100pcs R8ZZ Shielded bearing 1/2" X 1 1/8" X 5/16" inch R8 2Z R8Z R8 ZZ R8 miniature ball bearings 12.7*28.575*7.938 mm|bearing housing|bearing setbearing alloy - AliExpress
R8ZZ - SKF - Radial Ball Bearings - 1/2in. Bore Dia, 1-1/8in. Od, Double Seal Deep Groove Radial Ball Bearing
China Bearing Manufacturer Inch Size Deep Groove Ball Bearing R8zz Bearing, R8-2RS Bearing, Klnj1/2zz Bearing, Ee4zz Bearing, 12.7X28.575X7.938mm Ball Bearing - China Inch Size R8 Z Bearing and R8-RS Bearing