Diaphragm Couplings

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KOP-FLEX® has innovated an extremely reliable, maintenance free, diaphragm coupling with over 10 million hours of operation. This patented design has eliminated the failure mode and reliability issue with welded design currently available in the market. The entire design was conceived from the state of the art finite element analysis (FEA) and computer aided manufacturing.
  • All couplings are custom designed to meet the specific requirement of the application and OEM – Engineered drive solutions
  • Meets API 671
  • Drop in replacement of Lucas (Bendix) diaphragm coupling – click above for details
  • Marine and Reduced Moment Designs
  • Field replaceable, stockable diaphragm – not available from anyone else
  • Specially contoured one piece design – easy to install, cost competitive and easy to customize
  • Patented one piece design – handles more misalignment and greater range of torsional stiffness
  • Torque capacity over 50 million In-Lb. (5650 kN-m)
  • Shaft diameter over 19 inches (480 mm)
  • Other features: piloted fits, 15-5 pH stainless steel and other material available, shot peened, inherently low windage.
  • Options: Electrically insulated, shear section, back up or fail safe gears, various materials, and many more.