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Magnetic

What is a hysteresis coupling?

February 16, 2016 By Mike Santora Leave a Comment

Ringfeder-Ed-Cole-Ringfeder-DWE-5104-image

By Zak Khan Hysteresis refers to a specific magnetic phenomenon. Certain magnetic materials, called ferromagnetic materials, have a tendency to remain magnetized to some degree even after the magnetic field they are subjected to is removed. This “memory of magnetic history” is referred to as hysteresis. This also means a magnetic field in the opposite […]

Filed Under: Featured, Magnetic Tagged With: ringfeder

Can you answer these 5 essential coupling questions?

January 11, 2016 By Mike Santora Leave a Comment

Servometer-446-95797

Edited by: Mike Santora, Associate Editor You’ve already accounted for potential misalignments, looked into thermal expansion scenarios and, well, checked to see what coupling was used the last time. So what’s next? Here, we cover some higher-level questions to address when designing the coupling element of your motion system equation. 1. What role does resonant […]

Filed Under: Bellows, Magnetic, Safety, Torque Limiters

How does frequent disengagement affect mechanical couplings?

December 25, 2015 By Mike Santora Leave a Comment

R+W-MKH-miniature-coupling-image

By Zak Khan Frequent engagements and disengagements of mechanical couplings can be detrimental. This is because such operating conditions can cause wear and eventual failure of couplings. The rubbing together of their surfaces causes friction-induced wear. This abrasive operating condition means such setups have inherently limited lifespans. There are a few workarounds to this abrasive […]

Filed Under: Magnetic

Motion systems application examples: Couplings

November 24, 2015 By Mike Santora 1 Comment

Zero-Max Schmidt 3

By Mike Santora Couplings are simple yet precisely engineered devices that connect shafts to transmit torque and compensate for misalignments. But many variations of coupling designs exist to complement machine dynamics and meet specific application criteria. Couplings are either torsionally rigid or flexible. Flexible couplings compensate for misalignments, while rigid designs handle drive components already […]

Filed Under: Bellows, Flexible, Jaw, Magnetic, Rigid Tagged With: ktr, zeromax

What do you know about Magnetic Couplings?

February 17, 2015 By Michael Jermann 1 Comment

Like all other couplings, magnetic couplings are designed to transfer torque from one shaft to another. But what sets magnetic couplings apart, is that they do this without a physical mechanical connection. This makes them suitable for fluid pumping applications since the connection can be made through thin barriers, which help maintain a hermetically sealed […]

Filed Under: Magnetic Tagged With: fluid pumps, magnetic coupling

Developing magnetic couplings for propulsion and more

August 2, 2012 By Leslie Langnau Leave a Comment

Correlated Magnetics Research (CMR) has been awarded a Small Business Innovation Research (SBIR) grant from the Office of Naval Research (ONR) to design and develop high-torque magnetic gears and couplings using CMR’s PolymagnetTM technology. The two-year contract is valued at $747,995 and is a collaborative effort between the U.S. Navy, CMR and MagnaDrive, Inc., of […]

Filed Under: Magnetic

LEM Engineers Invent Unique Magnetic Coupling Technology

March 2, 2010 By CouplingTipsAdmin Leave a Comment

LEM has introduced the first of its AC current sensor families based on Perfect Loop Technology. After calibration, the new RT series achieves absolute accuracy of better than 0,65% – including position error – making them the first split-core Rogowski coils to be suitable for use in Class 1 power devices. An imperfect coil structure […]

Filed Under: Magnetic

Inch & Metric Magnetic Disk Couplings

June 24, 2009 By CouplingTipsAdmin 1 Comment

New Hyde Park, NY — A new series of magnetic disk couplings from Sterling Instrument (ISO 9001:2000+AS9100B Registered Manufacturer) features no friction or wearing parts, uses no electricity and no magnetic particles to leak. These units, identified as the S50DCM… (inch) and S50DCMM… (metric) Series are stocked in 8 different bore sizes ranging from .1875″ […]

Filed Under: Disk, Magnetic Tagged With: magnetic disk couplings, sterling instrument

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