Magnetic Bearings

Passive and active magnetic levitation for frictionless rotation.

Target Buyer:Turbomachinery engineers.

Best-Fit Application Use

Best fit for rotating machinery teams that need passive magnetic elements with controlled field symmetry, runout, and stiffness assumptions.

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Solution Highlights

Zero friction
No lubrication needed
Low wear in sealed or vacuum systems

Common Use Cases

High-speed compressors
Flywheels
Turbomachinery support rings

Implementation Focus

Stiffness calibration
Damping control
Runout and concentricity management
Fail-safe mechanical clearance planning

Buyer Decision Criteria

Rotor mass, bearing geometry, stiffness target, speed, and safety margin.
Ring concentricity, angular tolerance, and field symmetry.
Vacuum, temperature, or corrosion requirements.
Acceptance method for field, balance, and mechanical runout.

Factory Support Scope

Segmented Halbach ring production with controlled angular placement.
Non-magnetic carriers and sleeves for rotating assemblies.
Field mapping support for bearing stiffness modeling.
Material and coating selection for vacuum or high-speed programs.

Application Evaluation Matrix

Evaluation Metric	Typical Range	Buyer Relevance
Bearing Stiffness	Custom	Determines stability.
Runout / Concentricity	Set by rotating system tolerance stack	Mechanical eccentricity can be misread as magnetic stiffness or damping instability.
Operating Speed	Project-specific by rotor mass and retention method	Speed drives balance grade, sleeve selection, and safety margin for rotating magnets.

RFQ Preparation Checklist

Rotor weight and operating RPM
Bearing ID/OD, axial length, and target stiffness
Vacuum, temperature, and corrosion environment
Runout, balance, and field mapping acceptance method

Risk and Mitigation

Vibration resonance: Precise field mapping and balancing.
Unstable bearing model due to missing boundary conditions: Define rotor mass, gap, stiffness target, damping assumptions, and backup bearing clearance.
Vacuum or corrosion compatibility failure: Select coating, adhesive, and material package for the actual operating environment.

Validation Deliverables

Ring dimension, runout, and concentricity report when specified.
Magnetic field profile and orientation confirmation.
Grade and coating documentation.
Assembly process notes for approved samples.

RFQ to Delivery Flow

Send rotor mass, bearing dimensions, target stiffness, speed, and environment.
We review ring geometry, material, and retention risk.
Prototype rings validate field symmetry and mechanical fit.
Production uses matched fixtures and inspection criteria from the sample.

Recommended Products

Halbach levitation array for bearing systems

Neodymium Halbach ring for bearing assemblies

Buyer FAQ

Active or passive?

We supply permanent magnet arrays for both.

Which product family is usually used?

Halbach rings are common for annular bearing fields, while rotor assemblies may be reviewed when the magnetic bearing is integrated into a high-speed shaft.

Can you provide field data for bearing models?

Yes. Field profile data can be scoped for the defined gap, ring geometry, and acceptance zone.

Related Resources

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