Help! ID change gear set.

[LX Kid]

I've had this change gear set, which I think is for a Chinese lathe. Can someone verify what these fit? The hole is more than likely metric being 11.90mm / .469" and 5/16" wide. All have a machined in spacer. Any help would be appreciated.

 

[LX Kid]

Anybody have gears like these? Sure would like to know what they fit!

 

[Janderso]

I saw you posted on PM as well.
Good luck.