Bearings

Since Murphy or whoever it was, took credit for the round wheel, rolling technology has changed somewhat. Today, friction whether static or dynamic, is reliant on bearings to reduce motor or engine load. What is sometimes overlooked is the inherent features and design of a bearings to reduce temperature where it is not necessary. The basic requirement is to reduce contacting surface areas. More extreme requirements are to reduce vibration, reduce allotted space required to house such a bearing, and extend their life. Needle roller bearings are used where the load is spread length ways, and a typical or common application would be the