Pillow Block

A pillow block is a ready-to-mount bearing unit that combines a housed bearing insert with a robust base for easy installation on frames and machine beds. It’s designed to support rotating shafts with reliable alignment and protection, making it a common choice for conveyors, fans, mixers, and general industrial machinery. Pillow blocks simplify maintenance because the insert can often be replaced without changing the whole mounting arrangement.

Key Features

• Easy mounting with bolt-down base (fast installation and replacement)

• Self-aligning capability in many inserts to tolerate minor misalignment

• Sealed options available for dust and moisture protection

• Greaseable designs common for longer service life

• Widely available in standard shaft sizes and housing styles

Common Applications

Conveyors, rollers, agricultural equipment, fans and blowers, pumps, textile machines, packaging lines, mixers, and general power transmission systems.

Selection Notes

Choose by shaft/bore size, housing style (standard pillow block vs heavy-duty), mounting hole spacing, sealing type, and whether you need set-screw lock, eccentric collar, or adapter sleeve locking. Also consider environment (dust/water), speed, lubrication method, and load direction. For heavy shock loads or harsh environments, choose a heavier housing and better seals.