LOAD AND STRESS VARIATION ALONG HELICAL GEAR TEETH

A criterion for calculating load distribution on contact lines of heli cal gear teeth is introduced. The criterion which is based upon stiffn ess calculations assumes that the sum of tooth deflection, profile mod ification and machining errors at the pairs of contacting teeth are al l equal. It is also assumed that the sum of the normal loads contribut ed by each pair of contacting teeth is equal to the total normal load. Once the individual tooth loads are determined, fillet and contact st resses are determined from the applied load and tooth geometry. A deta iled example is outlined to explain the criterion. Experimental substa ntiation is also presented to prove the validity of the criterion.