Wolfgang TB-650 Spindle

I am not a cuemaker but was intrigued by your post. According to this the pulley should be a press-fit :

https://www.cnczone.com/forums/general-off-topic-discussions/41190-engineering.html

It looks to me like your motor shaft is scored by the pulley spinning. Perhaps the fix suggested in the above forum post might work for you. If it is quite loose you may want to add some "shafting beads" to your epoxy (24 hour of course ).

https://www.golfworks.com/the-golfworks-glass-shafting-beads/p/gw0043/

Good luck.

Dave

You could get a thin sleeve to fit on shaft and then press pulley over sleeve.. You may need to bore the hole in the pulley out slightly to true it up. As it may be a little out of round from running loose.

captainjko said:

You could get a thin sleeve to fit on shaft and then press pulley over sleeve.. You may need to bore the hole in the pulley out slightly to true it up. As it may be a little out of round from running loose.

Click to expand...

This is a good solution but one needs to understand how tight the tolerances need to be for a proper interference fit.

from https://en.wikipedia.org/wiki/Interference_fit

"As an example, a 10 mm (0.394 in) shaft made of 303 stainless steel will form a tight fit with allowance of 3–10 µm (0.0001–0.0003 in). "

Speaking from experience it is really tough to get a good fit. I suspect the difficulty in getting a good interference fit is why the pulley/motor is like it is.

Dave <-- wishes he owned an HLV