F.A.Q.


Aerospace Technology
  • 1045 carbon steel
  • CNC machined cut to precision
  • QPQ coating (Harden Surface up to 3X Carbon Steel)
  • QPQ has superior wear resistance, improved fatigue strength, extreme corrosion resistance
Stud Shear Strength
  • (4) 1/2″ Studs
  • 60K KSI M.Y.
  • Shear Strength 3,682 lb-ft Torque
Plate Stud Hole Bearing Strength
  • 3/8″ Plate (36K KSI M.Y.)
  • (4) 1/2″ Studs (60K KSI M.Y.)
  • Bearing Strength 3,446 lb-ft Torque
Spline Bearing Strength
  • 6 Spline
  • 90K KSI M.Y.
  • Bearing Strength 4,187 lb-ft Torque
Spline Shear Strength (TYP greater than bearing)
  • 6 Spline
  • 90K KSI M.Y.
  • Shear Strength 5232 lb-ft Torque

Torque Calculation

John Deere 5E Series 50-100HP,5M Series 75-115HP, 5R Series 90-125HP, 6R Series 105-135HP

  • Reference (5R Series) 5125R Tractor Engine, 125 Engine HP/ 110HP @PTO
    • 110HP @2200RPM =267 lb/ft Torque
    • 110HP @1600RPM = 361 lb/ft Max Torque Output
  • *Current design can handle Tractors up to 95HP
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