FEA Maximizes Flex Life of New Coupling

There is a world of difference between the flex life of a Dura-Flex® elastomeric coupling from Huco Dynatork and that of its competitors. Finite element analysis has resulted in its profile providing an optimum material to strength ratio. Alternatives by comparison are less sleek. This is important because rather than additional construction material contributing to the couplings’ strength it simply makes them more stiff.

Thanks to its superior design Dura-Flex® accommodates significant misalignment and minimizes torsional vibration whilst maintaining its torque capacity. The prevention of damage to connected equipment and the long service life of the coupling are the clear benefits. The Dura-Flex® split-in-half element design allows for easy element installation and replacement without the need to move connected equipment or disturb the shaft connection. The in-stock, versatile spacer design can accommodate many configurations with a minimum number of parts.

The urethane bond to the leading edge of the steel shoe that is bolted to the coupling’s hub is a patented design. This minimizes bond stress, extending the service life of the coupling. The polyurethane flex element also provides superior resistance to harsh environmental conditions and chemicals. In house tests placed Dura-Flex® and competitive brand couplings in an environment, whose temperature was 120°F with relative humidity at 78%. After 18 months Dura-Flex® remained intact whilst all the competitors’ couplings tested had substantially degraded.

As a result Dura-Flex® is ideal for a wide variety of arduous applications in water treatment, paper and metal processing, power generation and materials handling. It is best suited to the uniform to heavy shock loads characteristic of pumps, fans/blowers, compressors, electric motors and conveyors. Fully interchangeable with other industry standard designs, Dura-Flex® is completely maintenance free. Bore-to-size, Sure-Grip bushed and Taper-Lock® hubs can be specified.

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