The Coupling Halves with multi-spline hubs VK14 and VK32 can be connected with the corresponding Connecting Shafts or mechanical drive elements without the need for machining.

In the case of Coupling Halves with bores, simple machining (reboring, parallel keyway, etc.) is required to ensure they match the drive output shaft of gearboxes/motor drives.

Between the mechanical drive elements (Timing-Belt Reverse Units, Chain Drives, Ball Screw Units, Bevel Gearboxes) and the drive motor, it is possible to use couplings for suppressing and compensating angular errors and radial or axial offset.
The use of couplings means that a plug-type connection is possible between the drive motor and mechanical drive elements, thereby facilitating assembly, machining and maintenance.

The various output shafts of the gears and / or motor drives are easily matched by machining the Coupling Half on the drive side.
Proven, plug-type Multi-Spline Shafts are used between the second Coupling Half and the mechanical drive elements in order to provide a shaft-hub connection. There is no need to machine the relevant Coupling Half or the mechanical drive elements.

In addition to the connection of the rotating elements described above, the casings of the mechanical drive elements must have a static connection to the drives. This is achieved by various Coupling Housings which are adapted in length and diameter to the various couplings. Universal Coupling Adapter Plates, which have to be provided with fastening bores and centring diameters for the relevant drives, enable the drive to be secured to the Coupling Housing.

The connection dimensions and the permissible torque range (M_D < 50 Nm) make Coupling D55 ideally suited for use with Timing-Belt Reverse Unit 8 40 R25 with multi-spline VK14 (Centring Piece D50-D22) and (optionally) Bevel Gearboxes WG (Centring Piece D50-D50: note torque limit 28 Nm!).