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Help CenterCustom Gear Shaft 304 Stainless Steel, Surface Nitriding, 50-55 HRC, CNC Machined, 0.005mm Runout
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As a leading manufacturer based in Henan, China, Henan San Kuang Machinery Technology Co., Ltd. with over 10 years of experience (since 2014) and a factory spanning 10,000-30,000 square meters, proudly presents our Custom Gear Shaft 304 Stainless Steel. This precision component is designed for demanding applications where corrosion resistance, surface hardness, and dimensional accuracy are critical. Our gear shafts undergo a proprietary surface nitriding process to achieve a hardness of 50-55 HRC, combined with CNC machining to maintain a runout tolerance of just 0.005mm, ensuring reliable performance in high-torque transmission systems.
We understand that every gear shaft requirement is unique. That's why we offer full customization in length, diameter, teeth profile, and additional features. Backed by a team of 51-100 skilled employees and certifications including ISO9001, ISO14001, OHSAS18001, and numerous others, we guarantee consistent quality from prototype to mass production. Our products are exported to major markets worldwide, including North America, Europe, Southeast Asia, and more, shipped seamlessly from ports like Shanghai, Qingdao, and Tianjin.
Key Features & Technical Specifications
- Material: 304 Stainless Steel – excellent corrosion resistance, suitable for food processing, marine, and chemical environments.
- Surface Nitriding: Increases surface hardness to 50-55 HRC, significantly improving wear resistance and fatigue life.
- CNC Precision Machining: Achieves tight tolerances of ±0.005mm for runout, ensuring smooth gear meshing and reduced vibration.
- Customizable Dimensions: Length, outer diameter, inner bore, keyway, and tooth profile can be tailored to your specifications.
- Heat Treatment Options: Additional hardening or tempering treatments available upon request for enhanced core strength.
- Quality Control: 100% inspection using CMM, hardness testers, and runout gauges to ensure compliance with your drawing requirements.
Technical Parameters (Typical)
| Parameter | Value |
|---|---|
| Material Grade | 304 Stainless Steel (UNS S30400) |
| Surface Hardness | 50-55 HRC (nitrided layer depth 0.2-0.5mm) |
| Runout (TIR) | ≤ 0.005mm |
| Machining Tolerance | IT6–IT7 (typical) |
| Surface Roughness | Ra ≤ 0.8 μm |
| Customizable Length | 50 mm – 2000 mm |
| Max OD | Up to 300 mm |
Why Choose Our Custom Gear Shaft?
- Superior Corrosion Resistance: 304 stainless steel ensures long service life in harsh environments, reducing replacement costs.
- Enhanced Wear Life: The nitriding process creates a hard, fatigue-resistant surface, ideal for high-load applications.
- Exceptional Precision: 0.005mm runout minimizes noise and vibration, improving overall system efficiency.
- Full Customization: We work directly with your engineering team to match exact dimensional and performance requirements.
- Reliable Quality Assurance: Our factory is certified under ISO9001, ISO14001, OHSAS18001, and many other international standards, ensuring consistent quality.
- Competitive Lead Times: With a modern factory and efficient production processes, we deliver prototypes in 7-15 days and mass orders in 30-45 days.
Trust & Credibility: Since our establishment in 2014, Henan San Kuang Machinery Technology Co., Ltd. has served clients across 5 continents, with an annual export value ranging from US$2.5 million to US$5 million. Our products are trusted by industries in North America, Europe, South America, Africa, and Oceania. We hold multiple certifications including ISO9001, ISO14001, OHSAS18001, SA8000, TL9000, TS16949, and more, reflecting our commitment to quality, environment, and social responsibility. Every gear shaft is inspected before shipment, and we offer a 12-month warranty against manufacturing defects. Contact us today for a quote or technical consultation – your custom gear shaft solution is just a message away.
Frequently Asked Questions (FAQ)
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Q: What is the minimum order quantity (MOQ) for custom gear shafts?
A: Our MOQ starts at 1 piece for prototype evaluation. For regular production, typical MOQ is 10-50 pieces depending on complexity. We are flexible for small batches. -
Q: Can you provide drawings or design assistance?
A: Yes, we can work from your 2D/3D drawings (PDF, STEP, IGES) or provide design suggestions based on your application requirements. Our engineering team is ready to assist. -
Q: How long does the nitriding process take?
A: The nitriding cycle typically takes 8-24 hours, depending on the desired case depth. We can adjust the process to meet hardness and depth specifications. -
Q: What is the typical lead time for a custom order?
A: For prototypes, 7-15 working days after drawing approval. For mass production, 30-45 working days, subject to quantity and complexity. Expedited service is available. -
Q: Do you test the hardness and runout on every piece?
A: Absolutely. We perform 100% hardness testing (Rockwell) and runout measurement on each gear shaft. Inspection reports are provided upon request. -
Q: Can the gear shaft be supplied with a coating or additional surface treatment?
A: Yes, we offer additional options such as black oxide, DLC coating, or PTFE coating for enhanced lubrication or corrosion protection. Let us know your requirements. -
Q: What is your quality guarantee?
A: We offer a 12-month warranty against manufacturing defects. If any issue arises due to our process, we will replace or repair at no cost. Our quality systems are audited under ISO9001 and other standards. -
Q: How do you ship the products?
A: We ship via sea, air, or express (DHL/FedEx) from our main ports: Shanghai, Lianyungang, Qingdao, or Tianjin. We can also arrange door-to-door delivery for small orders.
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