Zero-Max Composite Disc (CD) Shaft Couplings combine high performance materials, design features and precision to withstand the rigors of today's most demanding servomotor systems. Precision machined of ASTM A 108 steel and 6061-T6 aluminum, the body components of these CD couplings are inherently balanced. With similar precision, the functioning components of CD couplings are made from precisely oriented and layered composite material similar to those composites used in aerospace applications. To ensure precise alignment of the assembled components, ISO Class 12.9 hardened shoulder bolts are utilized. All precisely integrated CD Coupling design features provide the ideal combination of high dynamic load capacity and high torsional stiffness to ensure reliable system operation. In addition, these couplings have zero backlash, are excellent for reversing loads, provide smooth operation at high speeds, and are compact with a clamping design that fits most applications.

Standard models and sizes include single and double flex models with clamp style hubs with or without keyways. The torque capacities range from 40Nm to 1436Nm and beyond with speed ratings from 4,400 RPM to 17,000 RPM. All CD couplings are environmentally friendly and are manufactured of RoHS compliant materials. "CD couplings have very long life cycles and require less replacement over time," reports Robert Mainz, Zero-Max sales manager. "Their robust design is an extra benefit designers really appreciate because they perform beyond expectations."