It's important to note that while spherical roller bearings have these potential disadvantages, they are still widely used in various industries due to their ability to support heavy radial and axial loads, accommodate misalignment, and withstand harsh operating conditions. Careful consideration of these factors is essential when selecting bearings for specific applications to ensure optimal performance and reliability.

In summary, the purpose of the deep groove type of ball races in a ball bearing is to enable the bearing to support radial and axial loads, reduce friction, facilitate smooth rotation, distribute loads evenly, and contribute to the overall efficiency and reliability of the bearing in various mechanical applications.

   - Radial contact bearings are commonly used in applications where the primary load is radial, such as in electric motors, pumps, and gearboxes.