Question

what is lubricants and why do we need it?
Please answer fast, it's urgent.​

Answer 1

Answer:

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lubricant is a substance that reduces friction, heat, and wear when introduced as a film between solid surfaces. Using the correct lubricant helps maximize the life of your bearings and machinery, therefore saving money, time, and manpower, thus making operations more efficient and more reliable.

Answer 2

Answer:

Lubricants are the substances which helps in reducing friction between surfaces in a mutual contact. It can also have the function of transmitting forces, transporting foreign particles, or heating or cooling the surfaces.

USES:

(i)To lubricate each part of the bearing

(ii)To reduce friction and wear

(iii)To carry away heat generated inside bearing due to friction and other causes

(iv)To cover rolling contact surface with the proper oil film in order to prolong bearing fatigue life

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