aluminum or steel?

[Richard Coers]

Richard it's a matter of which words you and I choose to use. Here's a illustration of a rack and pinion assembly.

R&P.jpg

That sure looks like what is you are calling a gear slides or equalizer slides?

The reason for the wear strips is that I believe when extended, with the extension in use, the weight will end up being supported on the table rails so I want to insure that minimize wear on the table top when being extended and retracted.

I agree the wear should be on the inside of the slides but with weight on the table I am concerned about sag resulting in the tabletop riding on the rails of the table.

Please show me the model slide you intend to use, I've never seen a rack and pinion table slide. The wear WILL be inside the slides, not should be. The slides I am talking about is in the video I've shown in another post. I'm just trying to share my experience here, I won't be adding anything more.