Manufacturing Technology and innovation

Bearing is one of the best invention of human being, which not only make work easy for humans but also reduce power and increase the life of movable parts. Some form of bearings is used from ancient times, but actually bearing is invented around 17th century. In 1974 Philip Vaughn got patent for first ball bearing. Word bearing is come from "to bear", as it bear load and friction.  Uses of bearings : Bearings are used in every rotational part from big turbines to small toys for kids, it is used in industries as well as household applications, used by farmers and doctors. Every day we use bearings in one or other form. Their is huge range of bearings, one bearing is so small that it can fit on nail of little finger, other one is so big that a human being can easily cross from inside. Bearings are used in every application where rotation is involved, but Still we are not aware about bearings because bearing is usually fit inside and is packed, so it is not easily seen by peop