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Old 04-21-2016, 01:28 PM
ptebbe ptebbe is offline
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Default Re: Slewing bearing

I used a tapered bearing on the top (carries both radial and thrust load):
http://www.mcmaster.com/#standard-ba...rings/=122wlwm

And I used a regular ball bearing underneath. I machined aluminum bearing holders and screwed a 72t gear-ring onto the top one.

This might have been overkill, but it is super tight and it turns very smooth.
Paul
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