Plymouth, Minnesota: Zero-Max CD® Couplings have increased versatility using the new QD hub and bushing model. With this new design, one size CD coupling can accommodate a large range of QD bushing bore sizes, making ordering, delivery and installation fast and easy.
Available in Single Flex models which provide misalignment up to 3° angular, 0.025” parallel and 0.160” axial, as well as Double Flex models providing misalignment up to 3° angular, 0.089” parallel and 0.32” axial.
The QD hubs are precision machined steel and are featured in the CD Coupling Single and Double Flex models from sizes 37 through 77. Standard QD bushings in either inch or metric bores are then mounted onto the QD hubs to complete the package. All coupling models feature a unique open arm disc pack design made of rugged composite material. This patented disc pack design provides the high misalignment capacity of elastomeric couplings but with higher torsional stiffness. The disc pack also has a higher misalignment capacity as compared to steel disc couplings and provides superior damping and isolation of shock and vibrating loads.
The composite disc material eliminates fretting corrosion, a common problem with steel disc couplings, which can result in disc pack stress fractures at the bolt hole locations. Another important feature -- CD® Couplings have high chemical and moisture resistance in hostile environments, conditions which are too difficult or impossible for steel disc and elastomeric couplings. Single and Double Flex CD couplings with QD bushing hubs are available for immediate shipment from Zero-Max. (The QD bushings are purchased from your local distributor).
See at www.zero-max.com Email: [email protected] Or call 1-800-533-1731 for FREE brochure or CD ROM with sizing software included. Zero-Max13200 Sixth Avenue NorthPlymouth, Minnesota 55441-5509 Fax: 763-546-8260

