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18mm Worm Gearbox & Reducer

This 18mm worm gearbox is designed for compact drive systems that need high reduction ratios and stable low-speed output, with a customizable output shaft to support different coupling and mounting needs.

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  • 18mm Worm Gearbox & Reducer Featured Image
Specs

Key Features

This worm gearbox uses a compact worm-drive structure to achieve higher reductions within a small package while keeping integration flexible.

  • Gear ratio range from 42 to 2025 for high-reduction speed control needs
  • Multiple configuration options across the ratio range to support different output demands
  • Output direction options provided by ratio class to match mechanism routing
  • Optional single or dual output shaft configurations depending on the ratio set
  • Customizable output shaft interface to reduce adapters and simplify assembly
technical Specs

Motors Specifications

Index Gear Ratio Actual Ratio Stages Overall Size Output Direction Worm Starts Worm ID (mm) Single/Dual Output Shaft Rated Torque (g·cm) Allowable Peak Torque (g·cm)
1 42 42.428 4 18*12*10 Reverse 3 1 Single/Dual 300 600
2 63 63.642 4 18*12*10 Reverse 2 1 Single/Dual 400 1200
3 80 80.808 4 18*12*10 Reverse 3 1 Single 400 1200
4 105 105.785 4 18*12*10 Reverse 3 1 Single 400 1200
5 118 117.483 4 18*12*10 Reverse 2 1 Single/Dual 400 1200
6 121 121.212 4 18*12*10 Reverse 2 1 Single 400 1200
7 127 127.285 4 18*12*10 Reverse 1 1 Single/Dual 400 1200
8 158 158.678 4 18*12*10 Reverse 2 1 Single 500 1500
9 200 201.399 5 18*12*10 Same 3 1 Single/Dual 600 1800
10 230 230.769 5 18*12*10 Same 3 1 Single/Dual 600 1800
11 235 234.956 4 18*12*10 Reverse 1 1 Single/Dual 600 1800
12 242 242.424 4 18*12*10 Reverse 1 1 Single 600 1800
13 302 302.098 5 18*12*10 Same 3/2 1 Single/Dual 800 2400
14 317 317.355 4 18*12*10 Reverse 1 1 Single 800 2400
15 343 343.802 5 18*12*10 Same 3 1 Single 800 2400
16 346 346.154 5 18*12*10 Same 2 1 Single/Dual 800 2400
17 453 453.147 5 18*12*10 Same 2 1 Single/Dual 800 2400
18 515 516.702 5 18*12*10 Same 2 1 Single 800 2400
19 584 584.222 5 18*12*10 Same 2 1 Single 800 2400
20 604 604.196 5 18*12*10 Same 1 1 Single/Dual 800 2400
21 692 692.308 5 18*12*10 Same 1 1 Single/Dual 800 2400
22 906 906.294 5 18*12*10 Same 1 1 Single/Dual 1000 3000
23 1031 1031.41 5 18*12*10 Same 1 1 Single 1000 3000
24 1047 1047.27 5 18*12*10 Same 1 1 Single/Dual 1000 3000
25 1350 1350.2 5 18*12*10 Same 1 1 Single 1000 3000
26 2025 2025.48 5 18*12*10 Same 1 1 Single 1000 3000

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

Why Choose us

SLW Motor Highlights

  • High reduction within a compact footprint

    The 42–2025 ratio span supports slow-speed output targets without requiring a larger gearbox envelope.

  • Single vs dual output shaft flexibility

    Many ratio sets support single or dual output shafts, which helps when you need symmetric output or simplified linkage routing.

  • Worm-start options shape output behavior

    Different worm-start counts are used across the ratio set to balance reduction target and practical output characteristics within the same housing size.

  • Rated vs peak torque for safer selection

    Use rated torque for continuous sizing and treat allowable peak torque as a short-duration margin for start-up and brief load spikes.

Custom

Beyond the Standard: Performance Customized

  • 01
    Lead Routing Design
    Lead routing can be optimized to avoid interference with gearbox body, mounting surfaces, and coupler clearance in compact enclosures.
  • 02
    Customized Shaft Interface
    Shaft end geometry can be tailored to your coupling method, enhancing slip control and assembly consistency.
  • 03
    Installation Alignment
    Share mounting orientation and load direction to ensure stable operation under real side and axial loads.
  • 04
    Control System Synchronization
    For start/stop and holding applications, control behavior can be aligned to minimize peak torque durations and maintain cycle consistency.
  • 05
    Application-Specific Matching
    Provide load type, duty cycle, and back-driving concerns to tailor ratio and shaft configurations to your real-world application.
  • Lead Routing Design
  • Customized Shaft Interface
  • Installation Alignment
  • Control System Synchronization
  • Application-Specific Matching

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FAQ

Frequently Asked Questions

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

Which ratios are better for moderate-speed output?
Lower ratios such as 42, 63, and 80 are typically chosen when you still need noticeable output speed with increased torque.
When should I consider ratios above 500?
Higher ratios are commonly selected when low-speed stability and torque margin matter more than output speed.
What does “worm starts” mean in the table?
It refers to the worm thread count used in that configuration, which is one of the factors tied to the achievable ratio and output behavior.
Can I choose single or dual output shafts?
Depending on the ratio set, single or dual output shaft configurations may be available, so you can match your linkage layout.
What do you need to define a custom output shaft?
Share your coupling method, assembly approach, and any slip or positioning constraints.
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