How to turn down gear hubs?

[Matt Reiland]

Originally Posted by sanddrag

What is a trantorque? Is it something a well equpped machine shop would have? Google Image search didn't give me too much. Thanks.

Quick-Mount Keyless Bushings Since there are no keys, cap screws, or other components to slow you down, you can torque up one of these bushings in just seconds. Match bushing OD to bore of your sprocket, pulley, or gear.
Each bushing has inner and outer sleeves. As you tighten the collar nut, the inner sleeve contracts onto the shaft while the outer sleeve expands to hold your component. Bushings accommodate shafts that are slightly out of round. They're quick and easy to install and remove.
Stainless steel bushings are made of Type 303 stainless steel.

THis is from McMaster, Small Parts also sells them