Hybrid Coupling manages torsional vibration in drivetrains.

Press Release Summary:

Combining maintenance-free, non-lubricated MAX-C resilient coupling half with lightweight diaphragm, disc, or gear coupling half, Kop-Flex MAX-C WB manages torsional vibration in drivetrains powered by synchronous motors, variable frequency drives, and diesel engines. Capable of transmitting up to 56,000,000 lb-in. torque, coupling features outer sleeve with bladed ID, inner flex hub with bladed OD, and resilient drive blocks that fill cavities formed when sleeve and hub are mated.

Original Press Release:

Resilient Hybrid Coupling is New Twist for Managing Torsional Vibration in High-Performance Drivetrains

Ideal for VFDs, synchronous motors, and diesel engines, or pulsing loads from reciprocating machinery, mill drives or crushers

FLORENCE KY – The Kop-Flex MAX-C WB hybrid coupling is a new solution for managing torsional vibration in high-performance drivetrains powered by synchronous motors, variable-frequency drives, and diesel engines, or those driving reciprocating machinery or handling shock loads. Developed by the Kop-Flex unit of Emerson's Power Transmission Solutions business, the design combines a maintenance-free, non-lubricated MAX-C resilient coupling half with a lightweight diaphragm, disc or high-performance gear coupling half, depending on the application. The hybrid design matches the advantages of a low-cost, lightweight flexible coupling half for the driven shaft, with the vibration-damping of a MAX-C coupling half on the motor end. The maintenance-free MAX-C dampens high drivetrain torque loads, while the overall hybrid design reduces weight, cost and inertia, eliminating the need for oversized and costlier drivetrain components. Various designs of the engineered hybrid coupling are capable of transmitting up to 56,000,000 lb-in (6383 kN-m) torque. The MAX-C WB is ideal for use in drivetrains for ID/FD fans, torque converters, marine gears, drill rigs, crushers, kiln drives, mill pinions, ship thrusters, centrifugal compressors, and feed rolls.

The MAX-C coupling consists of an outer sleeve with a bladed ID, an inner flex hub with bladed OD, and resilient drive blocks that fill cavities formed when the sleeve and hub are mated. The special Wedge Block cavity design formed by the blades is filled with incompressible elastomer blocks with a Shore "A" hardness of up to 80, allowing tailoring of the block compound for hardness, chemical resistance and temperature resistance. The blocks typically last five years or more and are easily replaced, which makes the coupling "like new."

The MAX-C design is also “Fail Engage”: if an elastomer block fails for any reason, the coupling will briefly transmit torque through the metal-to-metal contact of the interlocking blades which would allow the user to immediately power down the equipment in a controlled manner.  The MAX-C withstands wet, gritty and hot environments.

For more details on the MAX-C hybrid see www.emersonindustrial.com or visit the Kop-Flex site at www.emersonindustrial.com/en-US/powertransmissionsolutions/brands/kop-flex for an overview of the company's product line.

About Emerson

Emerson (NYSE: EMR), based in St. Louis, Missouri (USA), is a global leader in bringing technology and engineering together to provide innovative solutions for customers in industrial, commercial, and consumer markets around the world.  The company is comprised of five business segments: Process Management, Industrial Automation, Network Power, Climate Technologies, and Commercial & Residential Solutions.  Sales in fiscal 2012 were $24.4 billion.  For more information, visit www.Emerson.com.

About Emerson Industrial AutomationTM

Emerson Industrial Automation, a business of Emerson, is a global technology provider that enables productivity, efficiency and quality gains for customers across a spectrum of industries. Our products include alternators, electric motors and drives, electrical distribution devices and mechanical power transmission, fluid automation and ultrasonic joining solutions. Emerson brands include Appleton, ASCO, Branson Ultrasonics, Browning, Control Techniques, Kop-Flex, Leroy-Somer, McGill, Morse, Numatics, O-Z/Gedney, Rollway, Sealmaster, SSB Wind Systems and System Plast. For more information, visit www.emerson-ept.com.


Jackie Catalano

Corporate Manager, Global Marketing Communications

Emerson Industrial Automation

Power Transmission Solutions


Tel:  859 727 5271

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