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Game Changing Development

Bulk Metallic Glass Gears (BMGG) (BMG)

Active Technology Project

Project Introduction

Bulk Metallic Glass Gears (BMGG)
More science can be accomplished on icy body missions, like those to Europa (~90 Kelvin surface temperature), if spacecraft mechanisms can operate without power consuming heaters. NASA's newly invented bulk metallic glass (BMG) alloys are promising for these heater-less mechanisms. We are developing and testing unheated planetary and strain-wave gearboxes, made from these new materials, to enable extreme cold environment mechanisms, reduce power consumption by up to 950 W-h/day for an MSL type rover, save ~7 kg in ancillary electronics mass, and increase science return. More »

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