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Help CenterGear Coupling With 1-Year Factory Warranty, Mill Test Report Provided, Rigid Quality Control
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Henan San Kuang Machinery Technology Co., Ltd. has been a trusted manufacturer of power transmission components since 2014. Our gear couplings are engineered for heavy-duty industrial applications, offering high torque transmission and reliable misalignment compensation. Every unit comes with a 1-year factory warranty and a Mill Test Report, demonstrating our commitment to quality and transparency. With rigid quality control at every production stage, you can depend on our couplings for long service life and minimal downtime.
Product Features & Benefits
- High Torque Capacity: Designed to handle heavy loads in steel mills, mining, and cement industries.
- Precision Machining: CNC-cut gear teeth ensure smooth engagement and reduced vibration.
- Heat-Treated Alloy Steel: Enhanced durability and wear resistance for extended service life.
- Flexible Design: Accommodates angular, parallel, and axial misalignments, protecting connected equipment.
- Mill Test Report Included: Verifies material composition and mechanical properties for each batch.
- Rigid Quality Control: 100% inspection of dimensions, hardness, and balance before shipping.
- Easy Installation: Standard hub and flange design with keyways and set screws (optional).
- Customizable: Bores, keyways, and materials can be tailored to your specific requirements.
Technical Specifications
| Parameter | Value |
|---|---|
| Bore Diameter Range | 20 mm – 200 mm (custom up to 400 mm) |
| Nominal Torque | 500 – 50,000 Nm |
| Maximum Speed | Up to 4,000 rpm (depending on size) |
| Misalignment Capacity | Angular: ±1.5° / Parallel: ±0.5 mm / Axial: ±2 mm |
| Material | Alloy steel (AISI 4140/4340) or stainless steel (304/316) |
| Hardness | Teeth: HRC 48–55 (quenched & tempered) |
| Balance Grade | ISO 1940 G6.3 (higher available on request) |
| Warranty | 1 year (full replacement for manufacturing defects) |
Quality Assurance & Factory Support
At Henan San Kuang, we implement a rigorous quality management system certified under ISO9001, ISO14001, and OHSAS18001. Every gear coupling undergoes dimensional inspection using CMM, hardness testing, and dynamic balancing. The Mill Test Report provides traceability of raw materials from supplier to finished product. Our factory spans 10,000–30,000 square meters and employs 51–100 skilled workers, ensuring consistent production capacity and on-time delivery.
Trusted by global clients in North America, South America, Europe, Southeast Asia, and Africa, we have maintained an annual export value of US$2.5–5 million. Our products are shipped from major Chinese ports (Shanghai, Qingdao, Lianyungang, Tianjin) to destinations worldwide. With a dedicated after-sales team, we respond to inquiries within 24 hours and provide technical support for installation and troubleshooting.
Choose our gear coupling for a reliable, cost-effective solution backed by a 1-year warranty and full material documentation. Contact us today for a quote or custom engineering assistance.
Frequently Asked Questions
- What is the typical lead time for a gear coupling? Standard sizes ship within 15–25 working days; custom orders take 20–35 days depending on complexity.
- Can you provide a Mill Test Report for every batch? Yes, we include a Mill Test Report for each production batch as standard documentation.
- What types of misalignment can this coupling handle? It compensates for angular (up to 1.5°), parallel (up to 0.5 mm), and axial (up to ±2 mm) misalignments simultaneously.
- Do you offer different bore/keyway options? Absolutely. Bores and keyways are customizable to fit your shafts. Please provide shaft dimensions for a tailored solution.
- Is the coupling suitable for high-speed applications? Yes, our balanced design allows operation up to 4,000 rpm. For higher speeds, we can refine balancing to G2.5 grade.
- What lubricant do you recommend? We suggest using EP gear grease (NLGI #1 or #2) for long-term operation. Self-lubricating options are available for certain models.
- How does the 1-year warranty work? If a manufacturing defect is found within 1 year from shipment, we provide a free replacement or repair. Shipping costs are covered by us for verified defects.
- Can I get samples before bulk order? Yes, sample orders are welcome. A sample fee applies, refundable for bulk orders exceeding 50 units.
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