Angular contact bearings are a type of bearing designed to withstand axial and radial loads simultaneously at various angles. These bearings typically consist of double rows of angular contact balls that are positioned at different angles to each other. The angle of contact between the ball rows and the bearing axis defines the design of angular contact bearings. This design allows the bearing to handle higher axial and radial loads, resulting in high efficiency in carrying heavy loads and operating at high rotational speeds. Angular contact bearings find extensive use in various types of machinery and industrial equipment. Common applications include automobiles, airplanes, industrial cutting and grinding machines, agricultural machinery, and large mining industries. Due to their ability to handle different loads and high rotational speeds, these bearings facilitate the improvement of machinery and equipment performance and efficiency.