[Reports] / Amer.inst.of aeronautics and astronautics. N 89-2819 : Surface fatigue life of carburized and hardened M50NiI and AISI 9310 spur gears and rolling-contact test bars : Rep. presented at the AIAA/ASME/SAE/ASEE 25th joint propulsion conf.,Monterey(Ca),July 10-12,1989 / D.Townsend,E.Bamberger, 1989. - 9 p. - Текст : непосредственный.