Question

What is ball bearing and wheels with examples

Answer 1

$\huge\star\underline\mathfrak\red{Ball\:Bearing}$

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. ... However, they can tolerate some misalignment of the inner and outer races.

$\huge\star\underline\mathfrak\purple{Wheel}$

In its primitive form, a wheel is a circular block of a hard and durable material at whose center has been bored a circular hole through which is placed an axle bearing about which the wheel rotates when a moment is applied by gravity or torque to the wheel about its axis