Robotic arm rotary module for robots QJS 10

for joint

Product overview
The QJS 10 mm dexterous hand joint module is an ultra-compact all‑metal planetary gear motor module designed for integration into dexterous hands, humanoid robots and other space‑constrained robotic applications. It features precision‑machined metal gears and a stainless steel output shaft with roller bearing for reliable power transmission.

Key features

• 10 mm outer diameter suitable for compact joints
• All‑metal planetary gear construction for dimensional stability
• Stainless steel output shaft with roller bearing
• High transmission efficiency (up to 90% depending on stage)
• Multiple gear stage options (1–4) and reduction ratios
• Customizable design to customer requirements

Technical parameters
Model: QJS 10 mm
Number of gear stages: 1 | 2 | 3 | 4
Reduction ratios: 1-stage: 4, 6 | 2-stage: 16, 24, 36 | 3-stage: 64, 96, 144, 216 | 4-stage: 256, 384, 576, 864, 1296
Gear length (mm): 1-stage: 12.3 | 2-stage: 15 | 3-stage: 17.5 | 4-stage: 20.2
Max. continuous torque (kgf·cm): 1-stage: 0.35 | 2-stage: 0.65 | 3-stage: 1.2 | 4-stage: 1.8
Max. momentary torque (kgf·cm): 1-stage: 0.6 | 2-stage: 1.0 | 3-stage: 1.6 | 4-stage: 2.5
Efficiency (%): 1-stage: 90 | 2-stage: 81 | 3-stage: 73 | 4-stage: 65
Motor length: depends on chosen motor (total motor length determined by specified motor)
Outer diameter: 10 mm
Gear structure: Planetary
Output shaft material: Stainless steel
Output shaft bearing type: Roller bearing
Gear material: Precision‑machined metal gears
Housing material: Metal
Operating humidity: 20%–85% RH
Operating temperature: -25°C – +100°C
Customization: Designed and manufactured according to customer requirements

Applications & integration

• Dexterous robotic hands and finger joints
• Humanoid robot wrists and small joints
• Space‑limited robotic end‑effectors and actuators
• OEM integration for custom robotic subsystems