The purpose of the deep groove type of ball races in a ball bearing is to provide a specific design that enables the bearing to effectively support radial and axial loads, reduce friction, and facilitate smooth and efficient rotation. The deep groove design of the ball races serves several key purposes, contributing to the overall functionality and performance of the ball bearing:

The term angle of contact in the context of ball bearings refers to the angle formed between the direction of the load and a line perpendicular to the bearing axis. In the case of angular contact ball bearings, this angle is specifically designed to optimize the bearing's ability to support combined radial and axial loads, as well as pure axial loads in a specific direction.

A cylindrical roller bearing is a type of rolling-element bearing that is designed to provide support for heavy radial loads and moderate axial loads. It consists of cylindrical rollers held in place by inner and outer rings, with the rollers positioned parallel to the axis of the bearing. Cylindrical roller bearings are widely used in various applications where high load-carrying capacity and rigidity are required.