Permanent Magnetic Couplings eliminate wear.
October 13, 2011 -
Consisting of opposing discs with rare earth magnets, Magnetic Couplings offer silent operation and minimize vibration. Torque through drive disc is automatically transferred to other disc through air gap. Units allow for misalignment and torque transfer through walls, eliminating need for seals and removing risk of contamination from one media to next. Angular error up to 3° and parallel offset up to 6 mm can be achieved while retaining close to 100% of torque transmission.
Original Press release
T.E.A. Machine Components, Inc.
2281 Dabney Rd.
Richmond, VA, 23230
USA
Magnetic Couplings
Following strong sales and feedback on the German market, T.E.A. Machine Components is adding permanent magnetic couplings to their product range.
Magnetic couplings consist of opposing discs that are equipped with very strong rare earth magnets.
The torque through the drive disc is automatically transferred to the other disc through the air gap.
With no actual contact the magnetic couplings are highly efficient while eliminating wear, offering silent operation and reducing vibration as well as allowing for misalignment and torque transfer through walls.
This eliminates the need for seals, removing the risk of contamination from one media to the next.
In terms of misalignment an angular error of up to 3° and a parallel offset of up to 6mm can be achieved while retaining close to 100% of torque transmission.
An additional benefit lies in the couplings' double duty as a slip/ safety clutch.
When torque limits are exceeded the magnets simply slip, protecting equipment and personnel without wear on the coupling or heat generation.
The slip torque can be fine-tuned by adjusting the hub distance.
Some applications of magnetic couplings include:
Driving a submersed pump or stirrer/ agitator from outside the tank
Driving compressors or ventilators in closed containers
Underwater torque transmission to propellers or robotic arms
Rotary indication in isolation
Replacement of traditional slip clutches and driveline simplification
Variable slip torque by adjusting coupling gap distance.
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