Thingiverse
Garage Door Drive gear
by TriumphBSA
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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!
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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