Good connections thanks to quality
FLENDER GKG cardan couplings are elastic, double-jointed output couplings used to compensate for primary suspension misalignments in the bogie with full torque transmission between the gear unit and the powered wheel set shaft. Flender railway couplings permit very large shaft displacements and allow major misalignments between the axle and the gear unit while generating only very slight reaction forces.

FLENDER GKG coupling parts can be installed individually on the gear unit and wheel set shaft. The coupling parts come with pre-installed self-calibrated spherical bearings with protected rubber elements. These have a long service life of up to one million kilometers of vehicle travel. By screwing the brackets onto the spherical bearing pins, Flender gear units for railway vehicles and railway couplings can be installed simply using standard tools. The spacer automatically centers itself.

Good connections thanks to quality
FLENDER LBK connecting rod couplings have a split spacer and can be connected to the gear unit ultra-compactly. Radially arranged rubber elements create two hinge joints, which also make it possible to replace the elastic elements radially beneath the vehicle.

FLENDER LBK connecting rod couplings are driven using self-centering cyclo-palloid gear teeth in the “axle connection” version and flanged to the drive wheel in the “wheel connection” version.

Additionally, we offer the compact Flender railway couplings LBKZ series. In this case, one half of the coupling is a gear coupling which is integrated into the gear unit.

Good connections thanks to quality
FLENDER MBG membrane couplings are two-part, torsionally rigid all-steel couplings with excellent concentricity and outstanding balance quality because they are balanced together with the motor rotor. The concentricity and balance quality are permanently retained thanks to the optimum centering of the gear teeth on the two coupling halves.

Flender gear units for railway vehicles and railway couplings membrane contour gives them axial yield. The screw fitting makes it possible to detach or connect the motor and gear unit simply without loosening the interference fits. FLENDER MBG couplings are maintenance-free and used to transmit torques and support the motor shaft in the gear unit.

Good connections thanks to quality
Grease-lubricated FLENDER ZBG gear couplings make the best-possible contribution to safeguarding the maximum availability of your rail vehicle. Millions of kilometers of track, icy Siberian temperatures, extreme heat, maximum starting torques and revolution speeds, extremely dusty conditions, axial or radial jolts at high speeds – whatever route you use it on, the FLENDER ZBG is always in its element.

The Flender gear units for railway vehicles and railway couplings have a robust, weight-optimized design. Heavy parts are directly attached to the motor or gear unit shafts; the coupling’s inner components compensate for any operational misalignments so that only the slightest unbalanced forces and oscillations apply. The patented slip hub protects the drive system. Sealed grease chambers prevent the lubricant from escaping and eliminate the potential fire risk.