Leadscrew Mounting Questions

[tanky321]

I bought two leadscrews at a swapfest a few weeks back, im having some difficulty coming up with a mounting method. I know that I leave one end floating due to thermal expansion, and usually compress taper bearings on the other end to hold it in place. The threaded portion of this leadscrew is right on the end, how do I put a nut on it and still connect my motor coupling to it? Anyone have any ideas?


Thanks!

[ger21]

Connect the motor to the other end?

[tanky321]

If I do that, I will have a thermal expansion issue wont I? Il have both ends fixed, so any thermal expansion will cause it to bend?

Also there is no tapered shaft on the opposite end, the leadscrew just ends.

Thanks for your reply

[ger21]

Perhaps it had a pulley mounted to it to drive it? What are you using it for where thermal expansion is an issue?

[tanky321]

Im using it for the Z-Axis for my router, granted I guess any thermal expansion im going to see is going to net a pretty low strain, but I figured I would just try my best to have the other end floating. I guess il just go with the motor on the opposite side.

[Kipper]

Try spacer-bearing-spacer-bearing-spacer-taper pulley-washer-nut....done.....Just the housing to make.

[tanky321]

Originally Posted by Kipper Try spacer-bearing-spacer-bearing-spacer-taper pulley-washer-nut....done.....Just the housing to make.

I was trying to go for a direct drive, with no pulleys or anything. Just because of the added, unnecessary complexity of the pulley system.

[Crevice Reamer]

The pulley drive would be much simpler for you.

If you want direct drive, then you will need access to a lathe. Extend the threaded area, (you could use a die for this) and then turn down the threaded end to a journal that fits your connector.

CR.