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Thread: Idler Pulley
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post #3 of Old 06-13-2019, 03:48 AM
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Join Date: Apr 2016
Location: Alberta
Posts: 2,544
Re: Idler Pulley

Depending on the pulley and how it's assembled, it may be cheaper to grind/cut the rivets holding the pulley together, separate it, buy a new bearing like the old one, then bolt the pulley together (which also makes replacing the bearing later easier). I've got a number of 3" idlers/pulleys that are like this, that use a pressed in bushing to offset them a bit and reduce the I.D., that it takes a little time and a $5 bearing, vs $30+ for even a cheap knockoff pulley/idler, or $50+ for the OEM one.

Even the small 1.25" idler on my Ariens LM21 mowers, $50 from the dealer, or I can buy a $10 1.25" idler, and swap the center bushing from the old idler to the new one myself.
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