Non-Recirculating Roller ScrewTechnology #ua13-057
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Title: Non-Recirculating Roller Screw
Invention: This technology was developed as a key element of the camera focusing mechanism for NASA’s OSIRIS-REx mission led by the University of Arizona, which was recently launched on a sample retrieval mission to the near-earth asteroid Bennu. This invention meets the demanding requirements of the OSIRIS-REx mission including high precision and reliability as well as low power and has other significant advantages that can be applied to a wide range of commercial applications.
Background: Existing precision roller screw products cannot stand up to the demanding requirements for the OSIRIS-REx spacecraft for precision, reliability and power. These issues led NASA to look to the University of Arizona to create the non-recirculating roller screw that was suitable for the environment and length of the OSIRIS-REx mission.
- Industrial/manufacturing equipment control
- Factory automation
- Volumetric filling
- Positioning systems
- Lower cost to manufacture, use and maintain
- Higher reliability and longer life
- Less power required for the given load
- Requires fewer parts
- Less complex to assemble and reassemble
- Minimizes lubricant, debris and galling
- Possesses less torque