A Ball Bearing is a type of mechanical component that is used to reduce rotational friction and support axial and radial loads. The structure of a Ball Bearing has two races: one is stationary, while the other is attached to a rotating assembly (a shaft or hub). The balls in a Ball Bearing transfer loads through a groove between the races.

Ball Bearings can be single or double-row. Single-row bearings have one row of balls, while double-row bearings have two rows. In both cases, the outer race is split and the inner ring has a groove cut away. The split outer race allows the full complement to be used, though it limits the misalignment tolerance.

The selection of the correct Ball Bearing depends on a number of factors, including the size, material, and load-carrying capacity. In addition, the type of lubricant should be chosen carefully. The presence of corrosive agents and stray electrical currents should also be considered. There are several different types of Ball Bearings available, and deciding which is the best one for your needs can be complicated.

A typical deep-groove Ball Bearing is designed for high-speed operation. It also has a separator to prevent the balls from rubbing against one another. At low-rotative speeds, the separator is not necessary. The inner race OD and outer race ID control the sliding of the balls in the bearing.

Despite their simple design, Ball Bearings are not without flaws. While they may not be as durable as a conventional steel bearing, they are still durable. Some types of Ball Bearings have a cage that separates the balls while rolling. They also reduce friction and can operate up to 40% faster than conventional bearings.