In order to study and simulate the impact of tolerance on gear performance

a method to establish a gear model containing the total deviation of tooth profile is studied based onmathematical model of tolerance modeling.Taking the accuracy of 5 involute spurgear as an example

Imageware and UG software are utilized to establish such a gearwith geometric deviation.Finally

tooth deformation and contact stress are analyzed on different precision gear models by the use ofANSYS.The results showthatestablishing amodel containing the geometric deviation information is feasible.Meanwhile

according to the resultof the finite element analysis

we can determine a reasonable gearprecision.