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Humanoid Joint logoNEMA Stepper Motors
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Humanoid Joint logoNEMA Stepper Motors

China-based NEMA stepper motor factory supporting OEM customization, quality control, and global delivery.

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[email protected]

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Send target torque/speed, quantity, and destination for faster RFQ response.

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+86 18857971991

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Direct technical discussion with our engineering team.

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Are Planetary Gears Backdrivable

Zero-backlash transmission units providing torque multiplication in a compact, rigid envelope.

Target Buyer:Mechanical engineers sizing joints for positional accuracy and moment load capacity.
Are Planetary Gears Backdrivable

Engineering Resources

Download exact 3D STEP models, 2D installation tolerances, and electrical wiring PDFs. Verified for standard OEM integration.

Request 3D STEPDatasheet & 2D PDF

Capability Highlights

  • Strain-wave gear technology with near-zero backlash
  • Available torque multiplication ratios up to 160:1
  • Integrated cross-roller bearing for moment loads

Typical Applications

  • Humanoid base, shoulder and waist joints
  • Industrial 6-DOF robotic arms
  • Surgical and medical robotic manipulators

Engineering Focus

  • Torsional stiffness and lost motion
  • Moment load capacity of the output bearing
  • Lubrication lifespan under high duty cycles

Architecture & Performance Analysis

Exploded view and deterministic T-N operational envelope.

SYSTEM_ARCHITECTURE_v2.1
19-bit EncoderFrameless Torque MotorFriction BrakeStrain Wave GearTorque SensorOutput FlangeEtherCAT/CAN FD Bus
* Schematic representation. Proportions not to scale.
Feedback
Power
Transmission
PERFORMANCE_MAP_T-N
Speed (RPM)Torque (N·m)Tc: 25.7Tp: 76.5Nmax: 6913Knee Point
* Graph represents nominal 48V DC bus operation.
S1 (Continuous Duty)
S3 (Intermittent Duty)

Key Evaluation Matrix

MetricTypical RangeWhy It Matters
Moment stiffnessHighly rigidPrevents deflection when carrying heavy loads at full extension.
Efficiency60-80% depending on ratioImpacts battery life and thermal generation.
BacklashZero (strain-wave) or < 1 arc-minCritical for end-effector precision and stability.

Standard Technical Specifications

Reference parameters for the base configuration.

SpecificationTypical Range / ValueUnit
Peak Torque (Tmax)238.1N·m
Continuous Torque (Tc)139.0N·m
Nominal Voltage24V DC-
Max Output Speed44RPM
System Weight3.25kg
Ingress ProtectionIP54-
Communication InterfaceEtherCAT / CANopen-
* Note: These parameters represent the standard hardware configuration. Custom windings and ratios are available for OEM programs.

RFQ Checklist

  1. Target torque/speed envelope and duty cycle
  2. Mounting envelope constraints
  3. Control update rate and sensing architecture
  4. Sample acceptance and repeatability criteria
  5. Expected lifecycle and maintenance assumptions

Risk Controls

  • Premature wear from poor lubrication: Pre-packed with specialized extreme-pressure robotics grease.
  • Input shaft misalignment: Provide strict runout tolerances and integration guides for motor mating.

Product Gallery

Are Planetary Gears Backdrivable
Are Planetary Gears Backdrivable
Are Planetary Gears Backdrivable
Are Planetary Gears Backdrivable

Buyer FAQ

What is the life expectancy?

Typically rated for 10,000+ hours at nominal torque and speed.

Can it handle shock loads?

Yes, rated for momentary shock loads up to 2.5x the maximum continuous torque.

Related Resources

  • Contact & RFQ

Engineering Download Starter Pack

Public download links for procurement and engineering teams. No account or login required.

  • RFQ template (.csv)
  • Specification template (.csv)
  • Test report template (.csv)
  • Full resource index

Inquiry Email

[email protected]

Open email app

Send target torque/speed, quantity, and destination for faster RFQ response.

WhatsApp

+86 18857971991

Open WhatsApp

Direct technical discussion with our engineering team.