KB Series Precision Helical Planetary Gearbox | High Torque
High-performance helical gear planetary gearbox with square output flange, optimized for maximum torque, precision, and durability in industrial applications.
Product Highlights
Gear Ratio Range
i=3–100, stable torque for diverse applications
Backlash Accuracy
Economy ≤ 8′ / Precision ≤ 5′, ensuring positioning precision
High Efficiency
Transmission efficiency ≥95%, low energy loss
Mounting Options
Flange, foot, or shaft output for easy integration
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Description
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Specifications
Overview
The KB Series Helical Planetary Gearbox is designed for applications that demand
maximum torque, high precision, and reliable performance under challenging conditions.
As a high-performance helical planetary gearbox, it uses preloaded tapered roller bearings and specially matched seals to ensure stable operation even in environments with dust or water spray.
Its coaxial helical gear design delivers smooth, low-noise torque transmission, making the KB Series an excellent choice for robotics, industrial automation, and high-performance machinery.
Key Features
- ⚙️ Helical Precision Line – Optimized for smooth, low-noise operation with high torque capacity
- 🔄 Coaxial Helical Gearbox – Ensures precise torque transmission with minimal backlash
- 🛠️ Preloaded Tapered Roller Bearings – Handle high axial and radial loads efficiently for longer service life
- 📏 Wide Gear Ratio Range – From i=3 up to i=100, suitable for diverse industrial applications
- 🧩 Square Output Flange – Flexible and easy mounting for seamless integration in machinery
- 🔁 Equidirectional Rotation – Fully compatible with complex automation layouts
- 🌀 Sealed & Robust Construction – Reliable operation in dusty or wet environments, reducing downtime
Applications
The KB Series Helical Planetary Gearbox is widely used across industries requiring high torque, precision, and durability, including:
- 🤖 Robotics & Assembly Lines – Precision motion control for robotic arms, pick-and-place systems, and automation cells
- 🏭 Industrial Automation Equipment – CNC machines, machine tools, and production lines
- 🚚 Conveyor & Material Handling Systems – Smooth, reliable operation under continuous duty cycles
- 📦 Packaging & Labeling Machinery – Accurate, low-noise torque transmission for packaging processes
- ⚡ High-Performance Machinery – Equipment requiring stable operation under heavy loads and precise torque control
| Parameter | Value |
|---|---|
| Frame Sizes | 60mm, 90mm, 115mm, 142mm, 180mm, 220mm |
| Planetary Gear Ratios | 3:1 – 100:1 |
| Max Input Speed | 10,000 rpm |
| Backlash (arcmin) | Stage 1 (Ratio 3–10): P0 ≤ 1′, P1 ≤ 3′, P2 ≤ 5′Stage 2 (Ratio 15–100): P0 ≤ 3′, P1 ≤ 5′, P2 ≤ 7′ |
| Noise Level | ≤ 63 dB |
| Protection Grade | IP65 |
Certifications
Quality Management
Environmental Standard
European Conformity
China Compulsory Cert
Frequently Asked Questions
Yes, the KB Series is designed for high-load and high-speed operations with preloaded tapered roller bearings and helical gears.
Choose based on your motor speed and required output torque. Contact our sales team for assistance.
Yes, the KB Series is compatible with both servo and standard AC/DC motors.
60mm, 90mm, 115mm, 142mm, 180mm, and 220mm, suitable for a wide range of industrial machinery.
Up to 10,000 rpm.
Designed for ≥20,000 hours of reliable operation.
Preloaded tapered roller bearings for high axial and radial load capacity.
Yes, the specially matched seal provides protection against dust and water spray in harsh industrial environments.
👉 Related Products:
AC Speed Control Motor | AC Induction Gear Motor | AC Torque Motor | AC Brake Motor |AC Reversible Motor | AC Parallel Shaft Gear Motor | Brushed DC Gear Motor |
Brushless DC Gear Motor | Planetary Gearbox | Motor Drives &Controllers|

