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Help CenterRubber Flexible Torsional Steel Universal Shaft Coupling for Excavator and Heavy Machinery Parts
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Hebei Speed Torque Transmission Technology Co., Ltd. proudly introduces our Rubber Flexible Torsional Steel Universal Shaft Coupling, engineered specifically for excavators and heavy machinery. With a factory spanning 3,000-5,000 square meters and a team of 101-200 experienced professionals, we deliver high-performance couplings that absorb shock, compensate for misalignment, and ensure smooth power transmission. Our ISO9001-certified production process guarantees reliability and durability in the toughest working conditions.
This coupling combines a rubber elastomeric element with a high-strength steel hub, creating a flexible yet robust connection between drive shafts. It is designed to handle high torsional loads, reduce vibration, and protect connected equipment from damage caused by sudden torque spikes. Whether used in excavator track drives, hydraulic pumps, or other heavy-duty applications, our coupling offers extended service life and minimal maintenance.
Key Features & Technical Specifications
High Elasticity: Rubber insert absorbs torsional vibrations and dampens shock loads, protecting gears and bearings.
Universal Design: Accommodates angular, parallel, and axial misalignments, simplifying installation and reducing wear.
Durable Construction: Steel hubs are heat-treated for strength; rubber element resists oil, heat, and weathering.
Easy Maintenance: Drop-in rubber element can be replaced without disturbing the hubs or alignment.
Customizable Options: Available in various bore sizes, keyways, splines, and flange configurations.
| Parameter | Specification |
|---|---|
| Torque Range | 200 - 10,000 Nm (customizable) |
| Max Speed | 3,000 RPM (depending on size) |
| Operating Temperature | -40°C to +100°C |
| Misalignment Capacity | Angular: ≤2°; Parallel: ≤0.5mm; Axial: ≤2mm |
| Material | Hub: 45# Steel; Element: Natural Rubber / NBR |
| Certification | ISO9001 |
Benefits for Your Operation:
Reduced Downtime: Flexible element protects machinery from overloads, minimizing repairs and replacement costs.
Improved Efficiency: Low torsional stiffness reduces energy loss and heat generation.
Simple Alignment: Universal joint effect simplifies installation, even in tight spaces.
Long Service Life: Properly selected and maintained, our couplings outlast conventional rigid couplings in harsh environments.
Since 2017, Hebei Speed Torque Transmission Technology has exported millions of dollars worth of power transmission components globally. Our annual export value of US$5 Million - US$10 Million demonstrates our reliability and global acceptance. With major markets in North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East, we have built a reputation for quality and on-time delivery. All products are shipped from Port of Shanghai, Tianjin, or Qingdao.
Why Choose Us? – We are not just a supplier; we are a technical partner. Our engineers can assist in selecting the optimal coupling for your excavator or heavy machinery. We offer free samples for testing, custom designs at no extra charge, and 100% quality inspection before shipment. Contact us today to experience the difference that dedicated manufacturing and rigorous quality control can make.
Frequently Asked Questions
Q: What is the main advantage of a rubber flexible coupling over a rigid coupling?
A: It absorbs shocks, dampens vibration, and accommodates misalignment, protecting expensive components like motors and pumps from damage.Q: Can this coupling be used for other heavy machinery besides excavators?
A: Yes, it is suitable for crushers, conveyors, pumps, compressors, and any application requiring torsional flexibility.Q: What rubber material is used? Is it oil-resistant?
A: We use natural rubber or NBR (optional). NBR offers excellent oil and fuel resistance for demanding environments.Q: Do you provide custom bore sizes and keyways?
A: Absolutely. We can tailor the coupling to your shaft dimensions, including keyways, splines, and taper locks.Q: What is the typical lead time?
A: For standard sizes, lead time is 7-15 days. Custom orders typically take 15-25 days.Q: How do I select the right size for my excavator?
A: Provide us with shaft diameters, torque requirements, and space constraints. Our technical team will recommend the best model.Q: Is the rubber element replaceable without removing the hubs?
A: Yes, our design allows the rubber insert to be swapped out easily, minimizing downtime.Q: What certification does your company hold?
A: We are ISO9001 certified, ensuring consistent quality management throughout production.
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