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E-mail: info@mashiindustries.com
Internal clearance is determined so that appropriate clearance will remain after the bearing is mounted to the shaft with an interference fit. Typical clearance groups for the deep groove ball bearings are C2, CN, C3, C4, and C5. CN(Normal)
C2: less than Normal clearance
C3: more than Normal clearance
C4: more than C3
C5: more than C4
CM: clearance for EMQ Bearings
MC: clearance for Miniature Bearings
Deep groove ball bearing radial clearance
Nominal bearing inner diameter d(mm) | Clearance | ||||||||||
C2 | CN | C3 | C4 | C5 | |||||||
Exceed | Below | Min. | Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | Max. |
10 | – | 0 | 7 | 2 | 13 | 8 | 23 | 14 | 29 | 20 | 37 |
(Be limited to) | |||||||||||
10 | 18 | 0 | 9 | 3 | 18 | 11 | 25 | 18 | 33 | 25 | 45 |
18 | 24 | 0 | 10 | 20 | 5 | 13 | 25 | 20 | 36 | 25 | 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 |
50 | 65 | 1 | 15 | 8 | 28 | 23 | 43 | 38 | 61 | 55 | 60 |
65 | 80 | 1 | 15 | 10 | 30 | 25 | 51 | 46 | 71 | 65 | 105 |
80 | 100 | 1 | 18 | 12 | 36 | 30 | 58 | 53 | 84 | 75 | 120 |
Miniature Bearing’s Internal Radial Clearance
Clearance code | 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 |