Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door.
Garage door motor plastic gear.
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This is the plastic gear that comes in direct contact with the worm drive gear on the motor.
When it comes to garage door opener replacement parts liftmaster can help you find what you need.
Explore a wide variety of garage door motors and electrical parts with detailed descriptions and learn how these parts are compatible with specific garage door openers find the garage door motors and electrical parts you need to get the job done.
It can be a complicated repair but not impossible to do yourself.
If yours is a belt drive you need a kit like this https amzn to 2zqns.
This is a video on how to change the gear sprockets in a craftsman garage door opener.
Keep your garage door opener up and running using garage door opener gear kits from liftmaster.
Shredded plastic gears are a common problem with chain driven garage door openers.
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This was a craftsman model 139 53976srt.
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If the gear and sprocket assembly breaks the motor runs but the door won t move.
Chances are your main drive gear has bit the bullet.
This gear kit on amazon.
Replace a broken gear and sprocket assembly with the manufacturer approved replacement part.
Fortunately the repair is neither difficult nor expensive and it should only take an hour of your time.
Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products.
We design and engineer residential garage door openers commercial door operators and gate entry systems.