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Help CenterHeavy Duty Gear Coupling for Steel Mill Roller Drive 1000Nm Torque
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Powering Steel Mill Roller Drives with Precision and Durability
Henan San Kuang Machinery Technology Co., Ltd. – a professional manufacturer with a 10,000–30,000 square meter factory and an annual export value between US$2.5M and US$5M – proudly presents our Heavy Duty Gear Coupling designed specifically for steel mill roller drives. Rated for 1000Nm torque, this coupling delivers exceptional reliability in the most demanding industrial environments. With over 51–100 skilled employees and a track record of serving markets across North America, South America, Europe, Asia, Africa, and Oceania, we bring years of engineering expertise to every component we produce.
Our gear coupling is engineered to transmit high torque while compensating for misalignment, thermal expansion, and shock loads common in steel mill applications. The crowned tooth profile ensures smooth engagement and reduces wear, extending service life. Whether you need to connect a motor to a roller table or drive a high-torque mill, this coupling offers a robust solution that minimizes downtime and maintenance costs.
Below you will find a detailed overview of the technical specifications, key features, and benefits that make our heavy duty gear coupling a preferred choice for the steel industry.
Technical Specifications
| Parameter | Value |
| Rated Torque | 1000 Nm |
| Maximum Speed | 5000 RPM (depending on size and balancing grade) |
| Bore Diameter Range | 20 mm – 80 mm (customizable up to 120 mm upon request) |
| Material | High-strength alloy steel (40Cr / 42CrMo or equivalent) |
| Heat Treatment | Carburizing and quenching (hardness HRC 58–62) |
| Misalignment Capacity | Angular ≤ 1.5°, Parallel ≤ 0.5 mm |
| Lubrication | Grease or oil (sealed or open design – optional) |
| Operating Temperature | -20°C to +120°C (higher temperature options available) |
Key Features & Benefits
- Crowned Tooth Profile: Reduces edge stress and allows for smooth engagement, even under significant misalignment. This extends gear life and reduces vibration.
- Robust Construction: Manufactured from high-quality alloy steel with heat treatment, the coupling withstands high shock loads, heavy impacts, and continuous operation in steel mills.
- High Torque Density: The compact design delivers 1000Nm without excessive bulk, making it ideal for space-constrained roller drive installations.
- Customizable Bore and Keyway: We offer customized bore sizes, keyways, and overall dimensions to match your existing shafts. Simply provide your requirements and we can adjust.
- Easy Maintenance: Optional split cover design allows quick inspection and re-lubrication. The coupling can be disassembled without moving connected equipment, saving valuable downtime.
- Versatile Mounting: Both straight and tapered hub configurations are available. Flange or sleeve mounting options can be accommodated.
- Proven Durability: Designed for millions of cycles in heavy industrial applications. Our couplings are tested for fatigue resistance and load capacity.
Our heavy duty gear coupling is particularly well-suited for steel mill roller drives, where high torque, thermal expansion, and alignment challenges are common. The coupling’s ability to absorb shock loads protects connected machinery (motors, reducers, rollers) from damage, reducing overall system maintenance costs. Additionally, the sealed lubricant chamber option minimizes contamination in dusty steel mill environments.
We understand that every application is unique. That is why we offer engineering support to help select the correct coupling size, lubrication type, and installation method. From initial inquiry to after-sales support, our team ensures you receive a product that performs optimally for years.
Trusted by Global Industries
Henan San Kuang Machinery Technology Co., Ltd. has been supplying heavy duty gear couplings since 2022, yet our team brings decades of combined experience in power transmission components. Our factory occupies over 10,000 square meters and houses advanced CNC machining, heat treatment, and testing facilities. We export to more than 10 international markets, including the United States, Germany, Australia, and South Africa. Our annual export value of US$2.5–5 million reflects our commitment to quality and global standards.
We ship via major Chinese ports (Shanghai, Lianyungang, Qingdao, Tianjin) ensuring timely delivery worldwide. Every coupling undergoes 100% dimensional inspection and torque testing before leaving our factory. We also offer optional dynamic balancing up to G6.3 grade for high-speed applications.
Whether you need a single replacement coupling or a volume order for a new rolling mill project, we are ready to partner with you. Contact us today to discuss your specific requirements and receive a competitive quotation.
Frequently Asked Questions
1. Can this coupling be used for other applications besides steel mills?
Yes. While optimized for steel mill roller drives, the 1000Nm gear coupling is suitable for various heavy-duty transmissions such as mining conveyors, cement mills, crushers, and paper machines. However, we recommend consulting our engineers to confirm compatibility with your specific operating conditions.
2. What is the typical lead time for a standard coupling?
For standard sizes with common bore dimensions, lead time is approximately 15–25 working days. Customized orders may require 25–40 working days depending on complexity. We can expedite rush orders subject to factory capacity.
3. Do you provide a warranty?
Yes. We offer a 12-month warranty from the date of shipment covering manufacturing defects. The warranty does not cover improper installation, misuse, or normal wear. Extended warranty options are available upon request.
4. How do I determine the correct coupling size for my motor and roller drive?
You need to provide the shaft diameters, keyway sizes, torque required, operating speed, and any misalignment conditions. Our technical team can calculate the appropriate coupling and may recommend a larger or smaller torque rating if needed. We can also provide a detailed selection guide.
5. Is the coupling supplied with lubrication? What type of grease do you recommend?
Standard couplings are supplied without grease to allow the customer to choose the appropriate lubricant. We can pre-fill with high-temperature extreme pressure (EP) grease upon request. For oil-lubricated versions, we can advise on suitable oil viscosity based on your speed and temperature.
6. Can you provide a protective coating for outdoor or corrosive environments?
Yes, we offer surface treatments such as phosphating, black oxide, or special painting (e.g., epoxy) for corrosion resistance. Please specify the environmental conditions so we can recommend the best coating.
7. How do you ensure the quality of the gear teeth?
All gear teeth are cut using precision hobbing or shaping machines. After heat treatment, we perform gear inspection using coordinate measuring machines (CMM) to confirm tooth profile, lead, and spacing tolerances. Hardness tests are conducted on every batch.
8. What is the maximum angular misalignment this coupling can handle?
For the 1000Nm gear coupling, the maximum angular misalignment is 1.5° (degrees) at rated load. Higher misalignment may reduce service life. We can design special couplings for larger misalignment values if needed.
Conclusion: Henan San Kuang Machinery Technology Co., Ltd. provides heavy duty gear couplings that combine rigorous engineering, robust materials, and global reliability. With 1000Nm torque capacity and extensive customization options, our coupling is the ideal choice for steel mill roller drives and beyond. Leverage our factory’s skilled team and export experience – contact us today to place your order or request a technical consultation.
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