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Help CenterHigh Load Pin Bush Coupling Elastic Sleeve Structure Long Service Life For Conveyor
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Henan San Kuang Machinery Technology Co., Ltd. is a trusted manufacturer of heavy-duty power transmission components, established in 2014 with a factory spanning 10,000-30,000 square meters. Our High Load Pin Bush Coupling with Elastic Sleeve Structure is engineered specifically for conveyor systems that demand reliable torque transmission under extreme loads. Combining a robust pin bush design with a flexible elastic sleeve, this coupling delivers exceptional vibration damping, misalignment compensation, and a long service life—helping you reduce downtime and maintenance costs.
Built for durability, this coupling is crafted from high-strength steel hubs and premium polyurethane elastomeric sleeves. It supports high torque capacities and accommodates axial, radial, and angular misalignments, making it ideal for belt conveyors, bucket elevators, screw conveyors, and other bulk material handling equipment. Our advanced manufacturing processes ensure consistent quality, and every unit is tested before shipment from Port of Shanghai, Lianyungang, Qingdao, or Tianjin.
Key Features & Benefits
- High Load Capacity: The pin bush design distributes load evenly, handling peak torques up to 5000 Nm (customizable per request).
- Elastic Sleeve Damping: Reduces vibration and shock loads, protecting connected equipment (gearboxes, motors, rollers).
- Misalignment Compensation: Allows up to 1° angular and 2 mm radial misalignment, extending bearing and seal life.
- Long Service Life: High-wear-resistant elastomer sleeves last over 5 years in normal conveyor environments; replacement sleeves are easily swapped.
- Easy Maintenance: Simple bolt-on design requires no lubrication; visual inspection through the open structure.
- Customizable Options: Bore sizes, keyways, sleeve hardness (Shore A), and colors available per your specifications.
Technical Specifications
| Parameter | Value (Customizable) |
| Nominal Torque Range | 500 – 5000 Nm |
| Bore Diameter | 20 – 150 mm |
| Max Speed | Up to 3000 rpm |
| Sleeve Material | Polyurethane (Shore A 80-95) |
| Hub Material | 45# Steel or 40Cr (heat treated) |
| Operating Temperature | -20°C to +80°C |
| Color | Blue, Black, or as requested |
All specifications are customizable to match your conveyor’s exact requirements. Contact our engineering team for a tailored solution.
Why Choose Henan San Kuang?
With 51-100 skilled employees and an annual export value of US$2.5-5 million, we serve markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. Our factory holds multiple certifications including ISO9001, ISO14000, OHSAS18001, and TS16969 (upon request), ensuring strict quality control from raw material to finished product. We provide OEM/ODM services and a 12-month warranty against manufacturing defects. All couplings are packed in strong wooden cases for sea freight, and we offer free technical consultation for installation and maintenance.
Invest in a coupling that keeps your conveyor running smoothly for years. Contact Henan San Kuang today for a quote or sample. Our team will respond within 24 hours with product drawings and a competitive price.
Frequently Asked Questions
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Q: What is the maximum torque this coupling can handle?
A: The standard range is 500-5000 Nm, but we can design for higher loads according to your application. Please provide your motor power and service factor. -
Q: Can I use this coupling for high-speed conveyors?
A: Yes, it operates up to 3000 rpm. For speeds above this, contact us for a dynamic balance option. -
Q: How often does the elastic sleeve need replacement?
A: Under normal operating conditions (temperature, load, alignment), the sleeve lasts 3-5 years. We recommend annual inspection for cracks or wear. -
Q: Do you offer bore sizes other than the listed range?
A: Absolutely. We can machine custom bore diameters, keyways, and tolerances. Minimum order quantity may apply for non-standard sizes. -
Q: What is the delivery lead time?
A: Standard sizes (up to 100 units) ship within 15-20 working days. Custom orders typically take 25-30 working days. Stock items are available upon inquiry. -
Q: Can you provide a sample for testing?
A: Yes, samples are available with full cost refunded for bulk orders. Just pay the express shipping fee. -
Q: Does the coupling require lubrication?
A: No, it is maintenance-free. The elastic sleeve acts as a dampener and does not need grease. However, keep bolts tight periodically. -
Q: Is the coupling suitable for food-grade conveyor applications?
A: We can supply sleeves made of FDA-approved polyurethane on request. Please specify your industry requirements.
For more technical data or to place an order, email sales@henansankuang.com or call +86-379-xxxxxxx.
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