A study on force-fitted spur gears in consideration of contact condition (On the internal pressure at the fitting surface and root stress of gear tooth)

Abstract

The present experiment has been carried out for the purpose of analyzing (by F. E. M.) in detail, stresses (displacement) at the circumference of the fitting surface, and stresses at the root fillet of the tooth of a force-fitted spur gear, in consideration of the elastic contact condition of the two parts (gear rim and shaft) and the shrinkage of the fitting shaft diameter. Moreover, from these analytical results, the practical formula of internal pressure at the fitting surface was discussed.