14P 14 mm Planetary Gearbox - Technical Datasheet v1.0¶
Status: Public engineering evaluation reference
Release date: 2026-10-06
The SigGear 14P is a 14 mm planetary gearbox platform with one- to four-stage configurations. Performance values below are consolidated from the current canonical product page. Mechanical-interface details are linked to the controlled 2D drawing reference released for this model.
Key Specifications¶
| Parameter | Public value |
|---|---|
| Nominal outer diameter | 14 mm |
| Number of stages | 1-4 |
| Gearbox length range | 15.2–26.6 mm |
| Reduction ratio range | 3.75:1–443.3:1 |
| Rated allowable torque range | 3.5–6.0 kgf·cm |
| Maximum momentary torque range | 7.0–12.0 kgf·cm |
| Efficiency range | 66–90% |
| Backlash at no load | ≤ 1.5° |
| Continuous permissible input speed | ≤ 8,000 rpm |
| Operating temperature range | −40 to 120 °C |
Maximum momentary torque is not a continuous working rating.
Stage, Ratio and Performance¶
| Stages | Gearbox body length L | Available ratios | Rated allowable torque | Maximum momentary torque | Efficiency |
|---|---|---|---|---|---|
| 1 | 15.2 mm | 3.75 / 4.38 / 4.66 | 3.5 kgf·cm | 7.0 kgf·cm | 90% |
| 2 | 19.0 mm | 14 / 16.4 / 17.5 / 19.2 / 20.4 / 21.7 | 4.0 kgf·cm | 8.0 kgf·cm | 80% |
| 3 | 22.8 mm | 52.7 / 61.6 / 65.5 / 71.9 / 76.5 / 81.4 / 84 / 89.4 / 95.1 / 101.2 | 5.0 kgf·cm | 10.0 kgf·cm | 73% |
| 4 | 26.6 mm | 197.75 / 231 / 245.74 / 269.8 / 287 / 305.4 / 315.1 / 335.25 / 356.7 / 368 / 379.5 / 391.6 / 416.6 / 443.3 | 6.0 kgf·cm | 12.0 kgf·cm | 66% |
Published Load / Shaft Limits¶
| Parameter | Public value |
|---|---|
| Radial load, 10 mm from flange | ≤ 0.8 kgf |
| Shaft axial load | ≤ 0.25 kgf |
| Radial shaft play | ≤ 0.04 mm |
| Thrust shaft play | ≤ 0.2 mm |
Only values currently published for 14P are shown. Do not transfer limits from another frame size.
Motor Matching Reference¶
- Adapted DC motor nominal voltage: 3–36 VDC
- Adapted DC motor power: below 5 W
These are motor-matching conditions, not electrical ratings of the mechanical gearbox.
Mechanical Interface and CAD¶
View 14P Mechanical Interface v1.0
Download 14P Simplified STEP - 4-Stage Reference
A simplified public 4-stage STEP reference is released for early packaging and mechanical Design-In. The detailed full-assembly STEP remains configuration-controlled and request-only because it contains internal planetary transmission geometry.
For final CAD, provide the selected ratio, stage count and motor interface.
Request CAD / Controlled Drawing
Selection Information Required¶
Please provide:
- Required output speed or reduction ratio
- Continuous and momentary output torque
- Motor voltage, power and speed
- Motor shaft diameter and length
- Motor mounting-hole pattern and locating pilot
- Output-shaft requirements
- Radial and axial loads
- Duty cycle and ambient temperature
- Backlash, noise and service-life targets
- Prototype and annual quantity
Related Product¶
Engineering Contact¶
Wanrong Wang
International Sales / Sales Engineer, SigGear
wangwanrong@siggear.com