Zero-Max News

Zero-Max CD® Couplings With Aluminum Hubs Have Low Weight And Low Inertia – Ideal For Servo Motor Applications

Sep 01, 2009

Plymouth, Minnesota: Zero-Max CD® couplings with aluminum hubs have low weight and low inertia making them an excellent choice for servo motor and other precision motion control applications.

Available in single and double disc pack models, these couplings have high torsional stiffness and zero-backlash. These aluminum hub CD couplings provide the same torque as the steel hub versions along with a 15 to 20% increase in the couplings' RPM rating for most models.

Both single and double disc pack models combine the best features found in steel disc and elastomeric couplings through the use of a patented open arm disc design made of rugged composite material. This unique design provides the high misalignment capacity found in many elastomeric couplings but with higher torsional stiffness.

Compared to steel disc couplings, CD couplings with aluminum hubs offer superior damping and isolation of shock and vibrating loads, including elimination of fretting corrosion and dramatic reduction of stress fractures at the bolt hole locations. The CD coupling also provides excellent chemical and moisture resistance in hostile environments that prove difficult or impossible for elastomeric or steel disc couplings.

The aluminum hub CD Single Flex models are available in either clamp style or keyway with set screw style hubs from 1.85" to 6.00" diameters. They handle speeds from 5,200 to 17,000 RPM and have torsional stiffness of 1,800 to 41,485 in-lbs/Deg depending on size.

The aluminum hub CD Double Flex models are available in either clamp style or keyway with set screw style hubs from 1.85" to 6.00" diameters. They handle speeds from 4,400 to 17,000 RPM and have torsional stiffness of 850 to 20,196 in-lbs/Deg depending on size.

CD couplings are also available with custom designed disc packs for virtually any type or style of application.