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Metal Gear Micro Planetary Drives

Durable micro planetary drives using powder metallurgy, machined steel, brass, or mixed metal gear stages when shock load, temperature, stall survival, humidity, or material compliance matters more than the lowest acoustic noise.

Target Buyer:For engineers operating in harsh environments where plastic stages may be unsuitable and where material choice must be tied to temperature, shock, grease, corrosion, noise, and validation evidence.

OEM pricing, sample terms, freight, and lead time are confirmed by RFQ after drawings, quantity, destination, and validation scope are reviewed.

Metal gear micro planetary drive with compact gearbox for shock-load applications

Commercial Availability

RFQ Terms for Metal Gear Micro Planetary Drives

Unit pricing, sample terms, freight, and lead time are confirmed by RFQ after drawings, quantity, destination, annual volume, and validation scope are reviewed.

Product code

Current Page Value
MPM-METAL-GEAR-MICRO-PLANETARY-DRIVES
Buyer Use
Page-level product family identifier used to keep RFQ, drawing, sample, and quote communication aligned.

Commercial path

Current Page Value
RFQ-based OEM quotation
Buyer Use
No public checkout price is shown because winding, ratio, gear material, shaft, validation evidence, freight, and volume change the final unit cost.

Offer status

Current Page Value
Platform-dependent availability
Buyer Use
Standard micro planetary motor platforms are reviewed for custom sampling and production fit before quote confirmation.

Condition

Current Page Value
New OEM components and assemblies
Buyer Use
Samples and production lots are treated as new industrial components tied to the approved drawing revision and buyer file.

Valid from

Current Page Value
August 5, 2026
Buyer Use
This page describes the current RFQ route; written quotations state their own price validity, incoterm, and lead-time assumptions.

Region

Current Page Value
Worldwide RFQ support
Buyer Use
Destination, compliance needs, packing notes, and shipping route are confirmed during quotation instead of embedded as a fixed retail shipping rate.

Quote currency

Current Page Value
USD
Buyer Use
Export quotations are usually discussed in USD unless a buyer requests another quotation currency.

Capability Highlights

  • All-metal construction options
  • High temperature resistance
  • Impact tolerant

Typical Applications

  • Outdoor Actuators
  • Industrial Dispensers
  • Precision Industrial Actuation

Engineering Focus

  • Lubrication retention
  • Thermal expansion matching
  • Powder metallurgy mold design

OEM Buyer Decision Path

Qualify the Product Across Engineering, Procurement, and QA

Product selection usually fails when only one team reviews the motor. Use this path to connect mechanical fit, quote scope, validation evidence, and production handoff before sample approval.

Design Engineering

Decision Check
Envelope, output speed, continuous torque, stall condition, backlash/noise limit, shaft datum, and cable route.
Page Evidence
Performance window, engineering focus, customization map, CAD/STEP request path, and material review.

Procurement

Decision Check
Prototype quantity, annual volume, destination, sample timing, quote scope, and approved supplier workflow.
Page Evidence
RFQ checklist, email template, WhatsApp handoff, and quote caveat before sample pricing.
Next Step
Send RFQ

Quality

Decision Check
Incoming CTQ, drawing revision, torque-speed test condition, noise/backlash method, and lot traceability expectation.
Page Evidence
Risk controls, validation scope, buyer file package, and quality evidence review path.

OEM Program

Decision Check
NPI stage, frozen BOM fields, custom tooling boundary, packing rules, revision control, and production handoff.
Page Evidence
OEM customization options, supplier workflow, export coordination, and related application routing.
Next Step
OEM Workflow

Key Evaluation Matrix

Operating Temperature

Typical Range
-30°C to +120°C
Why It Matters
Metal gears can tolerate temperature and load conditions that may deform plastics.

Gear Train Construction

Typical Range
Powder metallurgy, machined steel, brass by stage
Why It Matters
Lets the design balance shock resistance, cost, corrosion behavior, and acoustic trade-offs.

