NSK 1218J Extra Narrow Self-Aligning Ball Bearing

Item #
1218J NSK
NSK 1218J Extra Narrow Self-Aligning Ball Bearing, 90 mm Dia Bore, 160 mm OD, 2 Rows, 30 mm W, 57500 N Dynamic/23500 N Static Load

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.

Important Documents

More Information
Manufacturer NSK
Ball Bearing Type Self-Aligning Ball Bearing
Ball Rows 2 Rows
Bore Diameter 90 mm
Outer Diameter 160 mm
Overall Width 30 mm
Dynamic Load Rating 57500 N
Static Load Rating 23500 N
Search engine powered by ElasticSuite