Hub/coupling (keyway) for stepper motor

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1

I’m looking for a 12 mm keyway hub or coupler for this motor/gearbox: https://www.robotshop.com/ca/en/74v-1a-planetary-gear-unipolar-stepper-motor.html

I found this hub: https://www.robotshop.com/ca/en/12mm-set-screw-key-hub.html

At $24 it’s a bit pricey. Are there any other options I should consider?

Thanks!

2

Hi @fishy and welcome to the forum!

Currently there are these hubs for 12mm:

But I think your choice is better.

3

Thanks. I initially thought the key on the shaft was not removable, but looking at it again it looks like it is. So I think the 12 mm hubs you listed will also work.

Do you know the RPM of this motor and gearbox?

1 Like
4

Reduction ratio: 32

The RPM will depend on the driver of the stepper.
Make sure the driver is good for a Unipolar Stepper motor.