Shock Load Tolerance

Typical Range
Validated against buyer load profile
Why It Matters
Metal gears need test conditions that reflect real jams, impacts, and duty cycles.

Ratio & Performance Window

Reference Performance Table by Frame and Ratio

These RFQ reference windows translate the planning ranges into an engineering shortlist. Final datasheet values are confirmed by winding, ratio, gear material, load, duty cycle, current limit, and test condition before sample approval.

10/12mm metal gear build

Rated Voltage
3-12V DC
Ratio Range
5:1-1000:1
No-load RPM
Motor winding dependent; noise trade-off reviewed
Rated-load RPM
Confirmed at load and acoustic acceptance limit
Continuous Output Torque
100 g.cm-1.5 kg.cm reference window
Stall Torque
Metal stages improve shock margin; verify shaft limit
Efficiency
Metal mesh, grease, and stage count dependent
Application Fit
Locks, dispensers, compact outdoor actuators

16/22mm MIM metal gear build

Rated Voltage
6-24V DC or BLDC
Ratio Range
4:1-1500:1
No-load RPM
Motor platform dependent; thermal path reviewed
Rated-load RPM
Validated at continuous load and duty cycle
Continuous Output Torque
0.5-5.5 Nm reference window
Stall Torque
Review jam event, tooth strength, and carrier plate
Efficiency
MIM material, grease, and stage count dependent
Application Fit
Valves, industrial modules, automotive parts

36/42mm alloy/MIM drive

Rated Voltage
12-48V DC or BLDC
Ratio Range
3:1-512:1
No-load RPM
Selected from heavy axis speed target
Rated-load RPM
Validated at full load and temperature range
Continuous Output Torque
9.3-35 Nm reference window
Stall Torque
Requires reinforced output and current protection
Efficiency
Lower ratios and proper grease preserve margin
Application Fit
AGV, mower, industrial actuators

Sample Acceptance Plan

Turn Product Selection Into Pass/Fail Checks

Before a motor family becomes a sample order, sales engineering converts the RFQ into acceptance checks for engineering, procurement, and quality. These checks keep CAD/STEP release, prototype approval, and repeat production tied to the same specification baseline.

Material stack

Buyer Question
Which metal gear material fits shock, temperature, corrosion, cost, and noise trade-offs?
Evidence to Prepare
Load profile, temperature range, humidity, corrosion concern, material declaration need, and cost target.
Pass Signal
Powder metallurgy, machined steel, brass, or hybrid stages are documented by stage and purpose.

Shock and reversing duty

Buyer Question
Will metal stages handle jams or reversing loads without carrier or tooth damage?
Evidence to Prepare
Stall torque, jam frequency, reversal frequency, shaft load, controller current limit, and end-stop behavior.
Pass Signal
Gear train and carrier design pass the buyer shock or reversing acceptance test.

Lubrication and environment

Buyer Question
Will grease and coatings remain stable under the operating environment?
Evidence to Prepare
Ambient temperature, humidity, IP target, grease restriction, duty cycle, and storage condition.
Pass Signal
Noise, wear, corrosion, and current draw remain stable after environmental cycling.

Noise and backlash trade-off

Buyer Question
Can durability be increased without exceeding the product noise or positioning target?
Evidence to Prepare
Noise limit, backlash limit, load profile, housing condition, and allowed material compromises.
Pass Signal
The approved sample balances metal-gear durability with documented acoustic and backlash limits.

Selection-Ready Product Data

Build the Ratio Table Before Sample Approval

Public diameter pages are only the starting point. For RFQ review, sales engineering confirms rated voltage, no-load RPM, rated-load RPM, continuous output torque, stall torque, current, efficiency, and gear ratio against your mechanism before releasing drawings or sample pricing.

Rated voltage and current limit

Buyer Input
3V, 6V, 12V, 24V, or buyer-defined driver limit
How It Shapes the Quote
Selects the winding, thermal margin, stall-current boundary, and battery or adapter fit.

