These products are designed for highest demands and save the users from excessive costs in case of an overload, the company said.

Depending upon the model size, up to 12 standardized switching units are located on the outer ring of the coupling, which ensures a backlash-free connection and reliable torque transmission between input and output side.

The GWS series works based on a spring-loaded ball-in-detent arrangement. When the coupling is engaged, the steel balls situated within the switching units are forced into a conical detent by spring pressure.

In case of overload, the disengagement torque preset on the switching units is exceeded, the steel balls move out of their detent in axial direction, causing a stable separation of input and output side, thereby interrupting the torque transmission, the company said.

The overload coupling can be returned to operating mode with a few steps so that the corresponding device or machine will be up and running within short time.

A few simple steps are required to change the preset disengagement torque, without dismount of the coupling.

Ringfeder offers three models of its heavy-duty couplings in order to meet different user requirements.

In addition to a coupling model with flange hub and keyway hub (GWS 5420), the portfolio includes a flexible coupling (GWS 5421) and a multiple-disc coupling (GWS 5422), both with keyway hubs on the input and the output side, the company said.

The couplings of the GWS series have an option to be equipped with a switching disc and a mechanical limit switch on the motor side.

The switch signals produced by these mechanisms can be used to switch off the drive and to send out an acoustical or optical signal.

Image: Ringfeder Power Transmission introduces new GERWAH GWS heavy-duty couplings. Photo: courtesy of Ringfeder Power Transmission.