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#1
 
07-31-2009, 09:32 AM
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How do they work? I see the offset hole, but how do they use that for adjustment? Can they be locked in place? I have an idea for linear rail type brackets but would need this type of bushing for adjustments. Are they pricey or can I make them. Have a mini lathe and milling machine.  |
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#2
07-31-2009, 10:16 AM
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| The ones for dual V rollers have a rough surface that grabs when the wheels are bolted down. Sort of like a lock washer so they can't turn. To adjust them, you loosen the bolt and turn them with a wrench. Then tighten the bolt back up. You can't see the roughness in these pics, but I've bought these and they are like that. http://www.cadcamcadcam.com/eccentri...ovewheel2.aspx
__________________ Gerry Mach3 2010 Screenset http://home.comcast.net/~cncwoodworker/2010.html (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |
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#3
07-31-2009, 12:51 PM
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| I propose to have a wheel made of Delrin (Acetal) with an appropriate center hole, without a bearing, that can be adjusted to promote tight free motion. Can these type of bushings be used without a ball bearing?. |
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#4
07-31-2009, 05:15 PM
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| I guess, as long as the wheels thickness is less than the length of the bushing, or else the bolt head or washer will keep the wheel from turning.
__________________ Gerry Mach3 2010 Screenset http://home.comcast.net/~cncwoodworker/2010.html (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |
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