Rotating Ballnut - design ideas

[Boyan Silyavski]

So by attaching the Larger bearing to the smaller shaft/gear/bearing combo, it raises the whole inertia dilemma?

No. Changing the gear ratio raises the inertia dilemma.

If there is a possibility of lowering the height of the machined gears to let the 7207 pass over it might work

have to check that on some specifications but i think this was not possible. Willlook later at night

But do you still believe it's cheaper, easier to bore out a $4.00 pulley?

Or you will have to redraw the rotating part and the aluminum block part/ all the parts/ from scratch. I dont know what to believe, depends how you value your time.