MOTION SYSTEM TRENDS
Custom solutions
lead coupling trends in 2019
W
ith application environments increasing in complexity year over year, standard couplings are often solving only part of the problem. Coupling industry leaders are reporting an increase in customer requests for custom solutions; Engineers want their coupling performance fine-tuned for precisely the task at hand. INCREASED MISALIGNMENT CAPACITY When connected motion components in a composite fiber processing system needed extra parallel misalignment capacity to prevent premature bearing failure and oil leakage, Zero-Max created a custom, shortened Double Flex CD Coupling. In this application, the original machine design called for a single flex, steel disc coupling to connect the system motor to a gearbox. When operating, the steel disc coupling did not allow enough parallel misalignment to protect the connected components from excess stress and wear. Component failure resulted, causing system downtime with excess cost and time for restart of the equipment. Zero-Max engineers proposed a shortened version of its Model 6P60C CD coupling. Designed with a composite disc center member, this coupling handles the misalignment, minimizing reaction loads in a confined operating space much better than the previously used steel disc coupling.
With a peak torque value of 12,700 in-lbs, the CD Coupling is torsionally stiff and able to operate at speeds up to 4,400 rpm. The custom CD Coupling ensures low reaction loads on the system’s shaft bearings.
With a peak torque value of 12,700 in-lbs, the CD Coupling is torsionally stiff and able to operate at speeds up to 4,400 rpm, far above the system’s upper-performance requirements. The custom CD Coupling ensures low reaction loads on the system’s shaft bearings. This custom CD Coupling has up to 3° angular misalignment with 0.069 (1.8mm) parallel and 0.260 (6.6mm) axial misalignment also allowed. The coupling has aluminum hubs with little inertia. The coupling was installed by removing the failed coupling and connecting the newly modified CD Coupling’s clamp- style hubs in the system’s powertrain, This Ameridrives custom 11-in. without having to redesign or relocate any machine diameter gear coupling has a components. peak torque rating of 397,225 The engineering disciplines Zero-Max applies to in.lbs. (44,880 Nm). its custom coupling applications include metallurgy and alloy material design, composite disc formation,
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DESIGN WORLD — MOTION
11 Couplings — Motion Control Trends 03.19-V3.indd 80
3 • 2019
motioncontroltips.com | designworldonline.com
3/12/19 12:54 PM
