[cweeks]

Hi,

Have any of you guys used these bearings for an X Y assembly, they are designed to slot directly on to T slot aluminum extrusion. The use UHMW-PE (Ultra High Molecular Weight Polyethylene) bearing pads.

http://cgi.ebay.com/ws/eBayISAPI.dll...m=370188940426

Cam.

[cweeks]

No it seems.

http://www.cnczone.com/forums/showthread.php?t=10300

[Sputnik]

I and others have used them, but they are pretty much crap when it comes to using them on a machine axis if you want any speed at all. They have too much friction when they are set up for no slop or too much slop with little friction.

[cweeks]

Thanks for the confirmation. Moving right along then does anyone do a skate bearing linear slide for ally T slot extrusion then ? I notice the guys at http://www.cncrouterparts.com/ do something very close to this. I guess skate bearings straight on ally extrusion would be a bad match of material hardness.

Cam.