A ball bearing is a type of rolling-element bearing that uses balls to maintain separation between two bearing races. The balls are held in a circular track called the raceway, which is typically made of hardened steel. The balls roll between the two raceways, reducing friction and allowing smooth rotation of the shaft or axle.
Ball bearings are commonly used in machines and vehicles that require precise movement, such as electric motors, bicycles, automobiles, and aircraft. They are preferred over other types of bearings because they offer low friction, high efficiency, and can handle both radial and axial loads.
Ball bearings come in different sizes, materials, and designs depending on their intended application. They can be sealed or open, have different numbers of balls, and be made of steel, ceramic, or plastic. Overall, ball bearings are a critical component in many industries and have revolutionized the way we design and manufacture machines.
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