Needle Bearings In Epicyclic Gearing For The Earth Moving And Agricultural Tractor Industries

Power shift transmissions used in off-highway agricultural and construction tractors are subjected to rugged duty and the planetary type using needle bearings has proved its reliability when good design practices are followed. This pa per reviews the types of bearings, design data, and applications, and provides the formulas used in calculating speeds, loads, and shaft slopes in planet gears. Discussion of the subject matter by representatives of other companies in the industry conclude the paper.