Torsional stiff all steel couplings GMK

All steel couplings of the type GMK are torsional stiff and bending flexible couplings.
All coupling parts are made of high quality steel. The torque range as well as the wide variety of types guarantees a wide range of applications for many industrial purposes.

All steel couplings are torsional stiff and backlash free, at correct application and assembly free of wear, with a high service life Useable for ambient temperatures up to 250 °C.
All steel couplings can compensate axial and angular shaft displacement in single element design (SE) and additional radial shaft displacements in double element design (DE).
All steel couplings lead to slight restoring reactions in case of proper alignment.
All steel couplings can be combined with a lot of other coupling types, for example BOKU-N, TK-N and so on.

Types:

-type DE-AA: standard type – with two elements as well as spacer and outside located hubs;

-type SE-AA: with one element and outside located hubs;

-type DE-AA: standard type – with two elements as well as spacer and outside located hubs;

-type SE-AA: with one element and outside located hubs;

-type DE-II: with two elements and inside located hubs, sleeve not radial removeable;

-type DE-IIG: with two elements, inside located hubs and parted sleeve. Sleeve not radial removeable;

-type DE-K: with two elements, outside located hubs for short design.

The all steel coupling can be delivered in many different special designs according to the customers requirements.

 

Categories: ,

Description

Technical characteristics:

Size range: from 2,5 to 10 000;

Nominal torque range: from 25 to 100 000 Nm.

Material:
-hubs: C45, St 52-3;
-spacer: C45, St 52-3;
-flexible elements: spring steel, corrosion protected.

Permissible ambient temperature -20 °C up to 250 °C, other ambient temperatures on request.
For longer spacer the permissible speed is limited by the weight and the critical bending speed.

Mounting of the hubs:
According to the standard keys will be used for the hub/shaft connection.
For the mounting of the hubs proceed like follow:
-check whether the prescribed combination of fits (hub/shaft) are followed;
-clean hub bores and shafts;
-the hubs have to be pushed on the shaft by using a suitable device, mounting by beating is not allowed;
-in order to facilitate the mounting, the hubs may be warmed up to 200 °C.

Alignment of drive/driven side:

Drive – and driven side have to be aligned axially, angulary and radially. The alignment has to be done in such a way that remaining shaft displacements caused by assembly and operation are smaller or equal than the permissible values stated in the tables „characteristic values“ in manuals.
The remaining shaft displacements should be as small as possible caused by its influence to the service life of the elements and the restoring reactions.

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