The LiftMaster 15-50B60ZPZ is an OEM sprocket engineered for chain-driven commercial and industrial door operators. Identified by the 50B60T designation, it is a 60-tooth sprocket for ANSI #50 roller chain with a B-hub configuration, used to transmit power from the operator shaft to the door mechanism. This replacement sprocket helps restore smooth, reliable drive performance on rolling steel doors, sectional overhead doors, and grilles when the original sprocket is worn or damaged. It is appropriate for applications where LiftMaster specifies #50 chain and a B-hub sprocket of matching shaft and keyway dimensions.
For proper use, install the sprocket on the operator shaft per the LiftMaster service manual, ensuring correct keyway engagement, sprocket alignment to the mating sprocket, and correct chain pitch alignment and tension. After installation, torque fasteners to specification and confirm that guards are in place and that lockout/tagout procedures are followed during service. To verify compatibility, match the tooth count (60T), chain pitch (ANSI #50), hub style (B-hub), and the bore/keyway requirements of your specific LiftMaster operator. Consult the parts diagram or technical documentation for your model to confirm interchange before ordering.