Rolling friction behaves similarly to kinetic friction. Here as well, the frictional force is proportional to the normal force, and the proportionality constant is called the coefficient of rolling resistance.
Rolling resistance arises because neither the rolling object nor the surface it rolls on is perfectly rigid. Both undergo slight deformations. In addition to elastic deformations, plastic deformations also occur, which lead to energy loss. Examples include deformations in car tires or railroad tracks.
Nevertheless, rolling friction is generally much smaller than kinetic friction. This effect is exploited in ball bearings, which offer significant advantages over plain bearings due to their reduced friction.