Assertion : Use of ball beaings between two moving parts of a machine is a common practice.
Reason : Ball bearings reduce vibrations and provide good stability.

Assertion : Usage of ball bearing between two moving parts in a machine is a common practice Reason : Ball bearing reduce vibrations and provide good stability Which one of the following statement is a correct statement

Lubricants are used between the two parts of a machine. Why?

How does the use of ball bearing reduces friction

Friction in moving parts of a machine can be reduced by using ______.

Define force of friction. How does the use of ball bearing reduce friction ?