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  • Internal clearance

    Clearance is gap amid bearing inner ring, outer ring, ball package. Bearing has radial clearance and axial clearance.

    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
    (Be limited to)

    -

    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

    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 mark

    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