H-F
Factory-assembled Transmission Unit with High-torque Capacity and Low Weight (API 671, ISO 10441)

H-F couplings can be readily adapted to match the integral shaft flanges used on many large gas and steam turbines. On some applications, an H-F turbine end drive is combined with a reduced moment arrangement at the compressor end. The transmission unit is simple to install and remove for rapid separation of the two machines, providing easy access for alignment and equipment maintenance.

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Features
- California Residents: PROPOSITION 65 WARNING
- The flanged H-F transmission unit can be readily adapted to match the integral shaft flanges used on many large gas and steam turbines.
- On some applications, a H-F turbine end drive is combined with a reduced moment arrangement at the compressor end.
- The transmission unit is simple to install and remove for rapid separation of the two machines, providing easy access for alignment and equipment maintenance.
- Arrangements for larger diameter shafts and integral shaft flanges.
- Unitized assembly for high standard of balance and utmost reliability.
- Full compliance with ISO10441 (API 671) — no exceptions.
- Built-in safety with emergency backup drive.
- Shrouding to minimize windage effect.
- Flexible discs visible for easy inspection.
- Factory assembled hub/flex element units.
- High-reliability stainless steel flexible disc design.
- Shrouded bolts to reduce windage.
- Built-in overload collars for additional safety.
Parameters
- Maximum Shaft
- 18"/450mm
- Maximum Torque
- 580,000 Nm (5,130,000 lbf/in)
- Speed Limits
- 28,000 rpm
- Temperature Limits
- -65°F to 300°F/-55°C to 150°C
Recommended Applications
- Process pumps
- Electric motors
- Gearboxes
- Steam turbines
- Gas turbines
- Centrifugal compressors
- Other compressors
- Other rotating equipment
- Generators
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