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Huco Multi-Beam Couplings for Tractor Transmission
The CLAAS Group is one of the world’s leading providers of harvesters, tractors, sowing
machinery and agricultural systems. CLAAS Industrietechnik GmbH, based in Paderborn,
Germany is part of the CLAAS Group that focuses on drive technology including
gearboxes and hydraulics.
CLAAS Industrietechnik needed a coupling solution for use in the transmission for its
newest range of ARION 500/600 series tractors. Having identified a contamination issue
caused by the ‘as-machined’ delivery condition of many manufacturers’ standard couplings,
CLAAS approached Huco for a specialized solution which would perform reliably.
The function of the coupling is to transmit rotation from the electric positioning motor to
the hydrostatic module within the power-split transmission. The coupling has to provide
elastic transfer of the forces and, because it’s operating in a hydraulic system, it needed
to be contaminant-free.
Engineers at Huco Dynatork were immediately able to recommend its multi-beam
couplings to perform as required within the gearbox. The coupling’s helical-cut design
provides a higher torque capability and reduced backlash when compared to single beam
couplings and will readily accommodate axial motion and angular & parallel misalignment.
Huco was able to offer its stainless steel multi-beam coupling complete with a full
deburring and cleaning service. As a result, there were no issues with swarf or metal
chips contaminating the hydraulic system.
- 6-Beam, double flex,
- Helical cut design provides
high torque capability
& reduced backlash
- Accommodates axial
motion, and angular &
- 303 Stainless steel
fully deburred and cleaned