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Angular gears, heavy version

Flexibility due to various installation positions

Technical features of QB series:

  • With aluminium housing
  • Maximum output: 1120 kW
  • Maximum torque: 9940 Nm
  • Transmission ratios of up to 2/1
  • 8 construction dimensions


Technical features of BG series:

  • With housing in sturdy cast-iron construction
  • Maximum output: 344 kW
  • Maximum torque: 2700 Nm
  • Transmission ratios of up to 5/1
  • 8 construction dimensions


Benefits to you at a glance:

  • Short delivery times
  • High degree of economy
  • High efficiency
  • Can be used in various installation positions
  • Particularly heavy duty and reliable
  • Equipped with spiral-toothed bevel wheels and quality ball bearings as standard
  • Precise and low-noise running
  • Also available with a stainless steel shaft
  • Can be combined with all commercially available IEC flange motors


Bevel gears are the optimum drive element when torques, force and motion must be transferred at an angle and high levels of efficiency are required. The heavy-duty Walther Flender angular gears can be deployed in various installation positions and offer unusually precise and low-noise running. Due to this and their fast availability, our angular gears are an economical solution for the most varied drive tasks.
We can offer you the Walther Flender angular gears of the BC, QB series in 8 sizes, in various shapes and with 6 transmission ratios. The cube-shaped housings of the angular gears in the heavy version are sturdy cast iron or aluminium, are worked on all sides and are equipped with threaded boreholes to allow them to be fixed in any position. The spiral-toothed bevel gears are made of high-quality steel with a GLEASON tooth system and are case-hardened.
Our angular gears are designed in accordance with the modular principle, as is the entire WF gearbox range. They are particularly suitable for such uses as printing presses, automatic units, in the food industry, conveyor technology, the packing industry and general machine construction.
An optimum gearbox selection can never be made across the board; it must be based on the individual requirements of the application in question. If a specific gearbox is selected, the efficiency of the entire drive train is improved. Our application technicians will be happy to advise you in the selection of the right gearbox for your requirements. Just come and talk to us!