SWC Universal Joint Coupling Flange Type Hardened Cross Shaft For Rolling Mill Transmission
Product Spotlights
Hebei Speed Torque Transmission Technology Co., Ltd., established in 2017 with a factory spanning 3,000–5,000 square meters and an annual export value of US$5–10 million, is a professional manufacturer of driveline components. Our SWC Universal Joint Coupling Flange Type Hardened Cross Shaft is specifically engineered for heavy-duty rolling mill transmissions, offering exceptional durability, precise torque transmission, and long service life. Backed by ISO9001 certification and a dedicated team of 101–200 employees, we deliver reliable solutions trusted by markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, and more.
This coupling adopts a flange-type connection for easy installation and alignment, combined with a hardened cross shaft (surface hardness HRC 58–62) to withstand extreme shock loads and repetitive stress common in rolling mill applications. The universal joint design compensates for angular misalignment up to 15°, while maintaining high transmission efficiency. Available in a wide range of sizes from SWC180 to SWC800, our couplings can be customized in length, flange dimensions, and bore diameter to meet your specific mill requirements.
Key Features & Technical Specifications
- Hardened Cross Shaft: Through-hardened and induction-hardened to HRC 58–62, ensuring superior wear resistance and fatigue life.
- Flange Design: Precision-machined flanges with standardized bolt patterns (DIN or custom) for quick mounting and dismounting.
- High Torque Capacity: Designed to handle peak torques from 500 N·m to 50,000 N·m, suitable for main drive and auxiliary drives in rolling mills.
- Alloy Steel Construction: Manufactured from 40Cr or 42CrMo alloy steel, heat-treated for optimal strength and toughness.
- Sealed Bearings: Equipped with high-capacity needle bearings and multi-lip seals to retain grease and exclude contaminants.
- Low Maintenance: Grease-lubricated for extended intervals; lubrication fittings are easily accessible.
- Customizable Options: Available with different yoke lengths, bore sizes, keyways, and special coatings (e.g., phosphating, blackening, or galvanizing).
Typical Technical Parameters (Reference)
| Model | Max Torque (N·m) | Flange Diameter (mm) | Allowable Misalignment (°) | Weight (kg) |
|---|---|---|---|---|
| SWC180 | 1,250 | 180 | 15 | 28 |
| SWC225 | 2,800 | 225 | 15 | 52 |
| SWC285 | 5,600 | 285 | 14 | 95 |
| SWC350 | 12,000 | 350 | 13 | 175 |
| SWC440 | 22,000 | 440 | 12 | 310 |
Benefits for Your Rolling Mill Operation
- Reduced Downtime: The hardened cross shaft and durable bearings minimize wear, extending maintenance intervals by up to 30% compared to standard couplings.
- Improved Power Transmission: High torsional rigidity and low backlash ensure accurate speed and torque transfer, reducing energy loss.
- Simplified Installation: Flange-type connection eliminates the need for special tools; alignment is straightforward with pre-drilled holes.
- Adaptability: Customizable length and bore accommodate different roll arrangements and space constraints.
- Cost-Effective: Longer service life and reduced replacement frequency lower total cost of ownership.
With 6 years of professional manufacturing experience and a factory certified under ISO9001:2015, Hebei Speed Torque ensures consistent quality control from raw material selection to final assembly. Each coupling undergoes rigorous testing—including dimensional inspection, hardness verification, and torque validation—before shipment. Our products are exported to over 15 countries and regions, generating annual export revenue of US$5-10 million. We ship through the ports of Shanghai, Tianjin, and Qingdao, with lead times typically 15–25 working days.
Why choose our SWC Universal Joint Coupling?
• Reliable performance in the most demanding rolling mill environments.
• Flexible customization to match your exact specifications.
• Prompt support from our engineering team for technical inquiries.
• Competitive pricing without compromising on quality.
• Proven track record with satisfied customers worldwide.
Contact us today to discuss your coupling requirements or request a quote. Let Hebei Speed Torque be your trusted partner for robust transmission solutions!
Frequently Asked Questions (FAQ)
1. What materials are used in the hardened cross shaft?
The cross shaft is made from 40Cr or 42CrMo alloy steel, induction-hardened to HRC 58–62 for maximum wear resistance.
2. Can this coupling be used in reversing rolling mill applications?
Yes, the SWC universal joint design handles bidirectional rotation and shock loads effectively, making it suitable for reversing mills.
3. What is the typical service life under normal operating conditions?
With proper lubrication and alignment, the coupling can last 3–5 years or more in continuous rolling mill service, depending on load and maintenance.
4. Do you offer custom flange dimensions or bolt patterns?
Absolutely. We can customize flange diameter, bolt hole positions, and thickness according to your drawing or existing equipment.
5. How often should the coupling be lubricated?
We recommend greasing every 200–300 operating hours or as indicated by the operating environment. Grease fittings are standard on all models.
6. Is the coupling supplied with a warranty?
Yes, we provide a 12-month warranty against manufacturing defects from the date of shipment. Extended warranties are available upon request.
7. What is the maximum allowable angular misalignment?
The SWC series allows up to 15° of angular misalignment under normal torque, reducing to 10°–12° at peak torque. Larger angles can be accommodated with special designs.
8. How do I select the right model for my rolling mill?
Please provide your required torque, shaft speed, flange dimensions, and space constraints. Our engineering team will recommend the optimal model and can perform a life calculation for your application.
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