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Help CenterPrecision Ground Gear Shaft With Surface Nitriding Treatment Tolerance ±0.002mm
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Welcome to Henan San Kuang Machinery Technology Co., Ltd. – a trusted manufacturer of precision power transmission components since 2014. Our Precision Ground Gear Shaft with Surface Nitriding Treatment is engineered to deliver exceptional dimensional accuracy and wear resistance, featuring a tight tolerance of ±0.002mm. Combining advanced grinding technology with controlled nitriding processes, this gear shaft ensures reliable performance in demanding industrial applications. Backed by a 10,000-30,000 m² factory and an experienced team of 51-100 employees, we provide customized solutions meeting international quality standards.
Product Features and Technical Specifications
High Precision Ground Finish: Achieved through CNC grinding machines, the gear shaft maintains a roundness and cylindricity within ±0.002mm, reducing vibration and noise during operation.
Surface Nitriding Treatment: The nitrided layer (0.3-0.8mm depth) significantly increases surface hardness (up to HRC 65) while preserving a tough core, enhancing fatigue strength and corrosion resistance.
Customizable Dimensions: Available in various lengths, diameters, and tooth profiles (spur, helical, spline) to match your specific gearbox or transmission design.
Superior Material Quality: Manufactured from high-grade alloy steels such as 40Cr, 20CrMnTi, or 42CrMo, with optional through-hardening or induction hardening for additional core strength.
Rigorous Quality Control: Every shaft undergoes 100% dimensional inspection using CMM, hardness testing, and surface roughness measurement to ensure compliance with ±0.002mm tolerance.
| Parameter | Value |
|---|---|
| Dimensional Tolerance | ±0.002mm |
| Surface Hardness (after nitriding) | HRC 50-65 |
| Case Depth (nitriding) | 0.3-0.8 mm (customizable) |
| Surface Roughness (Ra) | ≤ 0.4 μm |
| Material Options | 40Cr, 20CrMnTi, 42CrMo, 4140, or as per customer |
| Available Length | 100 – 1500 mm |
| Available Diameter | 10 – 200 mm |
| Tooth Profile | Spur, helical, spline, custom |
Benefits for Your Application
The combination of precision grinding and surface nitriding provides longer service life and reduced maintenance costs for gearboxes, reducers, and transmission systems. The ±0.002mm tolerance ensures smooth meshing with mating gears, minimizing backlash and improving power transmission efficiency. Nitriding also offers excellent anti-galling properties, making the shaft suitable for high-load, high-speed environments. Additionally, the wear-resistant surface reduces the need for frequent lubrication, contributing to overall system reliability.
Why Choose Henan San Kuang Machinery?
Our company has been delivering high-quality machined components since 2014, with an annual export value of US$2.5-5 million. We serve customers across North America, Europe, Asia, and Africa, providing customized solutions from prototype to mass production. Our factory spans 10,000-30,000 square meters, equipped with advanced CNC grinding machines, nitriding furnaces, and full inspection facilities. We are proud to hold certifications including ISO9001, ISO14001, and OHSAS18001, reflecting our commitment to quality, environmental management, and occupational health. Each Precision Ground Gear Shaft undergoes strict traceability and testing before shipment, ensuring you receive a product that meets the highest standards. We invite you to contact us for a quote or technical consultation – our team is ready to support your project with reliable engineering and timely delivery.
Frequently Asked Questions (FAQ)
What materials are available for the gear shaft?
We commonly use 40Cr, 20CrMnTi, 42CrMo, and 4140 alloy steel. Other materials can be customized upon request.How is the ±0.002mm tolerance achieved?
We use high-precision CNC cylindrical grinding machines and in-process gauging to maintain tight tolerances. Each shaft is inspected with a coordinate measuring machine (CMM).What is the typical nitriding depth and hardness?
The nitrided case depth ranges from 0.3 to 0.8 mm, with surface hardness typically HRC 50-65. The depth can be adjusted to meet your application requirements.Do you offer non-standard sizes or custom tooth profiles?
Yes, we specialize in custom manufacturing. Please provide your drawings or specifications for a tailored solution.What is the lead time for a typical order?
For standard designs, lead time is 15-30 days after order confirmation. Complex custom parts may require longer – please consult our sales team.How do you ensure the quality of the nitriding layer?
We control the nitriding process parameters (temperature, time, gas flow) and perform layer thickness measurement, hardness testing, and metallographic analysis on each batch.What packaging is used for export shipments?
We use wooden crates or steel pallets with rust-proof coating and shock-absorbing materials to prevent damage during transit. Export packaging complies with international standards.Can you provide samples for testing?
Yes, sample orders are welcome. We can produce a small quantity for your evaluation, and sample costs are negotiable.
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