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TechTalk Blog

Theory of Operation of a Magnetic Torque Coupler

Magnet Skew

In the simplest form, magnets are able to exert a force over a distance. Whether by inducing a field in a ferromagnetic material or interacting with another magnet, a magnet can exert a force without touching. The magnet’s magnetic field is the mechanism for this non-contact force…

Implementation Considerations for Synchronous Magnetic Torque Couplers (Geometric Misalignment)

When selecting a style of Synchronous Magnetic Torque Coupler, one must consider the type and how the coupler will be integrated to ensure a trouble free performance. The style of coupler, Face-to-Face or Coaxial, will generally be dictated by the requirements of the application, but the ability to ensure correct radial, axial, or angular alignment will also need to be considered…

A Guide to Magnetic Linear Couplers

Magnetic Linear Coupler

In this third Tech Talk article in a five-part series about Magnetic Torque and Magnetic Linear Couplers, we take a closer look at Magnetic Linear Couplers. Similar to a Magnetic Torque Coupler, a Magnetic Linear Coupler relies on the magnetic interaction between two coupler halves. As in the Torque Coupler, usually one half is the driver, and the other half is the follower. Linear Couplers are often simpler to design and to construct when compared to Torque Couplers because the movement is linear and non-rotational.

A Linear Coupler can be as simple as two magnets or more complex as to be comprised of engineered arrays containing multiple magnets of various configurations. The operational gap between the coupler’s halves, the required coupling force, and the operating environment are the prime design variables.

Do Magnets Have a Shelf Life?

We are asked many times about the shelf life of permanent magnets. The simple answer is, no, there is no shelf life; however, as all things go with magnets, it is not that simple…

Magnet Myths: Magnets are Commodities?

30 to 40 years ago, there were many small to medium sized magnet producers who competed to expand the performance of the magnet products they offered. They eagerly sought to raise energies, increase the heat tolerance, and increase the resistance to corrosion for commercially produced magnets. They also invested resources in developing new alloys to bring to market, and there was competition to increase performance…

Types of Magnetic Torque Couplers – Face-to-Face & Coaxial

In this second post of a series exploring magnetic couplers, we examine two different types of the commonly used “synchronous” style of magnetic torque coupler, which is a style of coupler in which the coupler’s output shaft speed equals the input shaft speed. The two primary versions of the synchronous style torque couplers that we will be discussing are the “Face-to-Face” type and the “Coaxial” type.

Did You Know?

Alnico has the highest operating temperature of all magnet materials (up to 930°F/500°C.)

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