Overall, in mechanical terms, a bearing serves as a critical component that enables controlled motion, reduces friction, and supports loads in a wide variety of mechanical systems, playing a fundamental role in the functionality and performance of machinery across industries.

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.

   - Spherical Roller Bearings: Spherical roller bearings have barrel-shaped rollers that are guided by inner and outer ring raceways with a common spherical raceway on the outer ring. This design allows the bearing to accommodate misalignment and axial displacement, making them suitable for applications where shaft deflection or misalignment is present.