Automotive Magnetic Sensor Rotors

Precision magnet rotors for Hall, AMR, GMR, TMR, and angle-position sensing modules in automotive assemblies.

Target Buyer:Best for sensor engineers who need a rotor that is mechanically safe and magnetically repeatable under automotive validation.

Capability Highlights

Multi-pole, diametrical, radial, or custom magnetic patterns
Controlled concentricity between bore, shaft, magnet, and sensing surface
Suitable for pedal, steering, brake, pump, and actuator feedback modules

Typical Applications

Throttle pedal sensors
Steering angle modules
Brake-by-wire sensors
Pump actuators

Engineering Focus

Magnetic angle error and sensing radius control
Rotor balance and insert-to-magnet concentricity
Thermal cycling and vibration validation planning

Key Evaluation Matrix

Metric	Typical Range	Why It Matters
Magnetic angle error	Project-defined by sensor architecture and air gap	Angle error is often the release gate for throttle, steering, and position-feedback applications.
Rotor concentricity	Defined from bore/shaft datum to sensing surface	Mechanical runout becomes magnetic signal variation when the sensor reads a rotating magnet.

RFQ Checklist

2D/3D drawing, material target, magnetic pattern, and sensing datum
Operating temperature, vibration, media exposure, and lifetime requirement
Sample quantity, tooling target, annual forecast, destination, and PPAP needs
Sensor IC type, target air gap, pole count, magnetic curve, and angle-error target

Risk Controls

Brittle sintered magnet carried into a vibration-critical assembly: Review bonded magnet material and molded geometry when chipping, cracking, or adhesive failure can affect functional safety.
Magnetic pattern accepted without measurable criteria: Define flux density, pole count, angle error, sensing radius, concentricity, and inspection method before sample tooling.

Buyer FAQ

Can you support custom pole patterns for sensor rotors?

Yes. The RFQ should include pole count, magnetization direction, sensor air gap, target curve, and acceptance method so tooling and magnetization can be reviewed together.

Related Resources

Inquiry Email

[email protected]

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Include drawing, material, pole pattern, quantity, and destination.

Instant Chat

+8618857971991

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Direct response from our engineering team.

Key Evaluation Matrix

Metric	Typical Range	Why It Matters
Magnetic angle error	Project-defined by sensor architecture and air gap	Angle error is often the release gate for throttle, steering, and position-feedback applications.
Rotor concentricity	Defined from bore/shaft datum to sensing surface	Mechanical runout becomes magnetic signal variation when the sensor reads a rotating magnet.

RFQ Checklist

2D/3D drawing, material target, magnetic pattern, and sensing datum

Operating temperature, vibration, media exposure, and lifetime requirement

Sample quantity, tooling target, annual forecast, destination, and PPAP needs

Sensor IC type, target air gap, pole count, magnetic curve, and angle-error target

Risk Controls

Brittle sintered magnet carried into a vibration-critical assembly: Review bonded magnet material and molded geometry when chipping, cracking, or adhesive failure can affect functional safety.

Magnetic pattern accepted without measurable criteria: Define flux density, pole count, angle error, sensing radius, concentricity, and inspection method before sample tooling.