Review On- Design And Analysis Of Spur Gear To Overcome Gear Stucking And Scuffing

Mechanical Engineering ( Design Engg.)

Scuffing is a failure that occurs suddenly, resulting incomplete destruction of contacting surfaces such as gear teeth. Scuffing is often characterized as a lubrication failure frequently accompanied by a sudden increase in friction and the instantaneoustemperature at the contact zone. Gear is one of the most critical components in a mechanical power transmission system, and most industrial rotating machinery. A pair of spur gear teeth in action is generally subjected to two types of cyclic stresses: bending stresses inducing bending fatigue and contact stress causing contact fatigue. Both these types of stresses may not attain their maximum values at the same point of contact fatigue. These types of failures can be minimized by careful analysis of the problem during the design stage and creating proper tooth surface profile with proper manufacturing methods. In general, gear analysis is multidisciplinary, including calculations related to the tooth stresses and to tribological failures such as wear or scoring.

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