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As a specialized manufacturer from Henan San Kuang Machinery Technology Co., Ltd., we are proud to present our Helical Gear Induction Hardened Teeth Low Backlash Gearbox Gear — a core component engineered for high-performance transmission systems. With our factory spanning 10,000–30,000 square meters and a dedicated team of 51–100 employees, we combine advanced manufacturing capabilities with rigorous quality control to deliver gears that ensure smooth, quiet, and precise power transmission. Our gears are widely trusted in markets across North America, South America, Europe, and Asia, making them a reliable choice for demanding industrial applications.
This helical gear is designed with induction-hardened teeth to achieve superior surface durability while maintaining a tough core, effectively resisting wear and pitting under heavy loads. The low backlash feature minimizes rotational play, ensuring accurate positioning and repeatability — essential for servo drives, robotics, CNC machinery, and other precision equipment. By optimizing the helix angle and tooth profile, we achieve excellent load distribution and reduced vibration, extending the service life of both the gear and the complete gearbox.
Key Features & Technical Specifications
- Induction Hardened Teeth: Surface hardness up to HRC 58–62, with hardened depth of 0.8–2.5 mm (customizable). This provides high resistance to contact fatigue and abrasive wear.
- Low Backlash Design: Backlash adjustable from 0.02 mm to 0.08 mm, enabling high-precision motion control and reduced noise/vibration.
- High-Quality Material: Manufactured from selected alloy steels such as 20CrMnTi or 40Cr, with carburizing and quenching processes available upon request.
- Precision Machining: Gear cutting using hobbing and shaving, finished with grinding for accuracy grade up to DIN 6 (customizable).
- Customizable Parameters: Module, number of teeth, helix angle, face width, and overall dimensions can be tailored to your specific gearbox design.
- Balanced Heat Treatment: Induction hardening followed by tempering to reduce internal stress and ensure dimensional stability.
- Rigorous Testing: Each batch undergoes material analysis, hardness testing, gear runout inspection, and meshing noise test.
| Parameter | Standard Range | Custom Options |
|---|---|---|
| Module (m) | 1.5 – 12 mm | Up to 20 mm upon request |
| Number of Teeth (Z) | 10 – 200 | Unlimited (engineering approval) |
| Helix Angle | 15° – 35° | Custom angles available |
| Surface Hardness | HRC 58 – 62 | HRC 55 – 65 on request |
| Backlash (at center distance) | ≤ 0.05 mm | Tightened to 0.02 mm possible |
| Accuracy Grade | DIN 7 | DIN 6 with grinding |
Benefits to Your Application
- Enhanced Durability: Induction-hardened teeth extend gear life by 2–3 times compared to untreated gears, reducing maintenance costs.
- Quiet Operation: Helical engagement and low backlash significantly lower noise levels (typically
- Higher Torque Capacity: Optimized tooth profile and heat treatment allow up to 20% more torque transmission for the same size.
- Improved Positioning Accuracy: Low backlash ensures precise angular positioning, ideal for indexing tables, rotary axes, and automated assembly.
- Versatile Compatibility: Can be integrated into standard or custom gearboxes, including planetary, parallel shaft, and right-angle configurations.
At Henan San Kuang Machinery Technology Co., Ltd., we understand that every transmission system has unique demands. Our engineering team works closely with clients to optimize gear geometry, material selection, and heat treatment processes. With an annual export value of US$2.5–5 million and a network serving over 10 countries on 5 continents, we have established a reputation for reliability and precision. Our factory is equipped with advanced CNC hobbing machines, gear grinders, and induction hardening stations, all operated by experienced technicians. We offer flexible delivery options via ports of Shanghai, Lianyungang, Qingdao, and Tianjin.
We back our gears with a comprehensive quality assurance system, including 100% inspection of critical dimensions and material certifications. From prototype to mass production, we ensure consistent quality and on-time delivery. Whether you need a standard replacement gear or a custom design for a new project, our team is ready to support you.
Frequently Asked Questions (FAQ)
Q1: What materials are used for your helical gears?
A: We primarily use alloy steels such as 20CrMnTi and 40Cr. For special requirements, stainless steel or case-hardened steels are available upon request.
Q2: What is the typical lead time?
A: For standard sizes with existing tooling, lead time is 20-30 days. Custom designs may require 35-45 days depending on complexity and quantity.
Q3: Can you provide gears with backlash less than 0.02 mm?
A: Yes, we can achieve backlash as low as 0.01 mm through selective assembly and grinding. Please consult our engineers for feasibility.
Q4: How do you ensure the quality of induction hardening?
A: We control hardening depth and pattern via precise inductor design and process monitoring. Each gear is tested for surface hardness and microhardness depth profile.
Q5: Do you supply complete gearboxes or only gears?
A: We focus on gear manufacturing, but we can also supply matched pinions, shafts, or sub-assemblies. For complete gearboxes, we recommend our partner brands.
Q6: What is the maximum size you can produce?
A: Our current capacity can handle gears up to 1200 mm in diameter and modules up to 20 mm. For larger sizes, please contact us with your specifications.
Q7: Are your gears suitable for high-speed applications?
A: Yes, our helical gears are designed for peripheral speeds up to 60 m/s with proper lubrication and balancing. Induction hardening ensures minimal distortion at high speeds.
Q8: Do you provide samples for testing?
A: Absolutely. We can produce small quantities for prototype testing. Sample costs and lead time depend on design complexity and tooling requirements.
Partner with Henan San Kuang Machinery Technology Co., Ltd. for your next gear project. With our modern 10,000–30,000 m² facility, experienced engineers, and global export experience, we deliver gears that drive your success. Contact us today for a quote or technical consultation.
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