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12mm Planetary Gearbox & Reducer

This 12mm planetary gearbox is precision-machined for compact coaxial transmissions, offering multiple stage options with defined lengths and efficiency levels for stable speed reduction in tight assemblies.

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  • 12mm Planetary Gearbox & Reducer Featured Image
Specs

Key Features

This planetary gearbox combines a coaxial layout with stage-based sizing, making it easier to balance ratio, length, and efficiency while keeping the shaft interface flexible.

  • Precision machining gearbox structure for consistent fit and alignment
  • Coaxial planetary layout for stable output alignment in compact systems
  • Stage-based lengths for easier packaging control across ratio selections
  • Efficiency values provided by stage class to support practical selection
  • Customizable output shaft interface for couplers, hubs, and direct-drive needs
technical Specs

Motors Specifications

Index Gear Ratio Actual Ratio Stage Length (mm) Efficiency (%) Motor Gear Teeth Motor Gear ID (mm) Rated Torque (g·cm) Allowable Peak Torque (g·cm)
1 4 4 1 14.3 80 12 Φ1.0 / Φ1.5 800 2400
2 5 5 9 Φ1.0
3 16 16 2 17.35 75 12 Φ1.0 / Φ1.5 1200 3500
4 20 20 12 Φ1.0 / Φ1.5
5 25 25 9 Φ1.0
6 64 64 3 20.4 65 12 Φ1.0 / Φ1.5 1600 4500
7 80 80 12 Φ1.0 / Φ1.5
8 100 100 12 Φ1.0 / Φ1.5
9 125 125 9 Φ1.0
10 256 256 4 23.45 55 12 Φ1.0 / Φ1.5 1800 5400
11 320 320 12 Φ1.0 / Φ1.5
12 400 400 12 Φ1.0 / Φ1.5
13 500 500 12 Φ1.0 / Φ1.5
14 625 625 9 Φ1.0

For additional customization or reference configurations, please feel free to contact us.

Why Choose us

SLW Motor Highlights

  • Stage-length mapping simplifies packaging

    Each stage class is tied to a fixed length, so you can choose the ratio while controlling overall assembly length.

  • Efficiency guidance by stage class

    Efficiency values are provided by stage count, helping you balance reduction needs with practical output behavior.

  • Torque levels scale with stage selection

    Rated and peak torque values increase by stage class, supporting selection for moderate loads through higher torque margin requirements.

  • Motor gear interface options

    Motor gear teeth and motor gear inner diameter options vary by configuration, allowing better matching to different motor coupling setups.

Custom

Beyond the Standard: Performance Customized

  • 01
    Wiring & Lead Routing
    Lead paths can be arranged around the gearbox installation to avoid conflicts with mounting space and coupler clearance.
  • 02
    Customized Shaft Interface
    Shaft end geometry can be tailored to your coupling method, improving assembly repeatability and slip resistance.
  • 03
    Installation Orientation
    Provide mounting and load directions to ensure stable operation under actual side and axial loads.
  • 04
    Control System Matching
    For start/stop, reversing, or holding applications, control settings can be tuned to minimize peak torque duration and maintain repeatability.
  • 05
    Application-Specific Tuning
    Share load type, duty cycle, and target output speed to optimize stage count and gear ratio for your real operating conditions.
  • Wiring & Lead Routing
  • Customized Shaft Interface
  • Installation Orientation
  • Control System Matching
  • Application-Specific Tuning

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FAQ

Frequently Asked Questions

Higher stage count is typically selected to increase reduction ratio while extending gearbox length and reducing overall efficiency.

How do I select the right stage count for my application?
Choose the target gear ratio first, then confirm the corresponding stage length and the torque level that matches your load requirement.
Why does efficiency decrease as stage count increases?
More stages generally introduce more internal gear mesh losses, so higher reductions typically trade some efficiency for ratio range.
What does “motor gear ID” mean in the table?
It refers to the inner diameter specification of the motor gear interface listed for each configuration option.
Can I use the same gearbox size while changing ratios?
Yes. This series keeps the 12mm diameter class while offering multiple ratios through stage selection and gear set choices.
What details are needed for a custom output shaft?
Provide your coupling method, target shaft geometry, and any constraints related to slip control, positioning, or assembly clearance.
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Tell us your project or application requirements, and our team will get back to you with technical support, product recommendations, or a customized motor solution.

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