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  1. 19-09-2011 #1
    Robin Hewitt's Avatar
    Lives in Seaford, Sussex, United Kingdom.
    Robin Hewitt
    Last Activity: 1 Day Ago Has been a member for 9-10 years. Has a total post count of 1,617. Received thanks 109 times, giving thanks to others 7 times. Is a beta tester for Machinists Network features. Referred 1 members to the community.
    Quote Originally Posted by mocha View Post
    Are there any thoughts about using 6 bearings instead of 4 on an axis, specifically here I'm thinking of 25mm supported rail?
    You'd probably only consider 6 if the loading was too great for 4. OTOH if the loading was too great you'd want a fatter rail. It's the separation that counts.

    Locating ball nuts has 2 major thoughts, keeping it rigid and avoid introducing twist. Don't put them out on a limb.
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