No-load speed and loaded output speed

Buyer Input
Motor RPM, target output RPM, and acceptable speed tolerance
How It Shapes the Quote
Narrows the gear ratio and keeps the prototype inside the required actuation time.

Continuous output torque and stall torque

Buyer Input
Working torque, peak load, jam condition, and stall duration
How It Shapes the Quote
Checks gear material, shaft support, carrier strength, and safety margin before sampling.

Gear ratio and efficiency target

Buyer Input
Known ratio, output RPM target, or torque-speed curve from the mechanism
How It Shapes the Quote
Builds the ratio table used to compare speed, torque, current, efficiency, and heat rise.

Duty cycle and life target

Buyer Input
On/off sequence, cycles per day, lifetime cycles, ambient temperature
How It Shapes the Quote
Defines grease, gear stack, winding temperature, brush life, and sample validation scope.

Noise and backlash limit

Buyer Input
dB limit, measurement distance, arcmin or degree target, load fixture
How It Shapes the Quote
Separates POM, hybrid, metal, and low-backlash options before the CAD exchange.

Customization Options

Match the Motor to the Mechanical Boundary

The useful custom scope is normally around the shaft, gearbox stack, feedback, cable exit, connector, and buyer file package. These options should be fixed before tooling, CAD exchange, or pilot builds.

Output shaft and mounting

Common Options
D-cut, flat, threaded, cross-drilled, keyway, custom length, flange, bearing support.
RFQ Signal
Attach shaft datum, mating part drawing, radial/axial load direction, and installation sequence.

Gear material and backlash

Common Options
POM, MIM, machined metal, hybrid stages, grease selection, low-backlash build review.
RFQ Signal
State torque peaks, reversing frequency, noise target, temperature, and life requirement.

Feedback and control

Common Options
Encoder, Hall signal, EMI suppression, pinout, driver match, current-limit review.
RFQ Signal
Share CPR, signal voltage, controller type, cable route, connector drawing, and EOL test needs.

Cable, connector, and assembly

Common Options
Lead wire length, connector model, cable exit, strain relief, bracket, harness, module assembly.
RFQ Signal
Include enclosure envelope, bend radius, pull-force concern, label rules, and packing notes.

Compliance and buyer file

Common Options
RoHS/REACH file, material note, drawing revision, sample test report, lot traceability.
RFQ Signal
Confirm destination, regulated-market expectations, incoming inspection plan, and annual volume.

Evidence Pack Before Sampling

Evidence Pack to Request Before Sampling

These files are normally reviewed by request rather than downloaded instantly. Confirm the scope early so drawings, sample data, quality records, and production notes match the same motor revision.

CAD / STEP baseline

What to Request
Outer diameter, length, shaft geometry, flange datum, connector clearance, and mating-part constraints.
Why It Matters
Prevents a mechanically suitable motor from failing because of envelope, shaft, or mounting mismatch.

Torque-speed-current window

What to Request
Rated voltage, no-load speed, rated-load speed, continuous torque, stall torque, current limit, and duty cycle.
Why It Matters
Separates reference catalog windows from the sample value set that purchasing and engineering can approve.

Inspection and test evidence

What to Request
Dimensional CTQ, gear ratio check, no-load current, load test, noise/backlash method, and final inspection record.
Why It Matters
Lets the buyer define what must be proven before incoming inspection, pilot build, or supplier approval.

Gear material and backlash route

What to Request
POM, hybrid, or metal stage choice, grease condition, reversing motion, temperature, shock load, and noise target.
Why It Matters
Aligns durability, acoustic behavior, backlash, cost, and life expectation before the sample BOM is frozen.

OEM handoff package

What to Request
Drawing revision, cable/connector rules, label and packing notes, destination, compliance file needs, and annual volume.
Why It Matters
Turns a selected sample into a production-ready supplier package with fewer revision loops.

Gear Material Review

Confirm POM, Hybrid, or Metal Stages Before Prototype Approval

Use the material guide to align noise, torque density, stall load, wear, grease, and backlash expectations before the sample BOM is frozen.

