Needle Bearings in Farm Tractor Drivelines

Prior to the late 1940's, there were not many application of needle bearings in farm tractor drivelines. However, when more expanded performance was demanded of farm tractors, modern technology necessitated a new look at their use.

This paper discusses the newer applications of needle bearings, dealing with the most basic types and uses. Requirements are listed and speeds and loads to which they are exposed are summarized.