I dismantle a normal clutch and consider how I shall do it.
How does it prevent oil from coming out?
The place to put the oil seal is difficult.

What should I do to attach it without processing to a main shaft?
Eventually I feel like I have to make an offset clutch boss…

How should I cut this long groove?
If I make it with the equipment of my company, I will have to use a manual index table to cut one groove and turn it, cut one groove and turn it.
In digging 27 grooves,it takes several hours.
I feel difficult if I do not use NC of 4 axes …