In summary, the angle of contact in angular contact ball bearings is a fundamental design feature that enables the bearing to support combined radial and axial loads, accommodate high-speed operation, and provide high precision and rigidity in various industrial applications.

The function of a single row deep groove ball bearing is to provide support for radial and axial loads, reduce friction, facilitate smooth and efficient rotation, and maintain the integrity and performance of mechanical systems. Here are the key functions of a single row deep groove ball bearing:

- Thrust bearings, on the other hand, are designed to support axial loads within the engine or machinery. In an engine, thrust bearings are typically located at the end of the crankshaft to counteract the axial forces generated by the engine's operation. They are responsible for maintaining the axial position of the crankshaft and preventing it from moving forward or backward.

The primary function of a bearing is to enable the controlled transfer of loads and motion while minimizing friction and wear. Bearings achieve this through the use of rolling elements, such as balls or rollers, or through sliding surfaces, depending on the specific type of bearing. By doing so, bearings help to maintain the integrity and alignment of rotating shafts, axles, and other mechanical components, ensuring smooth and efficient operation of the machinery.

   - Cylindrical Roller Bearings: Cylindrical roller bearings consist of cylindrical rollers that are guided by inner and outer ring raceways. They are designed to support high radial loads and moderate axial loads and are commonly used in applications where precise radial load support is essential.