Buyer Decision Criteria
- Input speed, output speed, target ratio, and torque requirement.
- Available radial envelope and axial length.
- Pole pair and modulator design constraints.
- Efficiency target, thermal limit, and overload behavior.
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Magnetic Gears
High-efficiency contactless speed reduction/multiplication.
Target Buyer:Mechanical engineers looking to eliminate gearbox wear and maintenance.
Best-Fit Procurement Use
Best fit for teams evaluating non-contact transmission where maintenance, lubrication, overload protection, acoustic noise, or isolation matters more than a commodity gearbox.
Capability Highlights
- No lubrication required
- Acoustically quiet
- Jamming protection
Typical Applications
- Wind turbines
- Underwater propulsion
- Space mechanisms
Engineering Focus
- Gear ratio precision
- Modulator pole piece design
- Thermal behavior under overload slip
- Rotor concentricity and air-gap control
Factory Capability
- Radial and axial Halbach rotor subassemblies for magnetic gear prototypes.
- Segmented ring bonding and modulator interface coordination.
- High-strength carrier and sleeve options for rotating assemblies.
- FEA-driven pole-count review before physical tooling.
Key Evaluation Matrix
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Transmission Efficiency | Application-specific; validated by torque and loss model | Loss assumptions affect heating, cooling, and whether a magnetic gear is preferable to a mechanical gearbox. |
| Single-Stage Ratio | Typically 2:1 to 10:1 by pole combination | The ratio sets inner rotor, outer rotor, and modulator pole counts before mechanical layout. |
| Air-Gap Tolerance | Project-specific by torque density and package size | Small air-gap changes can strongly affect transmitted torque and heating. |
RFQ Checklist
- Input/Output speed and torque
- Desired gear ratio
- Space constraints
- Radial envelope, axial length, overload behavior, and cooling assumptions
Risk Controls
- Modulator structural integrity: Use of high-strength composite materials for the stationary pole pieces.
- Unrealistic torque density in a tight envelope: Run pole-count and package feasibility review before committing to rotor tooling.
- Heat build-up during overload slip: Define overload duration, cooling path, and allowed temperature rise in the RFQ.
Validation Deliverables
- Magnetic layout and pole-count confirmation.
- Rotor runout and critical dimension inspection.
- Field profile support for customer torque modeling.
- Assembly and material trace package for prototype builds.
RFQ to Delivery Flow
- Share speed, torque, ratio, envelope, duty cycle, and preferred topology.
- We review manufacturable magnetic layout and mechanical retention needs.
- Prototype parts are delivered with field and dimension data for bench testing.
- Production readiness depends on customer validation of torque and thermal behavior.
Product Gallery
Buyer FAQ
What gear ratios are possible?
Typically between 2:1 and 10:1 in a single stage, depending on the pole combinations.
Do you supply complete magnetic gearboxes?
We primarily support the magnetic rotor and Halbach assembly scope; housings, bearings, and final gearbox integration are normally co-designed with the customer.
What makes a magnetic gear RFQ useful?
Include speed, torque, target ratio, radial and axial envelope, duty cycle, and whether overload slip is allowed.
Related Resources
Engineering RFQ Inbox
Include target torque/speed, quantity, and delivery location.
Direct Engineer Chat
WhatsApp Engineering Support
Use for drawing, specification, and RFQ clarification.