1.Forged outer flange ring 2.Induction hardened 3.SKF bearing assembled inside 4.Custom dimensions are also available ZMIE ... drive chain, trolley attachment, side link pusher dog, rollers turn roller, enclosed track chain, free carrier trolley and so on. Our ... conveyor chain, sprockets, bearings, forged gear, special shaft, outboard roller assembly, conveyor roller, special brass parts and so on.