Quote Originally Posted by WoodKnot View Post
Hi gents

I am not sure if i will be using the end bits with the bearings in, as they might not seat within the aluminium profile?
The 1605 BK/BF bearing holders fit exactly (but not perfectly) into the 45 mm gaps of 45x90 extrusions if you want to install them across in two T-nut tracks using 6 mm screws, but you must consider the ball nut because that will need some spacer or other solution, due to the fact that the HGR20 + HGH20 is 30mm high while the ball nut flange demands 45mm...

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...or 50mm if it is turned 90° high from the bottom.

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You can solve that in many ways, but it must be solved somehow. I think you will see that more clearly once you get the stuff. It's easier when you have something in front of you to look at than just CAD drawings or words.