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.
Pillow block bearings are generally divided into two types, intergrated type and split type, which can be selected according to different installation occasions and requirements. The split bearing housing(also called as plummer blocks) is of upper and lower halves, and the bearings in the bearing housing also have a split type or an integral type.
The types of pillow block bearings include ball bearings, roller bearings and tapered roller bearings, etc., depending on the load and work requirements.
The fixing method of pillow block bearing and the shaft generally adopts a set screw, an eccentric sleeve, etc.