Why Eccentricity Is the “Hidden Killer” of Magnetic Encoder AccuracyIn industrial servo systems, robot joints, and precision motion control, magnetic encoders have become a mainstream angle-feedback solution because of their compact structure and strong contamination resistance. However, one easily

I. Why Must High-Speed Motors Undergo Stress Verification?For a high-speed motor with a rotational speed of 30,000 r/min, the centrifugal acceleration at the outer diameter of the rotor can reach tens of thousands of times the gravitational acceleration. Under such extreme operating conditions, the

In scenarios such as robot joints, collaborative robotic arms, and direct-drive rotary tables, frameless torque motors are becoming increasingly common. They have no housing and no bearings; in essence, they are a "bare rotor + stator" power core embedded directly into the mechanical structure, achi

A resolver is one of the most commonly used high-precision angular position sensors in motor control systems, playing a key role especially in drive motors for new energy vehicles, industrial servo systems, and aerospace. Its operating principle is based on electromagnetic induction—the stator windi

Axial flux motors are becoming the “new power darling” in fields such as new energy vehicles, humanoid robots, and low-altitude aircraft—at the same power, they are 50% lighter and 50% smaller in axial dimension. But manufacturing this flat disc-type motor is far from as simple as “flattening a cyli

A motor with a speed of 30,000 revolutions per minute can, with even just a few milligrams of rotor mass eccentricity, generate centrifugal force sufficient to destroy its bearings within a few hours. This is no exaggeration—when speed increases by an order of magnitude, the vibration energy excited

In motor control, new energy vehicle electric drives, servo system selection, or testing, engineers most frequently ask: "What is the accuracy of this resolver?" However, datasheets often list parameters like "Electrical error ≤ ±10′", "Angle accuracy ±15′", "Resolution 16 bits", etc., which can eas

In many motors, sensors, and magnetic transmission devices, we often encounter a key component—the magnetic ring (or magnet ring). It may look like a simple circular ring, but different magnetization directions can lead to completely different performance and application scenarios.The two most commo

In recent years, axial flux motors have gained increasing traction in the electric drive community. They are regarded by many as one of the representative directions for next-generation high-performance motors, especially in applications where volume and weight are critical—such as in-wheel motors,

In high-performance motion control scenarios such as robot joints, collaborative robotic arms, and direct-drive rotary tables, frameless torque motors are becoming increasingly common. They have no housing, no bearings—essentially a "bare rotor + stator" power core that is embedded directly into the