Mount these hubless bushings flush into your sprocket or pulley for a slim profile with no protruding screws.

Also known as Trantorque bushings, these tighten with a twist of the collar nut—no screws needed.

Insert these bushings into the bore of your sprocket for flush or recessed mounting.

Tighten just one set screw to clamp these bushings evenly around your shaft. The screw forces hydraulic fluid in between the double-walled sleeve, expanding the two walls against the shaft and the hub of your sprocket, pulley, or gear for a tight hold.