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Part-1: Bearing Basic, Function, History and Type
Bearings are "parts that assist objects' rotation". They support the shaft that rotates inside the machinery. Machines that use bearings include automobiles, airplanes, electric generators and so on.
Rolling element bearings can be subdivided into two major types: ball bearings and roller bearings.
Bearings typically consist of the following components: Two rings, inner and outer, with raceways. Rolling elements - rollers or balls. A cage which keeps the rolling elements separated and helps guide motion.
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