Composite couplings combine advantages of steel and elastomers

June 6, 2002
Steel couplings have the torsional stiffness to handle servomotors, line shafts, and other equipment, and they help avoid resonance problems in high-speed machines.

Steel couplings have the torsional stiffness to handle servomotors, line shafts, and other equipment, and they help avoid resonance problems in high-speed machines. But they can't handle angular or parallel misalignments. Elastomeric couplings, on the other hand, can cope with misalignments and eliminate corrosion or fretting problems, but don't have the stiffness for some applications. To bridge the gap, Zero-Max, Plymouth, Minn., has developed a CD line of couplings that use an open-arm disc pack made of rugged composites. It lets the couplings handle misalignments -- up to 3° angular, 0.025-in. parallel and 0.160-in. axial for the Single Flex models; and up to 0.89-in. parallel and 0.32-in. axial for Double Flex models -- and are stiffer than elastomeric couplings. CD couplings also resist chemicals and water in hostile environments, a characteristic neither steel nor elastomeric couplings have. Custom composite discs offer a range of stiffness and flexibility combinations to meet specific application needs. Four different hub styles are available, including hubs for standard and over-sized bores, as well as clamp style and quick-disconnect hubs.

Sponsored Recommendations

How to Build Better Robotics with Integrated Actuators

July 17, 2024
Reese Abouelnasr, a Mechatronics Engineer with Harmonic Drive, answers a few questions about the latest developments in actuators and the design or engineering challenges these...

Crisis averted: How our AI-powered services helped prevent a factory fire

July 10, 2024
Discover how Schneider Electric's services helped a food and beverage manufacturer avoid a factory fire with AI-powered analytics.

Pumps Push the Boundaries of Low Temperature Technology

June 14, 2024
As an integral part of cryotechnology, KNF pumps facilitate scientific advances in cryostats, allowing them to push temperature boundaries and approach absolute zero.

The entire spectrum of drive technology

June 5, 2024
Read exciting stories about all aspects of maxon drive technology in our magazine.

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!