A four-square power circulation type layout is employed.
Special attention is given to isolation of the test gears from the reaction side.
Special features include variable test shaft length and flexibility for geared rotor dynamics studies and shaft misalignment capability for study of misalignment effects. The data collection and analysis is fully automated to obtain complete frequency response data. CGR also has a collection of more than 100 precision spur and helical test gears representing a large range of design parameters and tooth modifications.