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Text version of the page
POLY-NORM
®Torsionally flexible coupling
Coupling description
® General descriptionKXPOLY ® The POLY-NORM
® coupling is a torsionally flexible, shear type shaft coupling. It has an axial plug-in design with a unique short over all length. The POLY-NORM
® canbe used in nearly all types of machinery and is ideal for the pump industry. The POLY-NORM
POLY-NORM REVOLEX ® coupling compensates for shaft misalignment of all kinds and safelytransmits the torque. Function/Design The coupling consists of two hubs, with fingers separated by elastomeric elements. The hubs are assembled blindly plugging the hub fingers into each other axi-ally and the elastomer ring is trapped in a groove between both coupling hubs. Thecompact POLY-NORM
® coupling transmits torque with the elastomer in compression. Shaft misalignments, vibrations and shock loads are effectively absorbed by the POLY-NORM
® .The coupling is maintenance-free and used in general machinery, the pump industryand in compressors. Torques of up to 26,800 Nm are stocked in 17 different sizes and7 designs. In addition to the standard coupling models, flange drop out center andspacer options are available in many variations. Explosion-roof use POLY-NORM
® couplings are suitable for the use in drives in hazardous areas. Thecouplings are certified according to EC Standard 94/9/EC (ATEX 95) and belong tocategory 2G/2D, are confirmed and thus suitable for the use in hazardous areas ofzone 1, 2, 21 and 22. Please read our information in the respective Type ExaminationCertificate and the operating and mounting instructions under www.ktr.com. Variety of Options The coupling can be adapted to many applications due to the many options that arepossible with the building block arrangement. The POLY-NORM
® components of a given model can be mixed and matched with each other to obtain different shaft distances using the same basic component. On request, we can provide customized variations of the POLY-NORM
® to fit your needs – for example, our POLY-NORM
® overload coupling with RUFLEX
® torque limiter. Just ask us! 49