Shaft Assembly for a Gas Turbine Engine

摘要

A shaft assembly for a gas turbine engine that includes a shaft (12) with a threaded shaft segment (32), an annular rotor (14) disposed on the shaft (12), and annular stack nut (24). The stack nut (24) includes a base nut segment (54) and a clamping nut segment (56). The base nut segment (54) includes a threaded nut bore (62) that is mated with the threaded shaft segment (32). The clamping nut segment (56) axially extends from the base nut segment (54) to a load bearing surface (70). The clamping nut segment (56) includes a radial thickness that decreases as the clamping nut segment (56) extends from the load bearing surface (70) towards the base nut segment (54). The load bearing surface (70) exerts a force against the rotor (14), securing the rotor (14) to the shaft (12).