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Help CenterCorrosion Resistant Gear Coupling & Pin Bush Coupling Complete Coupling Solutions
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Henan San Kuang Machinery Technology Co., Ltd., established in 2014 and located in Luoyang, Henan, China, is a professional manufacturer specializing in high-quality power transmission components. With a factory size of 10,000–30,000 square meters, an annual export value between US$2.5 million and US$5 million, and a dedicated team of 51–100 employees, we bring extensive experience to every product we deliver. Our Corrosion Resistant Gear Coupling & Pin Bush Coupling Complete Coupling Solutions are engineered to meet the toughest industrial demands, offering exceptional durability, reliability, and performance in harsh environments.
These couplings are designed to handle high torque loads while compensating for shaft misalignment, reducing vibration, and extending equipment life. The corrosion-resistant feature makes them ideal for industries such as chemical processing, marine, wastewater treatment, and food production, where exposure to moisture, chemicals, or saltwater is common. We combine advanced manufacturing techniques with rigorous quality control to ensure each coupling delivers consistent, trouble-free operation.
Key Product Features
Corrosion Resistance: Made from stainless steel or coated with specialized anti-corrosion layers (such as nickel plating, epoxy, or zinc-nickel alloy) to withstand aggressive media.
High Torque Capacity: Gear teeth and pin bush designs optimize load distribution, allowing torque transmission up to 50,000 N·m.
Misalignment Compensation: Accommodates angular, parallel, and axial misalignment, protecting connected equipment from premature wear.
Easy Maintenance: Pin bush couplings feature replaceable bushes; gear couplings have simple lubrication points for extended service intervals.
Compact Design: Space-saving construction with high power-to-weight ratio, suitable for confined installations.
Customizable Options: Available in various bore sizes, keyways, and special coatings to match your specific application requirements.
Technical Specifications (Typical Range)
| Model Series | Nominal Torque (N·m) | Bore Diameter (mm) | Max Speed (rpm) |
| GC Series (Gear) | 500 – 20,000 | 20 – 120 | 4,000 |
| PB Series (Pin Bush) | 1,000 – 50,000 | 25 – 200 | 3,600 |
| CR Series (Corrosion Resistant) | 800 – 30,000 | 30 – 150 | 4,200 |
Note: Exact specifications vary by model. Contact our engineering team for a custom solution.
Benefits to Your Business
Reduced Downtime: Robust construction and corrosion resistance minimize failures in aggressive environments.
Lower Total Cost of Ownership: Longer service life and fewer replacements save money over time.
Improved Efficiency: Smooth torque transmission and misalignment compensation reduce energy losses.
Wide Application Compatibility: Suitable for pumps, compressors, fans, conveyors, mixers, and more.
Global Standards: Manufactured in compliance with ISO9001, ISO14000, and other management systems, ensuring consistent quality.
Trust & Reliability
Henan San Kuang Machinery Technology Co., Ltd. has been serving global markets since 2014. With an annual export value of US$2.5 to US$5 million, our products are shipped to North America, South America, Europe, Africa, Oceania, the Middle East, and Southeast Asia via major ports including Shanghai, Lianyungang, Qingdao, and Tianjin. We hold multiple certifications such as ISO9001, ISO14000, OHSAS18001, SA8000, TL9000, QS9000, TS16969 and many others, reflecting our commitment to quality, safety, and environmental responsibility. Our 10,000–30,000 m² factory is equipped with advanced CNC machines and testing facilities to ensure every coupling meets the highest standards.
We offer complete coupling solutions — from design consultation and material selection to prototyping and mass production. Whether you need a standard pin bush coupling or a custom corrosion-resistant gear coupling, our experienced engineers are ready to support your project. Contact us today to discuss your requirements and receive a competitive quote.
Frequently Asked Questions (FAQ)
1. What materials are used for the corrosion-resistant coating?
We offer several options including stainless steel (304/316), nickel-plated alloy steel, epoxy coating, and zinc-nickel alloy. The choice depends on the chemical environment and temperature.
2. Can these couplings be used in high-temperature applications?
Yes, our couplings can operate in temperatures up to 200°C (392°F) with standard materials, and up to 350°C (662°F) with special heat-resistant coatings or materials. Please specify your temperature range when ordering.
3. How often do I need to lubricate the gear coupling?
For standard gear couplings, lubrication should be performed every 3 to 6 months depending on operating speed and load. Our couplings are designed with easy-access grease fittings. Some models can be supplied with permanent lubrication (grease-packed and sealed) upon request.
4. What is the lead time for custom couplings?
Typically 15–30 working days for custom dimensions, coatings, or special bore/keyway configurations. Standard models can be shipped within 7–10 working days.
5. Do you provide technical drawings or 3D models?
Yes, we can supply 2D CAD drawings and 3D models (STEP/IGES) upon request to assist with integration into your equipment.
6. What is the warranty period?
Our couplings come with a standard 12-month warranty against manufacturing defects. Extended warranties can be negotiated for large orders or ongoing projects.
7. How do I select the right coupling size for my application?
We recommend providing the following information: motor power (kW), operating speed (rpm), shaft diameters, type of misalignment, and environmental conditions. Our engineering team can calculate the required torque rating and recommend the appropriate model.
8. Can you supply couplings that meet specific industry standards (e.g., API, AGMA)?
Absolutely. We can design and manufacture couplings to meet international standards such as AGMA 9000, API 610, or ISO 14691. Please share your requirements, and we will confirm compliance.
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