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) size: 12x32x10mm 5) precision: p0/p2/p4/p5/p6 6) vibration: v1/v2/v3/v4 7) clearance: c0/c2/c3/c4/c5 8) noise levels: z1/z2/z3/z4 9) seals types: z, 2z, rs, 2rs, rz, 2rz, open 10) applications: trolley, roller conveyor and other transmission machinery