Originally Posted by Qwerty256  Wouldn't it be necessary to use a second bearing to support the leadscrew radially as well as axially? Maybe easier to use a double-row angular contact bearing? |
Radial clearance in the block of a couple of thou would not effect the table position measurably.
But a couple of thou in axial clearance translates directly to table backlash.
It would be marginally better to use use "a double-row angular contact bearing" but I think certainly not "easier".
You need to precision bore out the mounting block and provide some way to secure the bearing race at its od.
Compared to just removing about 10mm off one face for the axial bearings.
Your call!
I did mine using "a double-row angular contact bearing" and after it was done felt I wasted time & effort compared to just using the axial bearings.
If you are going to use an offset motor and belt drive then some radial load will be incurred which could justify it.
Pres