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In lugnet.org.ca.rtltoronto, Iain Hendry wrote:
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In lugnet.org.ca.rtltoronto, Steve Lane wrote:
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The carriage slides along the rail by means of sliding elements (option
...-GK) or recirculating ballbearing guide (option ...-KF).
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Can someone explain how a “recirculating ballbearing guide” works, it sounds
interesting.
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Linear rails and bearings are amazing. Super precise, super rigid, and
highly dynamic.
The following pictures should give it away without even any text. :)
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This is exactly the picture I had in my head when I imagined what a
recirculating ballbearing system would be like. It resembles a caterpiller
track.
Whenever I see a race of ball bearings I always think their should be somthing
inbetween them going the other way, to stop the two surfaces rubbing together,
but then you’d need somthing to support it, which whould introduce friction,
which defeats the object.
Steve
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Message has 1 Reply:
 | | Re: HOLD ME.
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| (...) You're talking about caged bearings. Caged bearings do have a higher coefficent of friction over non-caged bearings, but the friction is constant (in a normal bearing, the balls come into contact intermitently), the life is extended (...) (20 years ago, 30-Apr-05, to lugnet.org.ca.rtltoronto)
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Message is in Reply To:
| | Re: HOLD ME.
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| (...) Linear rails and bearings are amazing. Super precise, super rigid, and highly dynamic. The following pictures should give it away without even any text. :) (2 URLs) We make heavy use of linear rails and guides on all of our robots. (URL) (...) (20 years ago, 29-Apr-05, to lugnet.org.ca.rtltoronto, FTX)
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