Re: pulling gear on Keyang motor??
 

If you are making a custom hub, keep in mind that the small, ~.25" shaft doesn't rotate. Only the gear on the outside rotates. So, don't rely on using the small shaft to hold your hub on the gear.

Re: pulling gear on Keyang motor??
 

228 has a rotary table and my dad, who made the part, is a machinist.

Re: pulling gear on Keyang motor??
 

I second that. We've occasionally had to make some strange parts that are best done on a rotary table or indexer. Rotate the part so many degrees, then move it so far in the x direction, reset, rotate so many degrees, and repeat :)

Re: pulling gear on Keyang motor??
 

If you have DRO you can machine it without a rotary table or index head. Just calculate the center x,y locations of each location. If you have an index head, it can be done with a drill bit in a Bridgport. We have done that in the early years when adapting motor/transmission combos. you can even do it with a drill press with careful layout, but you are apt to generate a loose fit using that method. Just make a good sliding fit to the same outer diameter as the gear on the Keyang motor.:) :)