Set screw for gear?

[Tpdingo]

I have a gear on the drive shaft that I dont remember exactly where I got it but it was an Amazon purchase with the following specs:

5/8" shaft
36 teeth
#35 chain

What would be the set sreew size for the gear?

 

[anickode]

Set screw size is whatever they tapped it for. It SHOULD be 5/16", but that's kind of a crap shoot.

Set screws are cheap. Go to the hardware store and buy a few different sizes that look right. Whatever fits is what it is.

Or take the sprocket (not gear) in with you and find one that matches.

 

[mckutzy]

I'm going to say probably 1/4-20...

 

[Tpdingo]

Nevermind. Im a bozo and didnt see the set screw was in the hole 90 degrees from the empty one.

 

[anickode]

Nevermind. Im a bozo and didnt see the set screw was in the hole 90 degrees from the empty one.

Should be 2. One over the keyway and one 90° from it.

Though on smaller shafts not always.