Bearing Cups

Bearing cups are critical components in cross/yoke assemblies, serving as outer races or housings that contain and position rolling-element bearings (typically needle or roller bearings). They provide structural support, maintain bearing alignment under load, protect bearings from contaminants, and facilitate lubrication. In universal joint applications, bearing cups enable the articulation of drive shafts while transmitting torque efficiently.

Bearing cups work by providing a hardened, precisely machined surface for bearing elements to roll against, distributing radial and axial loads evenly across the bearing assembly. They maintain concentricity and preload, reducing friction and wear while allowing controlled movement in mechanical linkages.