Long-Life, Oil-Free Polymeric, Multi-Roller Traction Drives for Planetary Vehicle Surface Exploration, Phase I

Metadata Updated: May 2, 2019

Multi-roller traction drives have several advantages relative to geared units for aerospace and commercial drive applications. Among these are zero backlash, low torque ripple, compactness, light weight, and unlike gears, the potential to operate without liquid or grease lubrication. Current traction drives are made from heat treated bearing steels and require special traction fluids which limited their use to terrestrial applications. Space applications such as planetary vehicles operate in hostile environments. Innovations in material technology for non-lubricated operation will be required in order to benefit from the inherent advantages of traction drives relative to gears. Phase I work of this proposal will provide the basis for alternative nonmetallic materials to be substituted for bearing steel. These materials must have low wear but high traction characteristics. The proposed effort under Phase I will be used as a basis for a Phase II effort, in which one or more prototype systems will be designed, built and tested for space exploration applications. Applications include robotic arms, speed and torque balanced drives for scientific instruments and zero torque reaction drives for planetary vehicles.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

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Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_5649
Maintainer Email
Public Access Level public
Bureau Code 026:00
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Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Datagov Dedupe Retained 20190501230127
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Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2006-07-01
Homepage URL https://techport.nasa.gov/view/5649
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-20
Program Code 026:027
Source Datajson Identifier True
Source Hash 99db81080e5ce6da8755b5074dd18e973748eec0
Source Schema Version 1.1

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