Garage Door Drive gear by TriumphBSA 3d model
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Garage Door Drive gear by TriumphBSA

Garage Door Drive gear by TriumphBSA

by Thingiverse
Last crawled date: 3 years, 1 month ago
For Sears Garage Door opener model 139.664053 (may fit others)
Gear part number 81B56
This design was done in solidworks using a helical gear module I found here -http://www.3dcontentcentral.com/secure/download-model.aspx?catalogid=171&id=428003#0
The file was modified it to replicate the old gear.
Make sure you apply grease when you install new gear!

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