Each hub includes a set screw, which bites into your shaft to hold the coupling in place.

An acetal plastic spacer at the center of these couplings insulates bearings, encoders, and other shaft components from stray electric current. Use them with servomotors, which sometimes generate current that travels down the shaft and can damage circuit boards, interfere with readings, and cause wear on bearing raceways.

Each hub includes a set screw, which bites into your shaft to hold the coupling in place.

Wider than standard shaft collars with twice the number of clamping screws, these ensure a better grip for greater holding power.

These metal collars are stronger than plastic shaft collars.

Although these collars fit inch-sized shafts, they have a metric OD and width for use with metric equipment.

Three tapped counterbored holes and three through-holes provide mounting flexibility.

Mount these collars flush against each other or attach components to either side—the round body has flattened ends with tapped holes.