Tonight I decided to have another look at the Union lathe.
old-biker-uk, (Mark who makes those fascinating coins) was kind enough to offer me a motor mount with built in belt tensioner facilities.
Very generous of you Mark and extremely helpful to the cause.

The bronze bearings look to be in good condition and accept a 3/4" (19mm) pulley shaft. Here I've fitted a steel bar in my initial sort out of what I'm going to do with this lot.

I need to fit these two pulleys on the shaft, neither has the right sized bore....of course not, why would they....more excuses to turn on the lathe


For the 3 step cone pulley I decided to make a sleeve, uh, only got a drive shaft to make it from

But, I'm not going to drill or tap it this time, just reduce the outer diameter and bore it.
Learning from my past mistakes I'm using the abrasive cut-off saw this time around, the bandsaw blades last a wee bit longer this way


Turned the outer diameter to a little over sized to be finished later.
Here I'm drilling the center out to 19mm to fit the shaft.

Incidentally this is the first time for me to try my new keyless chuck. If you are still using a keyed chuck, do yourself a favour, throw it in the bin and get one of these. They are brill to use, no straining to get it tight enough, it self tightens under the drilling pressure, all you need to do is nip it up by hand first. Very quick to use esp as you don't have to hunt for the key first

The drilling with a 19mm bit is only possible after doing Bog's tailstock arbour mod along with me fitting the flat car fan belt. Totally transformed this lathe....

Boring out the 6" pulley to 19mm

This is the sleeve on the shaft, I will weld this together tomorrow, hence the chamfers for the weld bead. When that is done I will turn the sleeve to it's final diameter so that it's true to the shaft.

A few shots of the mock set-up


