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The radial clearances of YJ deep groove ball bearings are according with National Standard of P. R of China: GB4604-93 which is adopted from ISO5753-1991 equivalently, dividing into five groups as shown in the following table.

Bore diametor d mm	Group2		Normal Group		Group3		Group4		Group5
over to	min	max	min	max	min	max	min	max	min	max
2.5 6	0	7	2	13	8	23	-	-	-	-
6 10	0	7	2	13	8	23	14	29	20	37
10 18	0	9	3	18	11	25	18	33	25	45
18 24	0	10	5	20	13	28	20	36	20	48
24 30	1	11	5	20	13	28	23	41	30	53
30 40	1	11	6	20	15	33	28	46	40	46

The radial clearance of YJ deep groove ball bearings is adopted also in the following table.

RADIAL INTERNAL CLEARANCE OF SMALL (D≥9, d≤10)AND MINIATURE (D< 9)BEAR-INGS

Clearance

MC1

MC2

MC3

MC4

MC5

MC6

Clearance

max

min

max

min

max

min

max

min

max

min

max

min

0

5

3

8

5

10

8

13

13

20

20

28

NOTE: STANDARD CLEARANCE IS MC3

RADIAL CLEARANCE OF MOTOR BEARING

Bore Diameter d(mm)	CLEARANCE CM
OVER to	min man
10(inclusion) 18	4 11
18 30	5 12