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Help CenterHigh Torque Universal Coupling Easy Installation Flexible Shaft Coupling For Mining Machinery
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Hebei Speed Torque Transmission Technology Co., Ltd., established in 2017, is a professional manufacturer specializing in power transmission components. Our factory spans 3,000-5,000 square meters and is equipped with advanced machining centers and heat treatment facilities. With an annual export value of US$5 million to US$10 million, we serve clients across North America, South America, Europe, Africa, Oceania, and Asia. The High Torque Universal Coupling is one of our flagship products, designed specifically for mining machinery where reliability and easy installation are critical. This flexible shaft coupling delivers superior torque transmission while compensating for angular, parallel, and axial misalignments, reducing downtime and maintenance costs.
Product Features & Technical Specifications
Our high-torque universal coupling is engineered to withstand the harshest mining environments. Here are its key characteristics:
- High Torque Capacity – Uses advanced alloy steel with induction-hardened raceways, delivering torque ratings up to 500,000 Nm (customizable based on bore size and length).
- Flexible Design – Allows up to 15° angular misalignment and ±5 mm axial movement, effectively absorbing shocks and vibrations.
- Easy Installation – Pre-lubricated, sealed design with bolt-on flanges enables quick mounting without special tools.
- Durable Construction – Made from 40Cr or 42CrMo alloy steel (optional stainless steel), with phosphating or black oxide finish for corrosion resistance.
- Low Maintenance – Lubricated for life, eliminating the need for regular greasing in most applications.
- Compact & Lightweight – Optimized cross-section reduces inertia and saves space on conveyors, crushers, and drills.
Typical Specifications (Customizable)
| Model | Rated Torque (Nm) | Max. Speed (rpm) | Bore Range (mm) | Length (mm) | Weight (kg) |
|---|---|---|---|---|---|
| STUC-150 | 15,000 | 3,600 | 40–80 | 200 | 12 |
| STUC-300 | 30,000 | 2,800 | 60–120 | 250 | 22 |
| STUC-500 | 50,000 | 2,000 | 80–160 | 300 | 38 |
Note: All dimensions and ratings are customizable. Contact our engineering team for OEM requirements.
Benefits for Your Mining Operations
- Reduced Downtime – Flexible engagement absorbs shock loads, protecting expensive gearboxes and motors.
- Versatile Alignment Tolerance – Eliminates need for precision alignment, saving hours during installation.
- Extended Service Life – Induction-hardened bearing surfaces and sealed grease chambers endure heavy dust and water exposure.
- Easy Replacement – Standard bolt patterns match existing mining machinery, no modification required.
- Global Compatibility – Available with metric or inch bores, keyways, splines, and flanges per international standards.
Why Choose Hebei Speed Torque Transmission?
With 101–200 skilled employees, a 3,000–5,000 m² factory, and an annual export value of US$5–10 million, we have the capacity to deliver large orders on time. Our products are shipped from Shanghai, Tianjin, or Qingdao ports to customers across North America, Europe, Africa, Oceania, and Asia. We hold ISO9001 certification for quality management, ensuring consistent performance. Each coupling undergoes 100% dimensional and hardness testing before dispatch. Our R&D team can provide custom bore sizes, special coatings, or non-standard lengths within short lead times. Whether you need a single replacement unit or a bulk order for mining equipment, we are your reliable partner. Contact us today for a quote or technical drawing!
Frequently Asked Questions
-
Q: What is the maximum torque your coupling can handle?
A: Our standard models range from 15,000 Nm to 50,000 Nm, and we can customize up to 500,000 Nm for heavy mining equipment. -
Q: How difficult is installation?
A: Very easy. The coupling comes pre-lubricated and sealed. Simply bolt the two flanges to your shafts and tighten. No special tools or alignment required. -
Q: Can it withstand water and mud?
A: Yes, the coupling is built with sealed covers and corrosion-resistant finishes, making it suitable for wet mining environments. -
Q: Do you offer custom bore sizes?
A: Absolutely. We can machine any bore diameter, keyway, or spline specification you need. Just provide your shaft dimensions. -
Q: What is the typical lead time?
A: For standard sizes, delivery is 15–30 days. Customized orders may take 30–45 days, depending on complexity and quantity. -
Q: How often does the coupling require maintenance?
A: Our design is maintenance-free for most applications. For extreme conditions, we recommend visual inspection every 6 months. -
Q: Is the coupling reversible?
A: Yes, the universal coupling operates symmetrically and can rotate in either direction at full torque. -
Q: Do you provide a warranty?
A: We offer a 12-month warranty against manufacturing defects. Extended warranties are available upon request.
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