Bearing units structure:The outer ring of the self-contained ball bearing in ground to a sphere, and the bore of housing in machined to a matching radius, bearing unit, bearing units This permits self-aligning between the two members. Following figure is a view of a Pillow Black which is the most popular type of Insert Ball Bearing Units with set screw locking.

The bearing units have various types of perfect sealing devices and can operate satisfactorily under hard working conditions, especially for machines operated in dusty or muddy surroundings.

Thus, they are widely used in agricultural machinery, construction machinery, textile machinery, food stuff machinery and conveying devices, etc. bearing unit, bearing units, mounted bearing unit, plummer block, housing unit, bearing insert, insert bearing, pillow block bearing, pillow insert, pillow block

The designations of Y-bearing units are made up of ¨C a prefix for the type and material of the housing,a size identification,a suffix identifying the incorporated bearing,other suffixes identifying other features.