Question

give reason

We use ball bearings in shafts of motors.​

Answer 1

Answer:

the purpose of a ball bearing is to reduce friction and support radial and axial loads

Explanation:

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Answer 2

Answer:

The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads.ln most application,one race is stationary and the other is attached to the rotating (e.g.,a hub or shaft) .As one of the bearing races rotates it causes the balls to rotate as well.