Question

how can u minimise the rolli ng friction?
tell fast​

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.

Answer 2

Answer:

By polishing the surface,as polishing makes the surface smooth and friction can be reduced.Using lubricant such as oil or grease can reduce the friction between the surfaces. When object are rolled on the surface ,the friction between the rolled object and surface can be reduced by using balk bearings.