Nexen Group (Vadnais Heights, MN) has announced a harmonic gearhead that directly replaces much larger, high-ratio planetary gearheads utilizing the latest harmonic strain wave gearing technology. In addition to its compact size, the gearhead features high torque, true zero backlash, and positional accuracy. A gearing-forward design overlaps components and allows the gearing to be integrated into the same plane as the bearing, resulting in a short and rigid gearhead. This narrow, rigid design is combined with a large, rugged, crossed-roller output bearing, designed to handle all combinations of radial, axial, and overturning moment loads in a single, compact envelope. The gearhead can fit virtually any machine, and can operate in less than half the space of conventional planetary gearheads.