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Stainless Steel Discs in Factory-assembled Cartridge for Medium-duty Applications

John Crane’s Metastream T Series metallic membrane couplings, incorporate scalloped, stainless-steel, flexible membranes.  This design gives the most flexible solution for high-torque and misalignment conditions.  The range of TSK/TSC has been specifically designed to meet the exacting standards of API 610 (ISO 13709) and ISO 14691.  With an excellent power to weight ratio and fit-and-forget reliability, the TSK/TSC coupling is ideally suited to meet the pumping, motor, and turbine drive power transmission in oil and gas, petrochemical, power generation, and other critical process industries.


TSC/TLC TDS TSCS IOM Extended Guard Ring IOM

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  • California Residents: PROPOSITION 65 WARNING
  • Easy to fit
  • Intrinsic balance meets AGMA class 9
  • Ideally suited to pump applications
  • High misalignment capability.
  • Low imposed forces on machinery, leading to reduced machinery vibration and maximized bearing life.
  • Stainless steel flexible membranes for maximum life.
  • Cartridge transmission unit eases assembly and gives repeatable balance.
  • Overload collars are fitted to protect the flexible membrane in case of severe torsional overload.
  • Anti-fly retention of the spacer in the unlikely event of membrane failure.
  • Puller holes incorporated into hubs as standard.
  • Self-locking feature for security allows the bolts to be used repeatedly without compromising their integrity.
  • Compression and jacking bolt features for easy installation and removal of spacer assembly as standard.


Maximum Shaft


Maximum Torque

13,369 Nm (118,300 lbf in)

Peak Overload Torque

33,423 Nm (295,800 lbf in)

Speed Limits

25,500 rpm

Temperature Limits

-67°F to 302°F/-55°C to 150°C

Recommended Applications

  • Process pumps
  • Electric motors
  • Gearboxes
  • Steam turbines
  • Centrifugal compressors
  • Other compressors
  • Driven machinery
  • Other rotating equipment
  • Generators

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