The tapered barrel on these bushings is split on both sides, allowing them to contract more tightly around the shaft than quick-disconnect and taper-lock bushings. They're for use with split-tapered sprockets and pulleys of the same bushing style. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.

Bushings with a machine key fit into a matching keyway on a sprocket or pulley for high-torque applications.

304 stainless steel bushings are often used in food-processing plants and other frequently-cleaned areas because washdowns and humidity won’t corrode them. They have a pilot hole instead of a finished keyway, so you can bore them to the exact dimensions of your shaft.