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Needle Bearings

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Needle rollers have no place in linkages from a engineering viewpoint as the amount they rotate is minimal & they're designed to be constantly rotating, ideal is to make aluminium bronze(work hardens) or more commonly phosphor bronze(has self lubricating qualities) bushings of the same dimensions

Doesn't mean I don't still have needles in my bike but I only because I've never gotten around to making up any at work

Needle rollers have no place in linkages from a engineering viewpoint as the amount they rotate is minimal & they're designed to be constantly rotating, ideal is to make aluminium bronze(work hardens) or more commonly phosphor bronze(has self lubricating qualities) bushings of the same dimensions

Doesn't mean I don't still have needles in my bike but I only because I've never gotten around to making up any at work

I have to agree with you there, I think a roller bearing is a strange choice, it makes them unessarseraly fragile, prone to collecting dirt and expensive to replace.

Solid bushes would be cheaper and easier to replace..

TLTEL

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