Medical devices, test benches or machine tools: All of these applications must be connected to the drive train with as little play as possible in order to fulfill their function. If the radial or angular misalignment is too large, reliable operation is no longer guaranteed. Minor deviations can be compensated for with standard couplings. If the radial or angular misalignment exceeds a certain level, the forces acting on the shaft bearings when the drive elements are rigidly connected will be so great that they will wear heavily under continuous load. This also affects the seals and the couplings themselves. To prevent these components from being subjected to excessive stress, the shaft misalignment should be compensated for as far as possible.

KBK Antriebstechnik has developed the KBGK and KBGK-T articulated couplings to meet these requirements. The KBGK compensates for high radial and angular misalignment and has extremely low restoring forces, further reducing the bearing load. Just like the KBGK, the KBGK-T is designed to be fatigue-resistant, rigid and virtually backlash-free thanks to special bushes and guides. Both clutch types are manufactured to a high standard and are made of aluminum (hub, inner ring) and steel (pins). Both elements are torsionally rigid couplings - they are torsionally rigid in the circumferential direction and flexible in the radial and axial directions.

The high compensation capacity of the articulated couplings is also suitable for applications in which the shaft misalignment that occurs cannot be precisely estimated in advance. Metal bellows and elastomer couplings are unsuitable for these applications as they would wear out quickly due to the high load.

The KBGK was specially developed for the precise fastening and positioning of linear motors, for example in welding, cutting and bending systems, in the textile industry or in machine tools. Depending on the size, the KBGK can absorb axial forces of between 200 and 13,000 newtons and is manufactured with external diameters of 18 to 100 millimetres. The KBGK can also be used as a transmission coupling to connect two shafts with minimal backlash.

The type KBGK-T is suitable for use in servo and stepper motors and transmits torques between two and 580 newton meters with absolute precision, reliably compensates for even large angular and radial misalignments and can firmly connect two shafts together. pb