There are several types of joint bearings used in various mechanical applications. Some common types include: Plain Bearings: These are the simplest type of bearings and consist of a plain inner and outer surface with lubrication between them. Ball Joint Bearings: Ball joints consist of a ball and socket mechanism enclosed in a casing. They allow rotational movement in all directions and are commonly used in automotive suspension systems. Spherical Plain Bearings: These bearings accommodate angular misalignment between the shaft and housing. They have inner and outer rings with a sliding contact surface. Rod End Bearings: Rod end bearings, also known as Heim joints, are used to connect mechanical linkages where oscillation or rotational movement is needed. Roller Bearings: Roller bearings use cylindrical, tapered, spherical, or needle-shaped rollers to reduce friction between moving parts. They are used in various applications including conveyor systems, automotive transmissions, and industrial machinery. Needle Bearings: Needle bearings use cylindrical rollers with a high length-to-diameter ratio. They are used in applications where space is limited and high radial loads need to be supported. Thrust Bearings: Thrust bearings are designed to support axial loads and allow rotation between two parts. They come in various configurations including ball thrust bearings, roller thrust bearings, and fluid thrust bearings. These are just a few examples of the different types of joint bearings available, each suited for specific applications based on factors like load capacity, speed, and environmental conditions.