Handwheel construction- Jet 9X20

[Johnwright]

I'm turning some 1/2" alum. plate for a larger hand wheel on my cross slide. My plan is to simply press the new one over the existing (force it or possibly heat the larger) wheel. Does anyone have any idea of just how much interference is required without resorting to some type of locking pin? If I decide to heat the larger wheel, is the interference fit different?

 

[Flammable_Solid]

If you go for about 0.001" undersize on the ID of the bigger wheel, you should be OK.

When you go to fit them together, heat the new one in boiling water and put the old one in the freezer for an hour (dry ice and acetone is even better, but is at -40C so don't burn yourself).

If you have a piece of aluminum big enough to make a new wheel, why don't you just make a whole new wheel?

 

[jpfabricator]

I press fit a steel sleeve in an aluminum pully. I left a .007 diffrence and heated the pully to 200* in an oven.
The sleeve was .750 so I figured 10% was a resonable diffrence.

Jake Parker