NTN Bearing de Mexico, S.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 (fig. 1), 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.
However, depending on the surrounding structure, such an angle may not be possible.

CONSOLIDATED BEARING 2209-K C/3 Self Aligning Ball Bearings
35
21420 r/min
CONSOLIDATED BEARING 2208E-2RS Self Aligning Ball Bearings
5,29 Kg
155 kN
CONSOLIDATED BEARING 2209 Self Aligning Ball Bearings
130
1,46 Kg
CONSOLIDATED BEARING 2208E-K 2RS Self Aligning Ball Bearings
Split Cylindrical Re
6.0 in
CONSOLIDATED BEARING 2209 C/2 Self Aligning Ball Bearings
39,2 kN
42 mm
CONSOLIDATED BEARING 2208E-K 2RS C/3 Self Aligning Ball Bearings
0,21
400 r/min
CONSOLIDATED BEARING 2208-2RS Self Aligning Ball Bearings
Round Flange
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