Collar Bearings are components that are used in power transmission applications where they are used to provide support for the shaft while allowing it to rotate freely, primarily used for low-speed applications.

Typically cast iron is used which provides good strength and durability. Other materials that can also be used are bronze or steel.

There are various types of collar bearings depending on the fastening method, shape, or installation; some popular types are set collar, split collar, threaded collar, clamp-type collar, or even reverse mountable ones with a keyway.

Collar Bearings offer a range of advantages, they are simple to use and implement. They also allow for axial positioning of the shaft and can be used in various conditions, even with misalignment.