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Help CenterIndustrial Transmission Gear Parts With Case Carburized Surface
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Welcome to Henan San Kuang Machinery Technology Co., Ltd. Since our establishment in 2014, we have been dedicated to supplying high-quality industrial transmission gear parts with case carburized surfaces. Our 10,000-30,000 square meter factory, staffed by 51-100 experienced professionals, ensures precision and reliability in every component. These gear parts are designed to endure heavy loads and harsh operating conditions, providing exceptional wear resistance and long service life. Choose Sankuang for durable, cost-effective solutions that keep your machinery running smoothly.
Product Features & Technical Specifications
- Case Carburized Surface: A controlled carburizing process creates a hard, wear-resistant outer layer (typically 0.8-1.5 mm case depth) while retaining a tough, ductile core. This reduces surface fatigue and extends gear life by up to 3× compared to standard hardening.
- Precision Machining: Using CNC gear hobbing, shaping, and grinding, we achieve AGMA Q10-Q12 quality levels (DIN 6-7), ensuring smooth meshing and low noise operation.
- Material Options: Commonly made from low-carbon alloy steels like 20CrMnTi, 20CrNiMo, or 20CrMnMo, with optional nitriding or induction hardening for specialized applications.
- Comprehensive Heat Treatment: After carburizing, we perform quenching and tempering to optimize hardness and toughness. Hardness reaches HRC 58-62 on the surface with a core hardness of HRC 30-45.
- Dimensional Flexibility: Our gears range from 50 mm to 2000 mm in outer diameter, with module 2-20. Custom tooth profiles, keyways, and bores are available to fit your exact requirements.
- Rigorous Quality Control: Every batch is tested for case depth, surface hardness, core hardness, and metallographic structure. We use Rockwell hardness testers, spectrometers, and coordinate measuring machines (CMM).
- Versatile Applications: Ideal for heavy industrial gearboxes, mining equipment, wind turbines, cranes, cement mills, and marine transmissions. Our parts withstand high torque, shock loads, and continuous operation.
Typical Performance Parameters
| Parameter | Value |
|---|---|
| Case Depth (effective) | 0.8 – 2.0 mm (adjustable) |
| Surface Hardness | HRC 58 – 62 |
| Core Hardness | HRC 30 – 45 |
| Outer Diameter Range | 50 – 2000 mm |
| Module Range | 2 – 20 |
| Quality Level | AGMA Q10–Q12 / DIN 6–7 |
| Max Tooth Face Width | 500 mm |
Advantages for Your Business
- Extended Service Life: Case carburizing resists pitting, spalling, and abrasive wear, reducing replacement frequency. Field reports show a 30–50% longer lifespan versus induction-hardened gears in similar applications.
- Lower Operating Costs: Improved fatigue strength means fewer downtime events. Each gear part is engineered to handle high contact stresses (up to 1500 MPa) without failure.
- Customized Solutions: Our engineers collaborate with you to optimize gear geometry, root fillet, and tooth flank finish for your specific load and speed conditions. Prototypes are available.
- Consistent Quality: Our facility is ISO9001, ISO14000, TS16949, and OHSAS18001 certified (among others). We utilize SPC and FMEA to maintain low defect rates (annual PPM < 500).
- Global Logistics: We ship through Port of Shanghai, Lianyungang, Qingdao, or Tianjin to customers in North America, Europe, Southeast Asia, Africa, Oceania, etc. Lead times average 30–45 days for custom gears.
Trust & Reliability
Since 2014, Henan San Kuang Machinery has delivered over 200,000 gear parts to more than 30 countries. Our annual export value ranges US$2.5–5 million, reflecting strong global demand. With certifications including ISO9001, TL9000, QS9000, SA8000, ISO14000, and many more, we ensure compliance with international standards. Our OHSAS18001 certification underlines our commitment to safe manufacturing. We invite you to experience the Sankuang difference: precision, durability, and responsive customer service. Contact us today for a quote or technical consultation.
Frequently Asked Questions
1. What is the typical case depth of your carburized gears?
We offer effective case depths from 0.8 mm to 2.0 mm, adjustable based on your load and wear requirements. Deeper cases (up to 3.0 mm) are possible for heavy-duty applications.
2. Can you manufacture gears with non-standard tooth profiles?
Yes. We can produce involute, cycloidal, and other custom profiles using our CNC hobbing and grinding machines. Please provide a drawing or specification for review.
3. Do you provide heat treatment certificates?
Absolutely. Every order includes a detailed material test certificate and heat treatment report, including hardness values, case depth, and microstructural analysis.
4. What is the minimum order quantity (MOQ) for custom gears?
Our MOQ is typically 10 pieces for standard sizes. For very large gears (OD > 1000 mm) or complex designs, MOQ may be 1–2 pieces. Contact our sales team for exact terms.
5. How do you ensure dimensional accuracy for large gears?
We use coordinate measuring machines (CMM) and gear analyzers to inspect tooth geometry, runout, and pitch variation. Our quality system complies with ISO9001 and TS16949 standards.
6. What materials do you recommend for high-torque applications?
For high torque and impact loads, we suggest 20CrNiMo or 20CrMnMo alloys. Core toughness is enhanced by our controlled quenching process. Surface carburizing then resists wear.
7. Are you able to supply prototype quantities before mass production?
Yes. We offer prototype services with a lead time of 15–20 working days. Once approved, we can proceed with serial production using the same process parameters.
8. What packaging do you use for export shipments?
Gears are individually wrapped with anti-rust paper, secured in wooden crates or pallets. We can customize packaging to your requirements (e.g., vacuum sealing, fumigation-free crates).
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