Reserarch on the Force-Fitted Gear : 7th Report, On the Change of Stresses at the Circumference of the Force-Fitted Part in the Slipping Test

Abstract

The present test has been carried out for the purpose of investigating the change of stresses at the circumference of force-fitted surface caused by a load acting on tooth under running conditions. Momentary change of the stresses when a slip at the force-fitted surface between gear rim and hug occurs and when this slip is repeated three to four times, has been examined. Conclusions are that by a load that acts on tooth contact point, a partial decrease of internal pressure caused by force-fitting at the circumference of the inside diameter of gear rim occurs in the part corresponding to the meshing tooth and that the limit torque for the slip in a driving test of the force-fitting gear becomes much smaller than that in a slipping test of the force-fitting gear becomes much smaller than that in a slipping test under static condition.