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Pinion Clutches

The SSS Pinion Clutch is a mechanical turning gear, designed to meet the requirements of a turbine plant where a shaft-​end is not available and therefore, an in-​line turning gear drive and SSS Turning Gear Clutch cannot be fitted. The Pinion Turning Gear assembly can be integrated into the turbine pedestal, or can be mounted on a single plate to be fastened to the pedestal.



  • Uses the same, well proven princliples of the standard SSS Clutch design.
  • Can be fitted to the upper or lower half of the pedestal. If done on the lower half, the upper half of the casing can be removed without disturbing the turning gear.
  • Simple electrical and lubrication interfaces.
  • Can be arranged for the gear reaction to lift the shaft and unload the bearings.