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The Crossflow Aero Corp. Propeller Speed Reduction Unit (PSRU) is an internal spur gear reduction drive of proprietary design that has undergone 3 years of research and development. It has been specifically designed to work with Subaru automotive engines converted for aircraft use by our engineers. The PSRU employs some unique features that we believe make it the best choice on the market for Subaru based aircraft engines:

  • All internal drive components are CNC machined from 4340 certified Aerospace steel billet
  • Gears are nitrided using the controlled Nitreg process resulting in the formation of a hardened surface that reduces fatigue and wear together with improving resistance to seizure.
  • Internal bearings (angular contact and spherical rolling) are Aerospace quality
  • Gears are made to AGMA 10
  • Micro lash adjustment on housing for proper gear tolerances
  • Internal gear design allows for high contact tooth ratio with torque rating of 780 ft/lbs
  • Viton® oil seals to withstand temperatures up to 400°F
  • Anticorrosion nickel-plated prop flange drilled in SAE 1 & 2 or Continental bolt patterns
  • Custom built flywheel with built-in Sachs torsion damper
  • Gear lubrication by fully synthetic lubricants.
  • Built-in oil recirculator
  • Oil temperature probe and gauge incorporated
  • Drive can be used in either tractor or pusher configurations
  • Integrated oil cooler, if required.
 
 
 
 
 

Specifications

Ratio 2.34:1
Rotation Conventional
Configuration Tractor or pusher
Weight 60 lbs
Length 16”
Offset 1.625”
Oil Full synthetic gear lubricant - 1.6 liters

Options

Ancillary Drive Gears To drive a vacuum pump or propeller governor
Hydraulic Collar To control a hydraulic controlled variable pitch propeller
Oil Cooler With recirculating propeller

Prices

Propeller Speed Reduction Unit $5,150.00
Ancillary Drive Gears $1,345.00
Hydraulic Collar $860.00
Oil Cooler $345.00
     
 

For more detailed information about this product please go to the Technical Information section of the website.
Please contact us to inquire about purchasing a Crossflow Propeller Gear Reduction Unit.
All prices are in USA dollars and subject to change without notice and do not include freight, duties or taxes.