Question

why do we use ball bearings to reduce friction​

Answer 1

Ball bearings reduce friction because they reduce the contact between the surfaces.

Answer 2

Ans: Ball bearings are small spherical balls placed between two moving cylindrical surfaces. These balls

roll between two cylinders and enable both cylinders to move over each other instead of sliding. Thus,

ball bearings change sliding friction into rolling friction, which makes movement easier.

Explanation:Answer:

roll between two cylinders and enable both cylinders to move over each other instead of sliding. Thus,

ball bearings change sliding friction into rolling friction, which makes movement easier.