Failure And Wear Rate Analysis.

Wear is described or dedined as loss of materials from the contacting surfaces of the gear teeth or slow lossing of metal from the contacting surfaces at a rate that will not affect satisfactory performance with the expected design life of the gear. They are described as follows.
1.Robbing wear which is the result of normal wear in the machine.
2. Cutting wear which is caused by one surface penetrating another machine surface.
3.Rolling fatigue which is primary result of rolling contact within the bearing
4.Combine rolling sliding wear which is result from moving of contact surfaces within a gear system.
5.Severe slidding wear which is caused by excessive loads or heat in gear systems.