Posted March 22nd, 2012 at 1:13 pm by Dan Musick
So you’ve seen our page on installing garage door torsion springs …
In the process of digesting all the information, customers sometimes make a dangerous assumption.
When installing two garage door springs, using two bushings or bearings sounds reasonable – it seems to make sense. Two springs, two bushings?
Actually, using two bushings causes the stationary cones to seat improperly. This can lead to the breaking of the cones. Furthermore, breaking cones on a spring with tension can release a massive amount of energy, possibly propelling tools or hardware with deadly force! (see the red text at our torsion spring replacement page).
If you have a slotted spring anchor bracket with a bearing/bushing, don’t add a second one.
And if you have a bracket with the bearing inside already, you don’t need a bushing or bearing.
It sounds contradictory, but it’s based on the function of a bearing or bushing: to protect the shaft against rubbing on the center bracket.
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