Self-Aligning Bearingless Planetary – SABP 

Transmission Technology, Inc.

Lincoln Park, NJ
 

Transmission concept has no planet bearings and carrier/s and is internally load balanced and self aligning

• Designed, made, and successfully tested six prototype gear drives using SAPB gear arrangements
  
• These modules were rated up to 500HP with input speeds up to 35,350 RPM and gear ratios of 7 to 1, 16 to 1, and 102 to 1 per module
• Results of testing verified engineering analysis, demonstrated stability and viability of the gear drives without planet carriers and planet bearings, and showed significant performance improvements
  

• This gear drive arrangement can be used in all non-angle gear drive applications where speed change of 6 to 1 or higher is required
• As a result of a consulting arrangement with Transmission Technology, a commercial company developed and is  using SABP in off-highway vehicles

• Numerous government applications can use SABP drives including various aircraft/helicopter transmissions, main propulsion gearing for ships and submarines, as well as ship and submarine steering
• Can be used in various science and outer space projects that require a multitude of gear drives

Return to NASA SBIR Success Listings 

Power/Propulsion, Aircraft Systems/Subsystems

Curator: SBIR Support                 5/23/07