70 of 120
MVA 02 rev 5 - December 2017
8.3
Checking self-aligning ball bearings
Correct fitting is obtained with a tightening angle, axial movement and minimum residual clearance
corresponding to the indications of Chart 8-4.
Self-aligning ball
bearing
Tightening angle
(degrees)*
Axial movement s
(mm)
Minimum residual clearance after fitting
(mm)
Normal clearance
C3 clearance
2207 EK
70
0.30
0.010
0.020
2208 EK
70
0.30
0.010
0.020
2209 EK
80
0.35
0.015
0.025
2210 EK
80
0.35
0.015
0.025
2211 EK
75
0.40
0.015
0.030
2212 EK
75
0.40
0.015
0.030
2213 EK
80
0.40
0.015
0.030
2215 EK
85
0.45
0.020
0.040
2216 EK
85
0.45
0.020
0.040
2217 K
110
0.60
0.020
0.040
2218 K
110
0.60
0.020
0.040
values higher by an average of 15
–20° for C3 bearings
Chart 8-4 Tightening angle, axial movement and minimum residual clearance on ball bearings
Fig. 8-2 Axial movement s