Compare POM vs MIM gears

CAD / STEP Request

Request Outline Drawings Before You Freeze the Mechanical Design

Share the mating envelope and target duty data so sales engineering can confirm whether an existing outline drawing, STEP/IGES file, or custom shaft and flange proposal is suitable for your project.

1

Installation envelope, mounting pattern, shaft interface, and cable exit.

2

Voltage, loaded speed, torque, gear ratio, duty cycle, noise, and backlash limits.

3

Preferred CAD format, drawing revision, prototype quantity, destination, and compliance notes.

Fields engineering checks before sharing a model

Product fit
Diameter, gearbox length, motor family, shaft style, flange pattern, and cable or connector exit.
Performance target
Voltage, loaded speed, continuous torque, peak or stall torque, ratio, duty cycle, life, noise, and backlash.
Mechanical interface
Mating drawing revision, installation clearance, radial or axial load, tolerance priority, and assembly sequence.
Release package
2D outline, STEP/IGES envelope, custom shaft/flange review, datasheet values, and quality evidence scope.

CAD files are shared by project fit and revision status. For custom shafts, flanges, cable routing, or gearbox interfaces, attach the mating drawing so the first CAD exchange uses the correct mechanical boundary.

RFQ Checklist

  1. Operating environment (temp/humidity)
  2. IP rating requirement
  3. Continuous load profile
  4. Shock, vibration, or stall event conditions
  5. Noise target and enclosure condition
  6. Required material declaration or compliance files

Risk Controls

  • Lubricant breakdown: We apply synthetic extreme-pressure (EP) greases rated for full metal-on-metal contact.
  • Higher acoustic noise than plastic gears: We use gear profile control, grease selection, and hybrid options when durability and noise both matter.
  • Corrosion or material mismatch: Material, coating, grease, and packaging are reviewed against humidity, temperature, and compliance needs.
  • All-metal construction is specified when a hybrid stack would perform better: We compare noise, temperature, shock, duty cycle, frame size, and cost before deciding which stages must be metal.

Product Gallery

Miniature metal planetary gearbox sample for durability and ratio selection
Miniature metal planetary gearbox sample for durability and ratio selection
High-torque metal gear planetary motor candidate for industrial actuators
High-torque metal gear planetary motor candidate for industrial actuators
BLDC planetary drive with metal gear option for long-life OEM equipment
BLDC planetary drive with metal gear option for long-life OEM equipment
Metal gearhead assembly for micro planetary motor material selection review
Metal gearhead assembly for micro planetary motor material selection review
Compact metal planetary gearbox for higher temperature and stall margin
Compact metal planetary gearbox for higher temperature and stall margin

Buyer FAQ

Is it louder than plastic gears?

Yes, full metal gears usually generate more acoustic noise, which is a trade-off for higher durability under shock or temperature loads.

Which metal gear material is best?

It depends on frame size, load, ratio, cost, and environment. Powder metallurgy, machined steel, and brass can be mixed by stage.

Can metal gears be used in compact industrial equipment?

Yes. Send the duty cycle, load peaks, temperature range, and noise limit so the material stack can be selected correctly.

When should we avoid all-metal gears?

If low acoustic noise, low weight, or light intermittent load is more important than shock and temperature resistance, a hybrid gear stack may be better.

Related Resources

Product Qualification Review

Ready for a Product-Specific OEM Review?

Send the target size, voltage, torque, speed, ratio, quantity, drawing status, and validation concerns. Sales engineering can then confirm whether this product family is the right starting point or whether another frame, gear material, or OEM assembly route is safer.

WhatsApp: WhatsApp Engineering Support. Email: [email protected].

Inquiry Email

[email protected]

Include OD/length, voltage, torque, loaded speed, ratio, drawings, quantity, and destination.

Instant Chat

WhatsApp Engineering Support

Fast channel for clarifying specs, drawings, and sample timing.