Garage Door Opener Gears

Most openers use an operator rail to raise the garage door. The opener causes a few gears to turn, which turns a sprocket. This sprocket contains a belt or chain which runs along the length of the operator rail. The trolley connects to the chain or belt, which connects to the drawbar arm. As the chain pulls on the trolley, the garage door opens.

If the grease drys up off the gears, your gears will wear out. You can know this has happened when you see plastic shavings inside your opener. Another cause for worn opener gears is an improperly balanced garage door. If the springs are too weak or you continue to operate the door with a broken spring, you can wear out the gears in your opener.

Use the links below to see gears and sprockets from specific manufacturers. You can also see other parts for operators or garage doors in the links on the right.

Sort by Manufacturer:

View Other Parts:



Back to top
Prices Subject to Change

Unmatched Support. The Right Part. DIY with Confidence!

YES, WE'RE OPEN FOR BUSINESS!Due to the Coronavirus and the Delta varation, we have changed our local order pickup policy at our West Chicago location. To pick up an order you will need to order first. The quickest way to do this is through our online shopping cart. There you can select the local pickup option. Or, you can call 630-293-1337 for assistance and to place your order. When ready, we will call you and your parts will be available for pickup in the front entrance on the north side of the building. Longer items will be picked up on the south side loading dock. Please do not arrive until you have been notified that your order is ready.

COVID / DELTA VARIANT UPDATE! NO MASK, NO SERVICE! When picking up parts please wear a mask. If you don't bring one we'll gladly provide one. Please honor the six foot social distancing rule to protect yourself and our employees. Thank you for your patience and understanding as we all navigate this challenge together. More information is available on our blog titled DDM Adjusts to the COVID-19 Coronavirus. In the same article you will also find documentation and an answer to the question: "Is a garage door repair company a life sustaining business?"

PLEASE NOTE: COVID has interrupted global supply distribution chains resulting in unprecedented delays on incoming door and dock industry products. The result is limited availability of many products, three month delays on incoming shipments, and an inflationary rate of over 50% just this year on many of our products.

PLEASE NOTE: DUE TO COVID-19 SHIPPING TIMES ARE NOT GUARANTEED, EVEN ON NEXT DAY AND SECOND DAY SHIPMENTS. NORMAL TRANSIT TIMES DO NOT APPLY.

web design by erich musick
Copyright ©1999-2021 DDM Web Services, Inc. All Rights Reserved.