Pl ans q57 with reason.
Q.57. Ball bearings are used to
(A) Convert static to dynamic friction
(B) Convert limiting to dynamic friction
(C) Convert sliding to rolling friction
(D) Convert rolling friction to fluid friction

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Solution

Dear student,
Answer : C
Ball bearings are used to convert sliding friction to rolling friction. Rolling friction is much lesser than sliding friction. When we use ball bearings, it will further reduce the rotational friction by supporting radial and axial loads.
Regards.

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Similar questions

Ball bearing is a device which usually converts:
(a) rolling friction into sliding friction
(b) static friction into sliding friction
(c) sliding friction into rolling friction
(d) rolling friction into static friction

What is rolling friction? What is the need of converting sliding friction into rolling friction?

Since rolling friction is less than sliding friction, sliding friction is replaced with rolling friction in most machines using ball bearings.

Most machines use ball bearings to reduce the energy lost in friction since rolling friction is smaller than sliding friction.

Q. Ball bearings use rolling friction instead of sliding friction.

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Pl ans q57 with reason. Q.57. Ball bearings are used to (A) Convert static to dynamic friction (B) Convert limiting to dynamic friction (C) Convert sliding to rolling friction (D) Convert rolling friction to fluid friction

Dear student, Answer : C Ball bearings are used to convert sliding friction to rolling friction. Rolling friction is much lesser than sliding friction. When we use ball bearings, it will further reduce the rotational friction by supporting radial and axial loads. Regards.

Pl ans q57 with reason.
Q.57. Ball bearings are used to
(A) Convert static to dynamic friction
(B) Convert limiting to dynamic friction
(C) Convert sliding to rolling friction
(D) Convert rolling friction to fluid friction

Dear student,
Answer : C
Ball bearings are used to convert sliding friction to rolling friction. Rolling friction is much lesser than sliding friction. When we use ball bearings, it will further reduce the rotational friction by supporting radial and axial loads.
Regards.