Abstract
Hypoid gear's running performance (vibration, noise, efficiency, etc) is evaluated on a gearbox test facility. This gearbox test facility operates under the same torque and speed as for automotive drivelines. Various hypoid gears are available with different dimensions. Using the gearbox test facility hypoid gear meshing noise and vibration can be measured. Hypoid gear meshing noise is related with gearbox vibrations , gear blank vibrations and torsional vibrations of test facility driveline. The relation between hypoid gear meshing noise and transmission error, hypoid gear pinion offset and transfer torque has been studied.