456EP2 Jason Ferezy May 15, 2020Door Hanger Rollers and Upthrusts 456EP2 Roller, Steel, 2.31″ OD, 0.56″ W, 1/2″-12 threads, assembly of round profile roller, bearing, bolt & washer. For type “B” hoistway door hangers, formerly p/n 456G1