... in.)Bearing TypeLoad Capacity (Ibs)Part#211-1/161/4PLAIN 125PP212-1/21-1/81-7/165/16PLAIN 175PP25111-3/81 ... -5/83/8 3/8PLAIN SLEEVE200PP2514311-1/165/16 PLAIN 150PP311-1/41-1/21/2 3/8SLEEVE PLAIN 225PP3121 ... /81-5/83/8PLAIN 250PP314411-3/165/16PLAIN175PP411-1/41-1/21/2 3/8SLEEVE PLAIN 250PP4121-3/81 ... manufacturing technology, and a strict quality control system. 1", 2", 3", 4", 5", 6" Polypropylene wheel