12 * 41 * 20mm Steel V-type Guide Pulley Guide Bearing Guide Roller Bearing Bearing V Groove Bearing Wear-Resistance Mobile doors and windows Linear Motion SystemOther bearings

High strength metal construction ,with long service life . The bearing is made of high quality bearing steel ,processed by heat treatment and precision grinding . This bearing is suitable for cylindrical guides or 120 degree V rails ,widely used in heavy duty equipment ,textile machinery ,electronic equipment ,machine tool and more . Internal bearing balls have low friction coefficient ,which bearing run smoothly and flexibly . The bearing is well sealed ,waterproof and dustproof ,safe to use .