Holding gear in lathe chuck

[Latinrascalrg1]

Yup that would be even better but in a pinch not absolutely necessary.

 

[Nutfarmer]

Soft jaws bored out to fit the gears od would also work

 

[HarryJM]

Maybe a step collet might work.
https://www.hobby-machinist.com/thr...p-collet-used-for-and-how-do-you-use-it.1564/

 

[stupoty]

Pot chuck to hold a gear

• stupoty
• Apr 28, 2016

first time using a pot chuck to hold a part, cut the hole and hand pressed the gear in then...

I made a pot chuck from aluminum to hold a gear by the edge for doing work on the center, worked well. the gear is pressed into it.

Stuart