ball transfer units, ball table 1, over 30 differernt model with different loading capacity 2, steel,nylon,stainless material ball transfer unit, ball tabledetail drawing for each model can be offeredmain ball size from 15.8mm to 76.2mmball material steel, nylon, stainless optionalhousing material steel, stainless optionalflange fixing, bae fixing, bolt fixing modelcustomized model available ...