This GS series, speed increaser gearbox, is a kind of multifunctional gearbox. It can be uesd both for military and civil. Besides, this equipment is widely used by turbine, gas turbine power generation and the like. Product parameters: 1. High RPM: the max. speed of the series gearbox can reach 8000r/min; the max. peripheral speed reaches 160m/s. 2. High specification: max center distance is 1000mm and max power reaches 96000kW. 3. High precision: the gear precision reaches ISO4-6 grade and the gear dynamic balancing precision reaches ISO0.4-1.6. 4. High-tech: the product is designed by 3-D CAD; the finite element analysis is conducted; modification during gear grinding against thermal deformation on gear profile is applied; the tooth root is strengthened by shot peening; soft ware of calculating sliding bearing capacity and analyzing rotor system dynamics are used. 5. High reliability: lifetime of the gearbox is designed to ten years.