Pillow block bearing is an independent bearing unit that can provide support, load, and fix functions, and reduce friction resistance. Pillow block bearings are generally a unit composed of gray cast iron, ductile cast iron or cast steel bearing housings, rolling bearings and related sealing structures, fasteners, etc.

Pillow block bearing generally has a sealing mechanism and is filled with an appropriate amount of grease to ensure the normal operation of pillow block bearing during the lubrication cycle, and can provide relubrication oil injection holes.