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Help CenterRing Gear External Gear 20MnCr5 Carburized Hardness HRC60±2 Max OD 5000mm
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Henan San Kuang Machinery Technology Co., Ltd. takes pride in offering high-quality Ring Gear External Gear manufactured from premium 20MnCr5 alloy steel. Our gear undergoes precise carburizing and hardening to achieve a surface hardness of HRC 60±2, delivering exceptional wear resistance and load-bearing capacity. With a maximum outer diameter of 5000 mm, this gear is designed for large-scale industrial applications where reliability and durability are paramount.
As a specialized manufacturer with over 10,000 square meters of factory space and 51-100 skilled employees, we utilize advanced machining and heat treatment facilities to ensure every gear meets stringent quality standards. Our products serve clients in North America, South America, Europe, Asia, Africa, and Oceania, and are shipped from major Chinese ports including Shanghai, Qingdao, Tianjin, and Lianyungang.
Key Features & Technical Specifications
Material Excellence: 20MnCr5 case-hardening steel provides a tough core and hard surface for superior fatigue strength.
Precise Hardening: Carburized and hardened to HRC 60±2, ensuring extended service life even under heavy loads.
Large Diameter Capacity: Max OD up to 5000 mm, suitable for mining mills, cement kilns, and heavy rotating equipment.
External Gear Design: Optimized tooth geometry for efficient power transmission and low noise operation.
Customizable Parameters: Module, pressure angle, tooth count, and bore size can be tailored to customer drawings.
Rigorous Quality Control: 100% ultrasonic testing, magnetic particle inspection, and hardness verification on every gear.
| Parameter | Value |
|---|---|
| Material | 20MnCr5 (DIN 1.7147) |
| Heat Treatment | Carburized + Quench + Tempering |
| Hardness (Surface) | HRC 60 ± 2 |
| Max Outer Diameter | 5000 mm |
| Module Range | 10 – 50 (customizable) |
| Accuracy Grade | DIN 6 – 8 (as required) |
| Application | Mining mills, cement kilns, crushers, rotary dryers |
Advantages for Your Business
Choosing our ring gear means investing in long-term operational efficiency. The combination of 20MnCr5 material and carburizing process results in excellent impact resistance and minimal wear, reducing downtime and maintenance costs. Our large-diameter capability (up to 5000 mm) eliminates the need for segmented designs, ensuring smoother assembly and higher concentricity. Additionally, our flexible customization options allow you to match exact module, tooth profile, and mounting requirements, making integration into existing systems hassle-free.
Trust & Reliability – Why Choose Us
Since our establishment in 2022, Henan San Kuang Machinery Technology Co., Ltd. has rapidly grown to serve customers across 15+ global markets. Our annual export value exceeds US$2.5 million, a testament to the trust placed in our products. With a dedicated R&D team and state-of-the-art heat treatment furnaces, we deliver consistent quality for demanding applications. We are committed to on-time delivery and responsive after-sales support, with shipping options from four major ports in China. Contact us today to discuss your specific ring gear requirements and experience the San Kuang difference.
Frequently Asked Questions (FAQ)
1. What is the maximum outer diameter you can produce for ring gears?
Our standard maximum outer diameter is 5000 mm. Larger diameters can be discussed on a custom basis.
2. Can you customize the module and tooth profile?
Yes, we offer full customization of module, pressure angle, tooth count, bore diameter, and keyways according to your drawings or specifications.
3. What is the typical lead time for a ring gear of 4000 mm OD?
Lead time depends on complexity and current production load, but typically ranges from 45 to 60 days for standard specifications. Rush orders may be arranged.
4. How do you ensure the hardness consistency across the gear tooth surface?
We use precise carburizing furnaces with controlled atmosphere and perform 100% hardness testing on multiple tooth positions to guarantee HRC 60±2.
5. Which ports do you ship from, and what are your packaging methods?
We ship from Port of Shanghai, Port of Lianyungang, Port of Qingdao, and Port of Tianjin. Gears are securely packed with wooden crates, anti-rust protection, and bolted supports to prevent damage during transit.
6. Do you offer heat treatment services for customer-supplied materials?
Yes, we can provide carburizing and hardening services on customer-supplied blanks, subject to material compatibility and quality inspection.
7. What is the minimum order quantity (MOQ) for ring gears?
Our MOQ is 1 piece for custom orders. For standard designs, we accept small batches as well.
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