Self-aligning ball bearing

The design of self-aligning ball bearings is based on the fact that the inner ring has two raceways, while the outer ring has a hollow raceway. The centre of this raceway is located on the bearing axis. This design allows the inner ring, the balls as well as the cage to pivot in a certain range around the bearing centre. This design makes it possible to compensate for misalignments of the shaft or housing, as can occur due to errors during installation or due to shaft deflection. Self-aligning ball bearings are often provided with a tapered bore to enable installation with an adapter sleeve.

NSK self-aligning ball bearings - quality that pays off!

NSK self-aligning ball bearings are recommended when the alignment of shaft and housing is problematic and the shaft may deflect.

The outer ring contains a hollow spherical raceway whose centre of curvature coincides with that of the rolling bearing.

This makes them angle-adjustable and thus suitable for compensating angular errors. Self-aligning ball bearings are available with cages made of sheet steel and polyamide .

Due to the low contact angle, the axial load capacity is low. The permissible dynamic misalignment under normal loads is about 0.07 to 0.12 radians(4 to 7 degrees).

Product features and benefits:

High quality steel - extremely pure steel extends the service life of rolling bearings by up to 80%.
Advanced lubrication technology - NSK lubricants for longer lubricant life and higher performance.
High-quality rolling elements - quiet and smooth running, even at high speeds.
Finely machined raceways - specially honed raceways for reduced noise, better lubricant distribution and longer operating life.
Self-aligning ball bearings are available both in open design and with sealing washers .

Compensation of a dynamic offset of up to 7 degrees is permissible.

NSK Rolling Bearings Main Catalogue

NSK Rolling Bearing Main Catalog

NSK self-aligning ball bearing

All NSK Catalogues