H-M High Performance Couplings | John Crane Power Transmission Couplings


High-performance coplanar couplings for turbomachinery with overload torque requirements.

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John Crane’s Metastream® H-M 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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  • California Residents: PROPOSITION 65 WARNING
  • 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

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