Sprocket broken on LiftMaster Chain Drive Garage Door Opener in Vancouver
Sprocket broken on LiftMaster Chain Drive Garage Door Opener in Vancouver
![View of broken sprocket on a LiftMaster chain drive motor](https://accessgaragedoors.ca/wp-content/uploads/2019/04/20190205_140751-1024x576-3.jpg)
Sproket that has broken off. You can see the broken pin that is in the middle that has a missing sprocket head. This is caused from a heavy garage door that has been lifted by the motor for a considerable time. You can see the sleeve bearing that houses the assembly also worn away. You can see the filings that are piled up around the opening.
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