Gears are very useful components which transmits motion and power in mechanical power transmission system and
industrial rotating machinery. A spur gear generally is subjected to two types of stresses i.e bending stress and contact stress which
causes tooth failure during meshing with another gears tooth.Surface wear is considered to be one of the four major failure modes
in gear systems, the other three being tooth bending, fatigue, contact fatigue, and scoring. Gears are subjected to large amount of
wear while in motion