Internal radial clearance of electrical motor bearings

Unit:um

For deep groove ball bearings

Bore Radial clearance
d mm CM
over to min. max.
10 18 4 11
18 30 5 12
30 50 9 17
50 80 12 22
80 120 18 30
120 160 24 38

Remarks:

1.The correction due to testing load shall be save as normal deep groove ball bearings.


For Cylindrical roller bearings

Bore Radial clearance
d mm CT CM
over to min. max. min. max.
24 40 15 35 15 30
40 50 20 40 20 35
50 65 25 45 25 40
65 80 30 50 30 45
80 100 35 60 35 55
100 120 35 65 35 60
120 140 40 70 40 65
140 160 50 85 50 80
160 180 60 95 60 90
180 200 65 105 65 100

Remarks:

1."CT" is for the bearing interchangeable by the save manufacturer

2."CM" is for the bearing not interchangeable by the same manufacturer