36P 36 mm Planetary Gearbox - Technical Datasheet v1.0¶
Status: Public engineering evaluation reference
Release date: 2026-10-06
The SigGear 36P is a 36 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 | 36 mm |
| Number of stages | 1-4 |
| Gearbox length range | 30.6–61.5 mm |
| Reduction ratio range | 3.66:1–625:1 |
| Rated allowable torque range | 40.0–100.0 kgf·cm |
| Maximum momentary torque range | 80.0–200.0 kgf·cm |
| Efficiency range | 66–90% |
| Backlash at no load | ≤ 1.2° |
| 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 | 30.6 mm | 3.66 / 4.2 / 5.0 | 40.0 kgf·cm | 80.0 kgf·cm | 90% |
| 2 | 40.9 mm | 13.4 / 15.4 / 17.6 / 18.3 / 21 / 25 | 60.0 kgf·cm | 120.0 kgf·cm | 80% |
| 3 | 51.2 mm | 49 / 56.3 / 64.6 / 67 / 74.1 / 76.9 / 88.2 / 91.5 / 105 / 125 | 80.0 kgf·cm | 160.0 kgf·cm | 73% |
| 4 | 61.5 mm | 179.4 / 205.9 / 236.3 / 245.1 / 271.2 / 281.3 / 311.2 / 322.8 / 334.9 / 370.5 / 384.3 / 441 / 457.5 / 525 / 625 | 100.0 kgf·cm | 200.0 kgf·cm | 66% |
Published Load / Shaft Limits¶
| Parameter | Public value |
|---|---|
| Radial load, 10 mm from flange | ≤ 10.0 kgf |
| Shaft axial load | ≤ 6.0 kgf |
| Radial shaft play | ≤ 0.04 mm |
| Thrust shaft play | ≤ 0.3 mm |
Only values currently published for 36P are shown. Do not transfer limits from another frame size.
Motor Matching Reference¶
- Adapted DC motor nominal voltage: 3–48 VDC
- Adapted DC motor power: below 150 W
These are motor-matching conditions, not electrical ratings of the mechanical gearbox.
Mechanical Interface and CAD¶
View 36P Mechanical Interface v1.0
Download 36P 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