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12mm Spur Gearbox & Reducer

This 12mm spur gearbox is designed for compact drive systems that need a wider ratio span and higher torque margin, with a customizable output shaft to simplify integration across different mechanisms.

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  • 12mm Spur Gearbox & Reducer Featured Image
Specs

Key Features

This spur gearbox uses a gear-hobbing structure to support broad reduction choices while keeping a clean, compact mounting package.

  • Gear ratio coverage from 3 to 1000 for wide speed-to-torque matching
  • Multiple stage configurations to support both low and ultra-high reductions
  • Output direction options (same or reverse) to match layout constraints
  • Rated/peak torque levels provided by ratio class to guide selection safety
  • Customizable output shaft interface to reduce adapters and assembly steps
technical Specs

Motors Specifications

Index Gear Ratio Actual Ratio Stages Overall Size Output Direction Motor Gear Teeth Motor Gear ID (mm) Rated Torque (g·cm) Allowable Peak Torque (g·cm)
1 3 3.121 2 12*10*9 Same 18 1 200 600
2 5 5.067 2 12*10*9 Same 13 1 200 600
3 10 9.677 2 12*10*9 Same 13 1 200 600
4 17 17.508 3 12*10*9 Reverse 12 1 300 900
5 20 20.584 3 12*10*9 Reverse 12 1 300 900
6 20 20.72 4 12*10*9 Same 16 1.0/1.5 300 900
7 30 29.977 3 12*10*9 Reverse 12 1 300 900
8 30 31.095 4 12*10*9 Same 18 1 300 900
9 34 34.105 3 12*10*6.1 Reverse 12 1 300 900
10 50 50.092 4 12*10*9 Same 15 1 400 1200
11 52 51.446 4 12*10*9 Same 15 1 400 1200
12 67 67.738 4 12*10*9 Same 13 1 400 1200
13 75 75.813 4 12*10*9 Same 13 1 400 1200
14 96 96.326 4 12*10*9 Same 13 1 400 1200
15 100 99.002 4 12*10*9 Same 13 1 400 1200
16 110 109.837 5 12*10*9 Reverse 12 1 400 1200
17 150 149.296 5 12*10*9 Reverse 12 1 500 1500
18 170 169.434 5 12*10*9 Reverse 12 1 500 1500
19 210 211.305 5 12*10*9 Reverse 12 1 800 2400
20 244 244.244 5 12*10*9 Reverse 12 1 800 2400
21 250 253.396 5 12*10*9 Reverse 12 1 800 2400
22 278 278.524 5 12*10*9 Reverse 12 1 800 2400
23 298 298.397 5 12*10*9 Reverse 12 1 800 2400
24 302 302.397 5 12*10*9 Reverse 12 1 800 2400
25 380 378.874 5 12*10*9 Reverse 12 1 800 2400
26 627 627.223 7 12*10*12.5 Reverse 12 1 1000 3000
27 1000 984.55 7 12*10*12.5 Reverse 12 1 1000 3000

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

Why Choose us

SLW Motor Highlights

  • Wide ratio span for one footprint

    From 3:1 to 1000:1, you can keep a stable mounting envelope while tuning output speed and torque to different mechanisms.

  • Clear split between low-ratio and high-ratio use

    Lower ratios suit faster motion and lower torque demand; higher ratios prioritize torque margin and steadier low-speed output.

  • Direction choice simplifies transmission routing

    Same or reverse output options help you avoid extra idlers when your linkage direction is constrained by space.

  • Length choice supports packaging vs stability

    L9 supports compact builds; L12.5 supports deeper reductions and higher torque classes where stability margin is more critical.

Custom

Beyond the Standard: Performance Customized

  • 01
    Lead Routing Flexibility
    Lead exit direction and routing can be customized to avoid interference with gearbox body (12×10×9/12.5) and mounting surfaces, ensuring tidy cable management in compact assemblies.
  • 02
    Tailored Shaft Interface
    Coupling style and anti-slip features can be defined to match your assembly method and load requirements, covering rated torque up to 1000 g·cm and peak torque up to 3000 g·cm.
  • 03
    Mounting Orientation Options
    Mounting direction and expected side or axial loads can be specified to maintain stable operation under your real installation conditions across 2–7 stage configurations.
  • 04
    Control System Integration
    For frequent start/stop, reversing, or holding, gearbox parameters can be matched to control behavior to minimize peak torque events and improve repeatability.
  • 05
    Application-Specific Optimization
    Share driven load characteristics and duty cycle to optimize ratio selection (3:1 to 1000:1), output direction, and shaft interface for seamless integration and reliable performance.
  • Lead Routing Flexibility
  • Tailored Shaft Interface
  • Mounting Orientation Options
  • Control System Integration
  • Application-Specific Optimization

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FAQ

Frequently Asked Questions

Higher ratios are typically selected to increase torque margin while lowering output speed.

Which ratios are best for faster output motion?
Lower ratios such as 3, 5, and 10 are typically chosen when you need higher output speed and only moderate torque.
When should I consider ratios above 200?
Higher ratios are typically used when torque margin and low-speed stability matter more than output speed.
Why do some ratios use different stage counts?
Stage count follows the reduction target. Higher reductions usually require more stages to achieve the ratio within the same footprint.
Can I choose same-direction or reverse output?
Yes. Output direction can be selected to match your mechanism layout and reduce added transmission parts.
What do you need to define a custom output shaft?
Share your coupling method, assembly method, and any slip or positioning constraints.
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