タイトルまたは説明

Pillow Block Bearings is a bearing unit which combines rolling bearing with the bearing block. Most pillow block bearings make the external diameter spherical and are mounted with bearing block with a spherical inner hole. The product has a variety of structural forms and good versatility and interchangeability.Meanwhile, pillow block bearing has adjustable disposition and a double structure sealing device, and it is easy to install and work under bad environment. The bearing block generally adopts the casting forming. Common bearing blocks consist of P vertical seat, F square base, FC convex circular seat, FL diamond shaped seat.The needle roller bearings apply to the situations which give priority to have simple equipment and spare parts, such as agricultural machinery, transport system or building machinery.Pillow blocks are usually referred to the housings which have a bearing fitted into them and thus the user need not purchase the bearings separately. Pillow blocks are usually mounted in cleaner environments and generally are meant for lesser loads of general industry. These differ from "plummer blocks" which are bearing housings supplied without any bearings and are usually meant for higher load ratings and corrosive industrial environments. However the terms pillow block and plummer block are used interchangeably in certain parts of the world.The fundamental application of both types is the same which is to mount bearings safely enabling their outer ring to be stationary while allowing rotation of the inner ring. The housing is bolted to a foundation through the holes in the base. Bearing housings are either split type or unsplit type. Split type housings are usually two piece housings where the cap and base can be detached, while certain series are one single piece housings. Various seals are provided to prevent dust and other contaminants from entering the housing.