FLENDER Helical Gear Units with Large Center Distance

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Flender gear units for lifting and luffing gears

Precision and reliability for high performance

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Flender gear units for lifting and luffing gears are economical and efficient. Alongside the extensive range of extremely compact standard gear units Flender offers application-specific gear units with a large overall center distance that enable parallel fitting of motor and winding drum, even with large drum and motor diameters. The gear-unit series is ideally suited for operation on container cranes and bridge cranes, that is, where a parallel motor-and-winding-drum arrangement is required. Flender industrial gear units for lifting and luffing gears are available in a broad transmission range for torques ranging from 10,000 up to 1,400,000 Nm.


  • High torques
  • Great center distance possible without special solution or size difference
  • Easy selection by means of gear unit dimensioning in Flender configurators
  • Drive and output shafts designed for high additional forces
  • Optimised gear-unit elements for highest possible peak loads
  • Reduction of mass moments of inertia
  • Torsionally rigid welded steel housing
  • Large transmission area


  • Container cranes
  • Bridge cranes
  • Casting cranes
  • Tower slewing cranes
  • Offshore cranes
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