Question

describe about ball bearing ?

Answer 1

A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races.

The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least three races to contain the balls and transmit the loads through the balls.

As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of frictionthan if two flat surfaces were sliding against each other.


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Answer 2

it's is help in reducing the friction.
$we \: use \: it \: in \: shafts \: of \: motors \: and \: axle \: of \: wheels$


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