Motor Magnet Assembly: Tolerance Stack-Up, Adhesive Selection, and Inspection

Engineering guide for NdFeB motor magnet assembly — magnetic force handling risks, radial tolerance stack-up analysis, pre- vs post-magnetization assembly tradeoffs, adhesive selection, and post-assem

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Axial Flux Motor Magnet Design: Sector Geometry, Magnetization Direction, and...

Engineering guide for NdFeB sector magnets in axial flux motors — sector geometry constraints, axial vs. Halbach magnetization, TORUS/YASA dual-rotor remanence tolerance, and grade selection by operat

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NdFeB Magnets for Medical Device Motors: Purity, Outgassing, and Sterilizatio...

What medical device engineers need to specify for NdFeB motor magnets — contamination control, coating selection for autoclave/EtO/gamma sterilization, MRI exclusion zones, and regulatory documentatio

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Demagnetization in Permanent Magnet Motors: Causes, Risk Factors, and How to ...

The three demagnetization mechanisms in NdFeB motors — thermal, short-circuit, and operating-point — how to calculate margin from the B-H curve, and what to specify by grade suffix and application.

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Cogging Torque in Permanent Magnet Motors: Causes, Measurement, and Magnet De...

What causes cogging torque in PM motors, how to measure it, and which magnet design approaches — arc ratio, step skewing, edge chamfering — actually reduce it and by how much.

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Magnetization Direction in Motor Magnets: Radial, Parallel and Halbach Arrays

How to choose between radial, parallel, and Halbach array magnetization for motor arc segment magnets. Covers air gap flux waveform, torque ripple tradeoffs, and selection by application.

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NdFeB Magnets for Industrial Servo Motors: Matching Grade to Duty Cycle

How to select NdFeB grades for industrial servo motors — matching grade suffix to thermal class, duty cycle dynamics, and long-cycle demagnetization risk. Covers CNC, robotics, semiconductor assembly,

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Magnet Selection for UAV Propulsion Motors: Where High KV Meets Thermal Reality

The UAV Motor Problem Is Not What You Think Most engineers specifying magnets for UAV propulsion motors focus on energy product. Higher BHmax means more flux density, which means higher KV and more th

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