Plain Bearing Hinge UL

what is a plain bearing hinge? 

A plain bearing hinge is a type of hinge that relies on two plates or leaves, joined by a pin, to rotate around a fixed axis. The plates are usually made of metal, and the pin can be made of steel, brass, or other materials.

The term "plain bearing" refers to the fact that the hinge has no ball bearings or other rolling elements that reduce friction between the plates. Instead, the hinge relies on the surfaces of the plates and the pin to slide against each other as the door opens and closes.

Plain bearing hinges are often used in residential and commercial applications, including doors, gates, and cabinets. They are typically less expensive than ball bearing hinges, but they can wear out more quickly and may require more frequent maintenance.

While plain bearing hinges are generally less expensive than ball bearing hinges, they are not as smooth or durable. They are also more prone to wear and may require more frequent lubrication to operate smoothly. If you are looking for a hinge for a high-traffic area or heavy door, a ball bearing hinge may be a better choice.