- Needle Roller Bearings: Needle roller bearings feature cylindrical rollers with a much smaller diameter-to-length ratio compared to cylindrical rollers. This design allows for a higher load-carrying capacity in a compact space, making needle roller bearings suitable for applications with limited radial space.

The deep groove in a ball bearing is a fundamental design feature that enables the bearing to provide smooth and reliable operation, reduce friction, and support loads in a variety of mechanical systems. Its ability to accommodate radial and axial loads while maintaining efficient rotation makes deep groove ball bearings essential components in many types of machinery and equipment.