Question

How do the use of wheel and ball bearing reduces friction?​

Answer 1

Answer:

Explanation:

Bearings reduce friction by means of a rolling motion

Figure 1 shows how the "shaft" rotates, causing the rolling elements ("balls" or "rollers") inside the bearing to roll. Bearings reduce friction by means of this rolling motion.

Answer 2

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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