Many groups of digital gear faces with error is simulated

and the influence of load-bearing properties is tudied if the error along the high

along the length and integrated.On the assumption that the evaluation criterion of gear bearing performances is the relative offset of the contact pattern and the fluctuation of transmission error under load

after further analysis

appropriate tooth surface error distribution scope-numerical standard gear is obtained

so that the gear will meet the dynamic demand of contact pattern and transmission error

in the same condition

if its’ error distribution falls within the scope.