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KTR POLY-NORM Coupling is a torsionally flexible, shear type shaft coupling. It has an axial plug-in design with a unique short overall length.
POLY-NORM can be used in nearly all types of machinery and is ideal for the pump industry.
POLY-NORM Coupling compensates for shaft misalignment of all kinds and safely transmits the torque.
The coupling consists of two hubs, with fingers separated by elastomeric elements. The hubs are assembled blindly plugging the hub fingers into each other axially and the elastomer ring is trapped in a groove between both coupling hubs.
The compact POLY-NORM coupling transmits torque with the elastomer in compression. Shaft misalignments, vibrations and shock loads are effectively absorbed by the coupling.
The coupling is maintenance-free and used in general machinery, the pump industry and in compressors. Torques of up to 26.800 Nm are stocked in 17 different sizes and 7 design.
In addition to the standard coupling models, flange drop out center and spacer option are available in many variations.