Rexnord KAS2203 Self Aligning Pillow Block Bearing

Rexnord KAS2203 Self Aligning Pillow Block Bearing is a two-bolt, cast-iron housing that accepts a 2-3/16 in bore spherical roller bearing and is designed as a floating (expansion) arrangement to accommodate shaft misalignment and mounting tolerances. The self-aligning design tolerates angular misalignment between the shaft and housing, helping protect the bearing and shaft from excessive load when mounting accuracy is uncertain. A single setscrew locking collar fixes the shaft position once aligned, and a single lip light-contact seal provides basic contamination control while preserving lubrication. With a compact footprint, the unit yields a base-to-centerline height of 2-1/2 in, a bolt-center-to-center length of 6-3/4 in, an overall length of 8-5/8 in, and an outside height of 5 in, enabling installation in space-constrained equipment without sacrificing rigidity or load support. This Rexnord component offers reliable shaft support for machinery where installation variability is a consideration, leveraging a robust spherical roller bearing within a durable cast-iron housing.