What are shaft collars?

Shaft collars can position various machine components around the shaft or mount pipes and tubes onto a flat surface. They are available in different material types, and selecting one will depend on the required application.

The shaft collars can be used as bearing faces, mechanical stops, and locating components. These components are essential in machine design. They can be found in several types of machinery and can fulfil several roles.

Types

The common types of shaft collars are:

• One-piece shaft collars: They quickly increase the clamping force and tighten the clamp screw.
• Two-piece shaft collars: They can be assembled on the shaft anywhere, even between other shaft collars.
• Hinge shaft collars: These shaft collars have a clamp screw on one side and an open hinge on the other. It allows them to be assembled easily anywhere on the shaft. They can reduce the risk of dropping screws.
• Set screw shaft collars: They are single piece shaft collars and do not have relief cuts or splits. There is a set screw on the collar's outer face perpendicular to the collar's inner diameter.
• Threaded shaft collars: They can be both single and double split. Moreover, they can be installed both radially and axially.

The shaft collars are used in several applications, including mixers, office machines, printing presses, agricultural components, exercise equipment, etc.