Question

in May machines friction
tion is reduced by using:​

Answer 1

Answer:

There are several ways to reduce friction: The use of bearing surfaces that are themselves sacrificial, such as low shear materials, of which lead/copper journal bearings are an example. Replace sliding friction with rolling element friction, such as with the use of rolling element bearings.

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Answer 2

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use lubricant to reduce friction....

or

by using smooth surface....