball bearings such as deep groove ball bearings and angular ball bearings.
t△Dmp

: Dimensional tolerance between the intermediate size of the outer diameter (from two measuring points) and nominal dimension in an arbitrary cross section

tVDsp

: Tolerance (size of range) between the maximum and minimum values of the intermediate size of the outer diameter between two points in an arbitrary cross section

tVDmp

: Tolerance (size of range) between the maximum and minimum values of the intermediate size of the outer diameter (from two measuring points) in multiple arbitrary cross sections

t△Cs

: (symmetrical type bearing ring) The size between two points of the outer ring width, and dimensional tolerance between nominal dimensions

tVCs

: (symmetrical type bearing ring) The size between two points of the outer ring width, and tolerance (size of range) between maximum and minimum values

tKea

: Radial runout of the outer diameter of the outer ring of the bearing assembly against the datum side of the linear shaft derived from the inner diameter of the inner ring

Flange outer diameter

Unit: μm

D1 (mm)		t△D1s (Non-positioning flange)		t△C1s		tVC1s
Exceeds	or below	U	L	U	L	tVC1s
−	6	+220	-36	Depends on the tolerance value of t△Bs and tVBs against the same bearing diameter.
6	10	+220	-36
10	18	+270	-43
18	30	+330	-52
30	50	+390	-62
50	80	+460	-74
80	120	+540	-87
120	180	+630	-100
180	250	+720	-115
250	315	+810	-130
315	400	+890	-140
400	500	+970	-155
500	630	+1100	-175
630	800	+1250	-200
800	1000	+1400	-230
1000	1250	+1650	-260
1250	1600	+1950	-310
1600	2000	+2300	-370
2000	2500	+2800	-440

Notes

t△D1s

: The size between two points of the flange outer diameter on the outer ring, and dimensional tolerance between nominal dimensions

t△C1s

: The size between two points of the flange width on the outer ring, and dimensional tolerance between nominal dimensions

tVC1s

: The size between two points of the flange width on the outer ring, and tolerance between maximum and minimum values