Gantry bearing mounting extrusion

[Wal]

That's an oddball bit of extrusion, for sure.

Hey, why not ditch the idea of trying to track something like that down and simply buy linear bearings already housed in blocks and then use a plate as the interface between the bearing block and whatever you need it to attach to. See my highly technical illustration below.



All you'll need to do is layout and drill a few holes. If you can't get the plate at the exact thickness you need it then I'm sure someone on here could skim it down for you - alternatively buy the plate a little thinner than it needs to be and shim it.

Just a couple of ideas. Might help.

Wal.

EDIT - you'll probably want open type linear bearings to ride on supported rail (SBR or the like) my hasty drawing alludes to closed type bearings which ride on unsupported rail - if you want better rigidity then, of course, ditch your current unsupported rail system.