Question # 60

What is grease and where is it used?

What is grease and where is it used?

By: Dimitros
on Sept. 30, 2016, 10:51 a.m.

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Answer(s):

Grease is essentially a material used for lubrication of moving parts of machinery. It is generally made from a lubricating oil and a metallic soap. The soap acts as a thickening agent and is dispersed in the oil; the resultant grease may be semi-fluid or solid. Additives may be used in conjunction with the lubricant to give the grease more desirable qualities.
Sometimes materials other than metallic soaps and lubricating oils are used to produce a grease having characteristics to suit special requirements. Molybdenum disulphide is used in many applications where loads are high and speeds slow.
Greases are used in electric motor bearings, roller and ball bearings and in applications not easily accessible such as rudder bearings. Grease may also be used to exclude foreign matter from bearings in circumstances in which seals would be costly or impracticable.
By: Dimitros
on Sept. 30, 2016, 10:51 a.m.

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