Bulk Metallic Glass Planetary Gearboxes for Cryogenic, Unlubricated Spacecraft Applications

In this Phase I SBIR program, Amorphology proposes to develop, characterize and test an unlubricated (and also dry lubricated) two-stage planetary gearbox (22 mm, two-stage, 19:1 reduction ratio) fabricated using bulk metallic glass (BMG) planet gears, pinon gears, and sun gear. The gearbox will be characterized without liquid lubrication compared to a steel and plastic version and then life-tested at -50C under a variety of torques, speeds and operating conditions. Amorphology currently develops BMG gear technology for variousnbsp;applications, where unlubricated operations, low-cost manufacturing through injection-molding technology, and high-precision gears offer new actuator capabilities innbsp;the aerospace industry, the medical device industry, the food service industry, and various robotic applications.nbsp;nbsp;