The angle of contact in angular contact ball bearings is carefully engineered to ensure that the bearing can effectively distribute and support the applied loads. By adjusting the angle of contact, the bearing can be optimized to handle varying degrees of radial and axial loads, providing versatility and adaptability for different applications.

These four types of bearings play a crucial role in a wide range of machines and equipment, providing support for rotational and linear motion, reducing friction, and enabling the efficient and reliable operation of various mechanical systems across industries.