A TRIBOLOGICAL ANALYSIS OF HELICAL GEARS WITH SMALLER NUMBER OF TEETH

摘要

In the paper, the condition and the causes of the failure modes of cylindrical gears are defined in selection to the most important running surface parameters of contacting teeth. Included are Hertz contact stress, minimum film thickness, tooth temperature rise. An improved analytical model is used by considering the load sharing ratio and specific kinematics of gear pairs. The aim of this paper is to accurately define the condition and causes of the failure modes to be able to determine corrective actions for analytical methods used in the design of cylindrical gear pairs. A parametric study is conducted for helical gear pairs with smaller number of pinion teeth.