BEARING INDUSTRIA CUSCINETTI S.P.A.

Self-aligning ball bearings

Self-aligning ball bearings have two rows of balls, a common sphered raceway in the outer ring and two deep uninterrupted raceway grooves in the inner ring. They are available open or sealed. The bearings are insensitive to angular misalignment of the shaft relative to the housing  which can be caused, for example, by shaft deflection

This type of ball bearing is recommended when alignment of the shaft and housing is difficult and the shaft may flex. The outer ring has a spherical raceway and its center of curvature coincides with that of the bearing; therefore, the axis of the inner ring, balls and cage can deflect to some extent around the bearing center. Pressed steel cages are usually used. Since the contact angle is small, the axial load capacity is low. The permissible dynamic misalignment is approximately 0.07 to 0.12 radian (4 to 7 degrees) under normal loads.
 

55 mm x 120 mm x 29 mm skf 1311 EKTN9 Self-aligning ball bearings
CX433
5332
17 mm x 47 mm x 14 mm skf 1303 EM Self-aligning ball bearings
0.064 kN
SKF
25 mm x 62 mm x 24 mm skf 2305 ETN9 Self-aligning ball bearings
111,125
25 mm x 62 mm x 24 mm
20 mm x 52 mm x 21 mm skf 2304 TN9 Self-aligning ball bearings
79315 lbf
4 x 3/4
25 mm x 62 mm x 20 mm skf 2206 E-2RS1KTN9 + H 306 E Self-aligning ball bearings
140
25 mm x 62 mm x 20 mm
20 mm x 52 mm x 21 mm skf 2304 M Self-aligning ball bearings
1.47
METRIC
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Self-aligning ball bearings
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