Question

Methods adopted to reduce friction?

Answer 1

There are several ways to reduce friction:

1. The use of bearing surfaces that are themselves sacrificial, such as low shear materials, of which lead/copper journal bearings are an example.
2. Replace sliding friction with rolling element friction, such as with the use of rolling element bearings.

Answer 2

Answer:

• By using lubricants: friction increases as the roughness of the surface increases. ...
• Polishing surfaces: It makes the surfaces even and hence reduces friction.
• By using ball bearings: Rotating machines can be mounted on ball bearings. ...
• By streamlining: streamlining reduces the area of contact and thus reduces friction.