<div class="htmlview paragraph"><b>THIS paper discusses the most recent developments and best practice in both the design and manufacture of hypoid gears and axles.</b></div> <div class="htmlview paragraph"><b>Due to improved machines, methods, and materials, hypoid gears now are being produced to higher standards of accuracy and precision than has heretofore been possible to produce any type of rear-axle-drive gears.</b></div> <div class="htmlview paragraph"><b>To utilize such improved gears to the greatest advantage, similar advances are being made in the design and manufacture of hypoid axles. Greater rigidity of the gear mountings and the highest possible degree of precision in producing uniform axles are required, as well as proper provision for control of the tooth bearing in assembling the axle.</b></div> <div class="htmlview paragraph"><b>Latest methods for producing hypoid gears are discussed, including an analysis of the Formate type of gear. A summary of the results of a number of deflection tests on various types of axles serves to illustrate various factors entering into axle design.</b></div>