Spacer for SW06UU Linear Bearings

by dnewman, published

Spacer for SW06UU Linear Bearings by dnewman Jan 11, 2012

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This spacer is a derivative work of Thing 14548. I've created this derivative solely for the purpose of providing others with an OpenSCAD description of the part so that they can fine tune it for their particular printer and bearings. That way, a good fitting spacer which won't rattle can be produced.

Also these spacers can be used on the Y-axis carriage as well as the Z-axis. As with the Z-axis, you would be replacing the press-fit adjustable bushings with these linear bearings.


See Thing 14548


for details.

To adjust the spacer, you will likely want to change the two parameters EXTRA and t in the OpenSCAD source file. EXTRA sets how large to make the inside hole in the spacer relative to the outside dimension of the bearing. It is a multiplicative factor set to 1.04. Make larger or smaller so as to get a good fit with minimal play. The parameter t is the thickness of your panels. Again, adjust so as to get a good fit.

  1. Print out four spacers for the Z-axis carriage and two more for the Y-axis carriage if you will be adding linear bearings to it as well. Use the "multiply" section of skeinforge with 3 columns and 2 rows in order to get 6. However, you may first want to print just one as you adjust the fit.
  2. Slide a spacer onto each bearing. Secure one end with a 9/16" clip.
  3. Install the bearing and clip on the other end with another 9/16" clip.

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Where did you get these? My google-fu is weak and I have not been able to find a good source for these bearings; e-bay has totally failed me and I can only find them on Amazon for $15-$50 each. This seems really odd because I can find metric bearings of similar size on ebay for about $2 each.

Thanks for the part and any advice.

I probably got them from either VXB (vxb.com) or BearingsDirect.com. They are both local to me and in the past I would just go to their brick-and-motar location.

Thanks for the advice. I found them at BearingsDirect for ~$5 each.

I have also found the 2CNJ9 bearings from Grainger fit well. I used them on the x axis bearings.

Cool, I've upgraded my X-Carriage with these bearing using this thing: http://www.thingiverse.com/thing:9420http://www.thingiverse.com/thi... so It's time for the Z and possibly Y now. These bearing are also known as LMB6UU

Linear Bearing X Axis Carriage for ToM

Indeed, my ToM sports that same X-carriage. And, like MakeALot, I put a pair of those linear bearings on my Y-carriage and held them in place with a spot of glue after letting them settle in. (Third to last photo for Thing 9420.) However, I figured that that spot of glue would give way eventually so when Jetty mentioned these Z-spacers to me, I jumped on them.