jayg
|
Quote from bob wand on Aug 24th, 2018, 4:58pm:Quote from jayg on May 30th, 2018, 8:25am:Quote from Mdicke on May 28th, 2018, 10:49pm:Really nice job there Jay Thanks, Mike. After several hundred miles, the Harbor Freight O-ring has disappeared, and the chain is chewing on the idler. Need to try a higher quality O-ring. Not making near as much noise as a toothed idler, even without the O-ring. Will see how long the idler lasts. Parker O-rings, Nitrile: (Buna-N) The most commonly used elastomer for O-rings because of its resistance to petroleum fluids, good physical properties and useful temperature range. Back in the early nineties I tried a few and came to the conclusion that my chains were just plain hungry. T-cycle Idlers with a metal core work the best for me until somebody perfects a belt drive. Some of the elastomeric O rings on my recumbents' idlers are resistant to the chain lubricants I use. Don't know what they are made of. I do know that Harbor Freight's "Nitrile" O rings are not resistant to the lubricants. Even though I have to replace the rings occasionally, I prefer idlers that use them to T-Cycle idlers, because they are much quieter.
|