The document discusses GAM's Dyna Series right-angle gear reducers, which use hypoid gearing to achieve high ratios and efficiencies. The Dyna Series can achieve ratios up to 15:1 in a single stage and up to 100:1 in two stages. It is available in different configurations, including single output shaft, hollow bore output, and dual output shafts. The flagship DSX model features ground gears for improved performance. Key features include high ratios, efficiencies, loads, and low backlash.