Robot 0° Spiral Gear Integrated Tooth-Shaft One-Piece Machining
This gear belongs to the Zerol Bevel Gear category and features an "integrated tooth-shaft" design. As a key precision component for robotic joint transmission, it can be introduced from the following aspects:
1. Structural & Design Highlights
▶0° Spiral Tooth Profile: The tooth line follows a spiral curve, yet the spiral angle at the midpoint of the tooth width is 0°. It integrates the advantages of straight bevel gears and spiral bevel gears.
▶Integrated Tooth-Shaft: The gear tooth and shaft are machined as a single piece, eliminating fit clearance from traditional connections. This significantly boosts transmission rigidity and precision, meeting robotic joints’ demands for high responsiveness and no motion backlash.
2. Process & Precision Features
▶Precision Grinding: Produced via CNC profile grinding machines, the tooth surface achieves AGMA Class 12 precision, with meshing backlash controlled within 5 μm. This ensures micron-level repeat positioning accuracy for end effectors.
▶Heat Treatment: Teeth undergo carburizing, quenching, and low-temperature tempering, reaching a surface hardness of HRC 58–62 while retaining core toughness. This resists tooth wear and withstands impact loads.
3. Robotic Scenario Adaptation
Different robot types demand unique "precision, load, and space" tradeoffs, and this 0° spiral gear (integrated tooth-shaft type) excels across scenarios:
| Robot Type |
Key Requirements |
Gear Advantages in This Scenario |
| Collaborative Robots |
Low noise, compact structure |
- Continuous meshing + no axial thrust → noise < 55 dB. |
| - No extra bearings → ultra-compact joints |
| Humanoid Robots |
Lightweight, high rigidity |
- Integrated design → 15% weight reduction vs. split structures. |
| - Spiral tooth geometry → 30% higher single-tooth load capacity. |
| Heavy-Duty Industrial Robots |
High torque, long lifespan |
- High tooth hardness + large contact ratio → withstands >200 N·m torque. |
| - Durability: >10,000 hours of heavy-load operation with minimal wear. |
4. Technological Trends
To align with robots’ "intelligent, maintenance-free" evolution, 0° spiral gears are advancing in two directions:
▶Smart Sensing: Micro torque sensors are embedded in the shaft to enable real-time load monitoring, powering robots’ force-control algorithms.
▶Self-Lubrication: Tooth surfaces use diamond-like carbon (DLC) coatings, slashing friction coefficients from 0.15 to 0.08 to enable oil-free operation — ideal for medical robots.
In summary, the "0° spiral tooth + integrated tooth-shaft" design, via structural integration and advanced manufacturing, serves as a core transmission component for robotic joints — delivering high precision, rigidity, and scenario-specific adaptability, especially in space-constrained, high-response applications.
DINGSCO Precision Gear Solutions — Pioneering Force in Equipment Transmission
Core Advantages: Cutting-Edge Equipment × Digitalized Processes × Full-Cycle Services
As a leading precision gear manufacturer, DINGSCO specializes in customized production of micro high-precision spiral bevel gears and hypoid gears through our multiple CNC seven-axis five-linkage spiral bevel gear grinding/milling machines and Gleason spiral bevel cutter technology. With DIN 6 precision class (tooth profile error ≤ ±5μm), 95%+ transmission efficiency, and ultra-high reduction ratios, we deliver reliable transmission solutions for robotics, motor drives, new energy vehicles, and more.
Why Choose DINGSCO?
✅ High Precision: Achieving DIN 6 grade accuracy, leading the industry in controlling tooth profile errors.
✅ High Efficiency: With a single - stage reduction ratio of up to 300:1, and a transmission efficiency of over 95%.
✅ Durability: 40% lower lifecycle cost, <0.5% failure rate.
✅ Fast response: The digital process can shorten the delivery cycle to 20 working days.
Contact Us Soon for gear optimization proposals and 3D meshing simulations!
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