Question

How do bearings help reduce friction?​

Answer 1

bearings reduce friction by means of rolling motion (reduces friction more than the « plain bearing »). sliding motion allows a greater decrease in the amount of energy consumption during rotation.

Answer 2

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• Bearings are constrained elements used to reduce the friction of certain moving parts in a machine or device.
• This is done by replacing sliding friction with rolling friction.
• Bearings are used to provide better linear motion or rotation around a fixed axis.
• Roller bearings are typically cylinders similar to free rollers, except that they are constrained in their motion.
• Ball bearings are spheres that are held in a track.