2000 Posts and climbing!!!
Join Date: Apr 2016
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.