In summary, the function of a deep groove ball bearing includes supporting radial and axial loads, reducing friction, enabling smooth rotation, distributing loads, and facilitating proper lubrication. These functions make deep groove ball bearings essential components in a wide range of machinery and equipment across various industries.

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.