A technology report series from GAM Enterprises Inc., Chicago, offers ideas on minimizing design and installation time, reducing space requirements, and maximizing motion control or servosystem performance. One report details an independent study on the difference between published and measured torsional stiffness of several servocouplings. Another looks at the design philosophy behind the Dyna Series gearbox, which uses hypoid gearing to deliver high torque throughput and positioning accuracy for high-dynamic servo applications. Future topics include more gear-reducer technology, servo-coupling selection, and the benefits of safety couplings.