Question

How does oiling and using ball bearings help to reduce friction?​

Answer 1

Answer:

Ball bearing reduce friction by using smooth balls lubricated with oil or grease that freely roll between a smooth inner and outer surface. The area of contact between inner and outer surface decreases hence friction decreases between them.

Explanation:

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Answer 2

Answer:

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Explanation:

Ball bearing reduce friction by using smooth balls lubricated with oil or grease that freely roll between a smooth inner and outer surface. The area of contact between inner and outer surface decreases hence friction decreases between them.