LiftMaster Sprocket Kit, 50B60, 1.25" Bore, 3/8" Key, W/SS | LIF-71-1550B60QKH cartell driveguard free exit system 40mm Objective Lenses

40mm Objective Lenses

Painted steel bases with zinc-plated steel axles

brass plated steel devices (elevators)

Cable “Home Runs” from the door location back to the NOVA

LiftMaster Sprocket Kit, 50B60, 1.25" Bore, 3/8" Key, W/SS | LIF-71-1550B60QKH cartell driveguard free exit system 40mm Objective LensesLiftMaster Sprocket Kit, 50B60, 1. 25" Bore, 3 8" Key, W SS LIF 71 1550B60QKH This durable kit includes a 50B60 sprocket with a precise 1. 25 inch bore and a 3 8 inch keyway, complete with a set screw (W SS) for a secure fit. Designed to work with #50 chain systems, this sprocket helps ensure your door operates at the recommended speed and maintains proper torque transmission, extending the life and efficiency of your commercial door operator. Genuine