Q. Ball bearings are used in cycles, scooters etc to
✅ Correct Answer: (B)
Reduce the friction between the wheel and the axle
Explanation: The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. Reduce the friction as rolling friction is the least, rather than sliding or static friction.
Explanation by: Mahesh Chandra
The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. Reduce the friction as rolling friction is the least, rather than sliding or static friction.