Compact and light weight backlash-free safety clutch

Written by: KTR Couplings Ltd | Published:

New backlash-free safety clutch SYNTEX® NC offers reliability, high power density and a low mass moment of inertia, helping to avoid lengthy standstill periods and expensive repairs via quick reactions to overloads and clearing of residual torque through its patented system of punched and pre-stressed disk spring serving as an overload element.

A hybrid design with different materials in combination with wear-resistant surface coatings results in a significantly higher power density along with a lower weight yet still achieving a very high repeating accuracy.

The operating mode of torque limiting systems is easy to describe. If overload arises during the operation of the machine, in cases of a failure, the SYNTEX® NC uncouples driving and driven side, in this way preventing serious damages on the drive train.

Pre-stressed disk spring: A backlash-free and safe connection
Apart from the quick reaction that the arrangement of SYNTEX® ensures, the coupling also offers totally backlash-free torque transmission with a very high repeating accuracy and an extremely compact design. The switching frequency is actually almost unlimited and the releasing torque set once remains constant. In addition, a signal can be activated by a limit switch, notifying the decoupling to the drive control. In this way the pre-requisite is created to switch off the drive immediately in case of overload. The connection between the overload coupling and the shaft is usually realized by a backlash-free, frictionally engaged clamping connection.

Safety clutches are often offered in combination with backlash-free servo couplings. That is why KTR provides the SYNTEX® NC in combination with the backlash-free, flexible ROTEX® GS and the very compact, torsionally stiff RADEX® NC. Apart from that a usual crown gear, for example, can be directly connected with the safety clutch.

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