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Unread 12-06-2012, 10:05
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Re: Needle Bearings for Drivetrain

Igus has a lot of application information on their web site. If you notice the kit of parts Igus AL shaft has an hard anodized coating. It helps with friction & wear.

Both bushings & needle bearings will need some kind of thrust bearing to adsorb the axial load. Simplest case is a washer.

Rolling bearings like ball & needle need hardened races because the high contact pressures. Bushing have considerably lower contact pressure & generally have one hard & one relatively softer surface. Oil lubricated plain bearings (bushings) are a completely different animal since the sliding surfaces are not suppose to contact each other.
 


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