Importance

Loading Importance Indicators...

Abstract

Rotational systems comprising multiple interconnecting rotational elements such as gears or traction rollers, and more particularly rotational systems wherein the interconnecting rotational elements are configured to operate for extended lifetimes are provided. The rotational systems may be planetary comprising a central sun element, and outer or ring elements, and two or more planet elements interconnected between the sun element and outer or ring element. Rotational elements within the systems may be formed of materials that interact to allow for extended operational lifetime and/or operation in extreme environments or without lubrication. The plurality of elements may be formed of hybrid materials with different hardness and modulus properties, including steels and bulk metallic glasses.

Loading the Abstract Image...

First Claim