On Wednesday, July 29, 2015 at 10:13:41 AM UTC-4, Pete Keillor wrote:
I'm finally finishing my filing machine. I'm down to finishing and
making the drive pulley.

I picked up a 1/4 Hp TENV motor at a salvage place here. NOS, $36.
It's kind of heavy for 1/4 hp, being a 56 frame, and it has a 1/2" D
shaft.

What's a good way to handle a D shaft? I can bore for 1/2" and use a
couple of set screws on the flat with loctite. I dislike setscrews on
flats for power, but this is pretty low power.

Anybody have a more workmanlike suggestion? Thanks.

Pete Keillor

Some garage door openers use a D coupler....

G'luck
PaulS