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The radial celarance of deep groove ball bearings are according with GB4604-93 which is adopted from ISO5753-1991 equivalently, divided into five groups as shown in Table 6.

Extra small and miniature ball bearings also provides radial clearances in six groups as shown in Table 7.
[ 表 6 ]

深沟球轴承半径方向的游隙
轴承内径 d(mm)
 group 2 Standard group group 3 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 28 48
24 30 1 11 5 20 13 28 23 41 30 53
30 40 1 11 6 20 15 33 28 46 40 64
40 50 1 11 6 23 18 36 30 51 45 73


[ 表 7 ]

R超小和微型轴承的游隙

游隙代号 MC1 MC2 MC3 MC4 MC5 MC6
游隙 Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
0 5 3 8 5 10 8 13 13 20 20 28

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