Product category:
Gears, brakes, couplings and engines
News Release from: Zero-Max | Subject: QD hub
Edited by the Engineeringtalk Editorial
Team on 12 February 2002
More flexibility for couplings
Zero-Max reckons its CD couplings are more versatile than ever using the new QD hub and bushing model.
Zero-Max reckons its CD couplings are more versatile than ever using the new QD hub and bushing model One size CD coupling can accommodate a large range of QD bushing bore sizes, making ordering, delivery and installation fast and easy
This article was originally published on Engineeringtalk on 23 Feb 2004 at 8.00am (UK)
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Devices are available as single-flex models, which provide up to 3-degree angular misalignment, 0.025in parallel and 0.160in axial, as well as double-flex models providing up to 3-degree angular misalignment, 0.089in parallel and 0.32in 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.
CD couplings also have high chemical and moisture resistance in hostile environments, conditions which are too difficult or impossible for steel disc and elastomeric couplings. Request a free brochure from Zero-Max ...
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