High precision Pillow Block Bearings 1. UC,UCP,UCF,UCFL,UCT 2.SKF,NSK,NTN, ... of roller and retainer) and outer ring. This kind of bearings do not allow the shaft relative to the shell has ... its code-named: UEL200 series, UEL300 series, SA200 series. High precision Pillow Block Bearings UC218