scope:

This paper introduces a new gear polish grinding process and describes its multiple benefits to makers of automotive transmissions. First, based on independent scientific studies and customer trials, it will be shown that improved surface finishes increase the overall efficiency of transmissions, which translates into a reduction in torque loss, lower fuel consumption, and lower CO₂ output. The resulting higher bearing ratios reduce micro-pitting, and thus increase the longevity of gears. Secondly, the paper introduces a cost-efficient manufacturing method adapted for large-scale manufacture, as automotive transmission manufacturers need a more suitable method than the time-consuming vibration finishing used in aerospace applications today.