H-ME High Performance Couplings | John Crane Power Transmission Couplings
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High-performance coplanar couplings for turbomachinery with overload torque requirements.

John Crane’s Metastream H-ME couplings provide optimal power to weight in API 671 applications with overload torque requirements, by incorporating two technologies in one coupling for greater operational efficiency and improve reliability. This advanced design is able to withstand up to 2 times rated torque caused by unexpected overload conditions.


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  • Large hub-bore capacity
  • Factory-assembled transmission unit
  • High-reliability stainless steel flexible membrane design
  • Torque-overload feature protects membranes and drive bolts
  • Low mass and low overhung moment
  • Optional shrouded bolts
  • Axial shims for length adjustment, when required
  • API 671 (ISO 10441) compliant
  • ATEX compliant


Maximum Continuous Torque

235.6 kNm / 2,085 lb. in.x103

Maximum Overload Torque

400.6 kNm / 3,545 lb. in.x103

Speed Limits

26,000 rpm

Temperature Limits

-55°C to 200 °C / -67°F to 392°F

Recommended Applications

  • Turbo compressor machinery
  • Gas Turbines
  • Steam Turbines
  • Generator Sets
  • Marine Turbine Main Propulsion

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