High inner diameter bearing used for conveying system corners or shunt, the confluence part, can also be used on both sides of the conveyor for guard and guide 1) Material: Chrome steel (GCr15) 2) Cage: Steel 3) Ball: steel 4) Precision: P0 - P6 5) Vibration: Z1 - Z3 6）Clearance: C0 - C5 7) Seals type: Z, 2Z, RS, 2RS, RZ, 2RZ, OPEN 8) Application: Trolley, roller conveyor and other transmission machinery