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Help CenterSWC Series Cardan Shaft Universal Coupling With Flange for Mill Universal Coupling
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Welcome to Hebei Speed Torque Transmission Technology Co., Ltd. We are a dedicated manufacturer of power transmission components, and we are proud to introduce our premium SWC Series Cardan Shaft Universal Coupling with Flange, specifically engineered for demanding mill applications. With over 7 years of expertise and a factory spanning 3,000-5,000 square meters, we combine advanced machining capabilities with rigorous quality control to deliver couplings that ensure reliable torque transmission, minimal backlash, and extended service life. Our SWC series is the ideal solution for steel mills, rolling mills, and other heavy industrial environments where strength and precision are critical.
Product Overview & Core Features
The SWC series universal coupling is a flange-type cardan shaft designed to connect two rotating shafts at an angle while transmitting high torque. It is widely used in mill drives, auxiliary machinery, and heavy-duty transmission systems. Below are the key technical parameters:
| Parameter | Specification |
|---|---|
| Shaft Diameter Range | 50 mm – 600 mm (custom sizes available) |
| Nominal Torque | 5 kN·m – 500 kN·m |
| Maximum Operating Angle | ≤ 25° (standard), up to 35° on request |
| Length Range | 500 mm – 6000 mm |
| Material | High-strength alloy steel (40Cr or equivalent) |
| Flange Connection | Standard bolt pattern or customized |
| Lubrication | Grease-lubricated (sealed bearings) |
Key Advantages & Benefits for Your Application
High Torque Density: The compact SWC design delivers maximum torque for a given size, reducing the overall footprint of your mill drive system.
Enhanced Durability: Forged alloy steel construction with heat treatment ensures resistance to fatigue and wear even under continuous heavy loading.
Flexible Installation: Flange connections allow quick mounting and dismounting, minimizing downtime during maintenance or replacement.
Smooth Operation: Precision ground cross bearings and hardened raceways provide low vibration and noise, protecting downstream equipment.
Customizable Length & Bore: We offer tailor-made solutions to match your exact shaft spacing and dimensional requirements.
Sealed Joint Design: Integrated dust seals and grease nipples keep bearings clean and well-lubricated, extending service intervals.
Wide Operating Angle: Accommodates angular misalignment up to 25° standard, with optional higher angles for special applications.
Our SWC series couplings are particularly suited for rolling mill main drives, pinion stands, continuous casting machines, and other steel processing equipment. They have been deployed in numerous heavy industries across North America, South America, Europe, and Asia, earning praise for their reliability.
Technical Superiority in Detail
Each SWC cardan shaft undergoes rigorous testing including dynamic balancing (G6.3 or higher) and torque verification. The cross assembly uses needle roller bearings with high load capacity, and the flange face is machined to strict tolerances (ISO 2768-f). For extreme environments, we offer optional coatings such as phosphating or zinc plating for corrosion resistance.
Material Standards: Alloy steel 40Cr (or 42CrMo for higher strength) with hardness HRC 38-42 on critical surfaces.
Balancing Quality: Dynamic balancing is performed per ISO 1940-1, achieving grade G6.3 or better.
Flange Options: Available in round or square flanges with bolt patterns conforming to DIN, ANSI, or custom drawings.
Safety Factor: Designed with a safety factor of 1.5-2.5 times nominal torque, ensuring reliable operation under peak loads.
Quality Control & Trusted Manufacturing
Hebei Speed Torque operates under a certified ISO9001 quality management system. Our in-house laboratory conducts chemical analysis, tensile testing, and non-destructive testing (UT/MT) on raw materials and finished products. Every coupling comes with a test certificate and is traceable by batch number.
With an annual export value exceeding US$5 million, we have built a global network of satisfied customers. Our experienced engineering team provides full technical support, from selection advice to after-sales service. We ship from major Chinese ports (Shanghai, Tianjin, Qingdao) with reliable freight options.
Choose our SWC Series Cardan Shaft Universal Coupling for unmatched performance in mill applications. Contact us today for a quote or technical consultation – we are ready to deliver the perfect power transmission solution for your machinery.
Frequently Asked Questions
Q: What is the maximum operating angle of the SWC series?
A: The standard design allows up to 25° continuous operation. For higher angles (up to 35°), special bearings and modifications are available upon request.Q: Can I order non-standard flange dimensions?
A: Yes, we offer fully customizable flanges. Please provide your bolt circle diameter, number of bolts, and flange thickness in your inquiry.Q: What lubrication is required?
A: The coupling is pre-greased with lithium-based grease. Periodic regreasing every 500 hours of operation or as indicated by the maintenance manual is recommended.Q: Do you provide dynamic balancing?
A: Yes, all SWC couplings are dynamically balanced before shipment. Standard balance grade is G6.3, but higher grades (G2.5) are available for high-speed applications.Q: What is the typical lead time?
A: For standard sizes, lead time is 15-25 working days. Custom designs may require 25-40 working days depending on complexity.Q: How is the coupling assembled to the mill shaft?
A: The flange is bolted directly to the driven equipment; the opposite end can be fitted with a keyed bore, spline, or taper lock bushing as per your specification.Q: What is the warranty period?
A: We offer a 12-month warranty from the date of shipment against manufacturing defects. Extended warranty options are negotiable.Q: Can you supply a complete drive shaft assembly including intermediate shafts?
A: Absolutely. We can design and manufacture multi-section cardan shafts with intermediate bearings for long spans.
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