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Hebei Speed Torque Transmission Technology Co., Ltd. is a professional manufacturer of power transmission components, established in 2017 with a factory area of 3,000-5,000 square meters. Our Universal Coupling Double Cardan Shaft Coupling is engineered for reliable torque transmission in industrial gear reducer systems. Designed to accommodate angular misalignment and axial movement, this coupling offers high torsional rigidity and long service life. Backed by our ISO9001-certified quality management system, each unit is precision-machined and tested to ensure consistent performance in demanding applications.
The double cardan design provides constant velocity characteristics, reducing vibration and wear on connected equipment. Available in various bore sizes and lengths, our coupling can be customized to meet specific OEM requirements. With annual export value exceeding US$5 million and a team of 101-200 skilled employees, we serve markets across North America, South America, Europe, Asia, Africa, and Oceania.
Key Features & Technical Specifications
Double Cardan Design: Two universal joints connected by a center shaft ensure constant velocity and smooth torque transfer even at high angles.
High Torque Capacity: Forged alloy steel construction handles heavy loads up to 5000 Nm (varies by size).
Flexible Mounting: Flanged or splined hubs available; keyways and set screws included.
Low Maintenance: Sealed needle bearings and grease lubrication reduce downtime.
Wide Operating Angle: Up to 45° per joint allows for installation in tight spaces.
Customizable Dimensions: Bore diameter, overall length, and bore depth can be tailored to your application.
Surface Treatment Options: Black oxide, phosphating, or zinc plating for corrosion resistance.
| Parameter | Specification |
|---|---|
| Material | 40Cr alloy steel / 304 stainless steel (optional) |
| Bore Diameter | 10 mm – 100 mm (customizable) |
| Overall Length | 100 mm – 500 mm (customizable) |
| Max Torque | Up to 5000 N·m (size dependent) |
| Max Speed | 3000 RPM (depending on size and balance grade) |
| Operating Angle | ≤45° per joint (up to 90° total) |
| Lubrication | Pre-greased; lithium-based grease recommended |
| Balance Quality | G6.3 or G2.5 per ISO 1940 (on request) |
Benefits for Your Application
Reduced Vibration: The double cardan design minimizes cyclic torque variations, protecting gear reducer bearings and gears.
Extended Equipment Life: By accommodating misalignment, the coupling reduces stress on shafts and seals.
Easy Installation: Pre-assembled and balanced units reduce on-site labor.
Cost-Effective: High durability and low maintenance lower total cost of ownership.
Global Compatibility: Metric and imperial bore sizes available; adaptable to NEMA, IEC, or custom shafts.
Trust & Reliability from Hebei Speed Torque
Since 2017, Hebei Speed Torque Transmission Technology Co., Ltd. has grown to become a reliable partner for industrial transmission components. Our 3,000-5,000 m² factory houses advanced CNC machining centers, heat treatment lines, and dynamic balancing equipment. With 101-200 skilled employees and annual exports of US$5-10 million, we fulfill orders for clients in over 15 countries, including the Americas, Europe, and Asia-Pacific.
Our ISO9001:2015 certification ensures consistent quality from raw material input to final inspection. Each universal coupling is tested for dimensions, hardness, and runout before packing. We offer sample testing and custom designs for OEM projects. Shipments are made via Port of Shanghai, Tianjin, or Qingdao with reliable logistics partners.
Contact our sales team today for a quotation or technical drawing. With our competitive pricing, short lead times, and dedicated after-sales support, you can trust Hebei Speed Torque to power your industrial transmissions.
Frequently Asked Questions
Q1: What is the maximum angular misalignment this coupling can handle?
A: Each universal joint can operate up to 45°, giving a combined total of up to 90°. However, for long service life, we recommend limiting to 30° per joint in continuous operation.
Q2: Can I get a coupling with a splined bore instead of a keyway?
A: Yes, we offer splined hubs per DIN, SAE, or custom standards. Please provide your spline specification when inquiring.
Q3: Are these couplings suitable for high-speed applications?
A: Yes, they can be dynamically balanced to G2.5 for speeds up to 3000 RPM. Higher speeds may require special design – contact us for details.
Q4: What lubrication is required?
A: The coupling is pre-greased with lithium-based grease and sealed. Re-greasing intervals depend on operating conditions; typically every 500-1000 hours.
Q5: Do you provide CAD drawings for integration?
A: Yes, we supply 2D and 3D drawings in STEP, IGES, or PDF upon request. Our engineers can also assist with selection.
Q6: What is the typical lead time?
A: For standard sizes, 7-15 working days. Custom orders typically 20-30 working days depending on complexity. We have rush service for urgent needs.
Q7: How do you ensure product quality?
A: We follow ISO9001 procedures: incoming material inspection, in-process checks, and final dimensional & performance testing. Each coupling comes with a test report.
Q8: Can I order a sample before bulk purchase?
A: Absolutely. Sample orders are welcome. We can produce a prototype based on your specification for evaluation. Shipping cost and sample fee apply, deductible from mass production.
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