August 5, 2013 - 9:05pm
Mill bearings.
I finally got around to converting one of my mills for use with an exercise bike, but after doing so, I noticed the instructions that it came with say that you need to buy an optional ball bearing accessory for use with bike/motor.
After giving it some thought it strikes me that when you're turning a handle 360 degrees of the bearing experiences wear, thus wearing evenly, but when you have the mill driven by a chain or pulley the wear is always going to be in one spot on the bushing.
Has anyone had a problem with wearing out bushings in cheap mills? Or is this just the manufacturer trying to sell a product and then all the accessories one by one.