I picked up this Winchester- Shen Wai lathe a few weeks back. I'm in the midst of getting it up and running good. Had to come up with backing plates for the odd spindle thread (2"X8tpi) ; almost have it figured out & will post pictures of what I did later.
It's cutting chips for the backing plate project now. It seems pretty well made for an Asian lathe. However, the spindle drive belt is in bad shape & needs replaced. A google search for this lathe comes up dry, and I'm hoping someone has seen something similar to help point me in the right direction.
It appears to have tapered bearings with a carrier in each end. It looks to me that the two spanner nuts are used to set and lock preload?:
The main back gear on the right is obviously is mounted (keyed?) to the spindle, but I dont see how it stays rigid to the shaft, unless there's a set screw or something under the pulley. There appears to be a collar with a set screw on the left that must hold the pulley/gear assembly in place, and there is a set screw on the pulley that must hold it in place on the backgear drive shaft/gear:
I would be most appreciative for any wisdom the team can offer. I guess I will start by backing off the spanner nuts, & remove the end plates to see how things come apart. (I guess the swarf tray will catch the oil!)