The LiftMaster 15-41B36QGH sprocket (also referenced as 41B36T) is a genuine replacement component for LiftMaster commercial door operator drive systems. Built for ANSI #41 roller chain applications, it features a 1-1/4 in bore to mount on compatible operator shafts, delivering reliable power transfer between the operator and door shaft in jackshaft or trolley configurations. The 41B36T designation indicates a 36-tooth B-hub sprocket for #41 chain, making it a common choice when matching tooth count and chain pitch on LiftMaster commercial operators or when re-gearing to adjust door travel speed within manufacturer guidelines.
Use this sprocket when servicing or upgrading LiftMaster commercial operators that specify #41 chain and a 1-1/4 in mounting bore. For proper installation, align the sprocket with the mating sprocket, set correct chain tension, secure the fasteners to the manufacturer’s torque guidance, and ensure the chain and sprockets are guarded per safety standards. Always de-energize and lockout/tagout the operator before service. Confirm tooth count, chain pitch, and bore requirements in the operator manual or parts list (e.g., LiftMaster J, H, T series where applicable) to verify compatibility with your specific configuration.