Magnetic couplings offer a non-contact transfer of torque. They are typically used in pumps for seal-less applications; keeping corrosive, toxic, or flammable liquids from escaping into the atmosphere.
Simple Concept: Opposite Poles Attract.
This attraction is how we transmit torque from one magnetic hub to another. By driving one magnetic hub, torque is transmitted magnetically to the other magnetic hub. This can be done through the air or through a non-magnetic containment barrier such as stainless steel or fiberglass, allowing complete isolation of the inner magnetic hub from the outer magnetic hub. There are no contacting parts.
How Disc Couplings Work
Disc type couplings consist of two opposing discs with powerful rare earth magnets. The torque applied to one disc is transferred through an air gap to the other disc. Because of its simple flat design, you can have angular misalignment of up to 3º or parallel misalignment up to ¼” and still transmit nearly full rotational torque. You could also fabricate an inexpensive flat barrier to separate the atmospheres or fluids surrounding the two discs. This is our simplest and most versatile coupling.
Advantages of Disc Type Couplings
- No Wearing Parts
- Synchronous Design, No Slip at Any Speed
- No Physical Contact Between Driving and Driven Parts
- Simplifies Containment Barrier
- Custom Designs Available
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Note: Stock sizes (MTD-0.2 through MTD-5) are kept on the shelf. Larger units are made to order. Please call the factory for bore codes and availability of larger units.
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