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.

Send RFQ Request FEA Review

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

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.

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

Magnetic gear isometric engineering illustration

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

[email protected]

Email RFQ Desk

Include target torque/speed, quantity, and delivery location.

Direct Engineer Chat

+8618857971991

Chat on WhatsApp

Use for drawing, specification, and RFQ clarification.

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.

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.

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.