Designed to maximize performance, Timken® Fafnir® ball bearing inserts are designed for straight shafts and can be positioned without shoulders, locknuts or adapters. Timken® locking options include set screws, self-locking collars and concentric collars. Timken® Fafnir® ball bearing inserts feature specialized product lines to solve specific application concerns. Our problem solver series helps prevent downtime by using superior technology to keep equipment running efficiently and improve your bottom line. Fafnir® Cylindrical Ball Bearing Cartridge, Light Duty, Series: RCSM, 1 in Bore Dia, 2.53 in Outside Dia, 1.41 in Width, 3550 lb Dynamic/1730 lb Static, Rubber Seal, Rubber Cage, 2400 RPM Maximum, Uncoated