Support roller bearing is a bearing unit composed of machined thick-walled outer ring, needle roller or cylindrical roller, or cage guide or fully loaded roller group, inner ring or bolt and seal, which can bear high radial load and certain impact load, with compact and diverse structure, high rotation accuracy, wide variety, wide adaptability and easy installation. It is widely used in machine tools, metallurgical machinery, textile machinery, printing machinery and other mechanical equipment and processing lines.

The thick-walled outer ring is quenched by high temperature and high nitrogen. The high-precision sorted rollers are guided by the retaining edge of the high rigid outer ring. With linear contact, the rollers can easily rotate directly on the raceway and can bear huge loads. In order to remove the stress, the outer ring of the support roller adopts the arc design. The curved roller has various specifications and models with single and double sealing rings, without sealing rings, with sealing rings, etc. Large space for grease storage with sealing ring, providing lithium grease for long-term lubrication, and extending lubrication interval. The sealing ring is made of nitrile rubber with framework or ST12, and its operating temperature range is - 30 ° C to+100 ° C or - 30 ° C to+180 ° C. The tightly-mounted curve roller can bear heavy extremely strong load and high performance operation.