Triumph Gear Systems - Macomb is a company that specializes in the manufacture, testing, and assembly of gearbox and transmission assemblies. It offers accessory gearboxes, inlet gearboxes, propeller gearboxes, power take-off assemblies, detail gears and housings, and other products. The company also provides CNC bevel cutting and grinding, CNC milling and turning, jig grinding and broaching, surface grinding, and other services.