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ANSI B92.1 Grade 6h Surface Nitriding Involute Spline Shaft Industrial Drive Parts
Product Spotlights
High-precision involute spline shaft conforming to ANSI B92.1 with Grade 6h tolerance ensures accurate fit and minimal backlash. Surface nitriding (HV 500–700) provides exceptional wear resistance and fatigue life. Made from premium alloy steel, customizable length and tooth configuration. Manufactured in an ISO-certified 30,000 m² factory with 10+ years of experience, suitable for heavy-duty industrial drive applications.
Negotiable
MOQ: 1 Piece (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, Alloy Steel (e.g., 40Cr, 42CrMo, 20CrMnTi)
Surface Treatment:
Other, Gas Nitriding / Plasma Nitriding
Application:
Other, Industrial Drive Systems
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Alloy Steel (e.g., 40Cr, 42CrMo, 20CrMnTi)
Surface Treatment
Other, Gas Nitriding / Plasma Nitriding
Application
Other, Industrial Drive Systems
Standard
ANSI B92.1
Tolerance Grade
Grade 6h
Tooth Profile
Involute
Hardness after Nitriding
HV 500 - 700
Machining Process
CNC Hobbing, Gear Grinding
Inspection
100% Dimensional & Hardness Check
Length
Customizable (up to 3000 mm)
Henan San Kuang Machinery Technology Co., Ltd. is a professional manufacturer of precision industrial drive components, established in 2014 with a factory area of 10,000–30,000 square meters and a skilled team of 51–100 employees. Our ANSI B92.1 Grade 6h Surface Nitriding Involute Spline Shaft is engineered to meet the highest demands of power transmission and motion control systems. By combining strict adherence to the ANSI B92.1 standard, precision Grade 6h tolerance, and a durable nitriding surface treatment, we deliver a shaft that offers exceptional wear resistance, fatigue strength, and dimensional accuracy for long service life in heavy-duty applications. Whether for gearboxes, machine tools, or automated assembly lines, this spline shaft ensures reliable performance and seamless integration.
Product Features & Benefits
- ANSI B92.1 Compliance – Each shaft is manufactured in full compliance with the ANSI B92.1 standard for involute splines, ensuring interchangeability and compatibility with mating components.
- Grade 6h Precision Tolerance – The tight tolerance (Grade 6h) guarantees accurate tooth profile and spacing, reducing backlash and vibration, and improving overall transmission efficiency.
- Surface Nitriding Treatment – A controlled gas or plasma nitriding process creates a hardened case (HV 500–700) while maintaining a tough core. This significantly enhances wear resistance, anti-galling properties, and fatigue life.
- High-Strength Alloy Steel – Made from premium alloy steels such as 40Cr, 42CrMo, or 20CrMnTi, offering excellent tensile strength and toughness for demanding industrial environments.
- Customizable Dimensions – We offer flexible shaft lengths, diameters, and keyway configurations to suit your specific application requirements (length up to 3000 mm).
- Advanced Manufacturing – CNC hobbing and gear grinding processes ensure precise tooth geometry and surface finish. Each shaft undergoes 100% dimensional inspection and hardness testing.
- Versatile Applications – Ideal for gearboxes, machine tools, agricultural machinery, construction equipment, and any industrial drive system requiring reliable torque transmission.
Technical Specifications
| Parameter | Value / Range |
|---|---|
| Standard | ANSI B92.1 (Involute Spline) |
| Tolerance Class | Grade 6h |
| Surface Treatment | Gas / Plasma Nitriding |
| Surface Hardness | HV 500 – 700 |
| Case Depth | 0.2 – 0.6 mm (customizable) |
| Core Hardness | HRC 28 – 38 |
| Material Options | 40Cr, 42CrMo, 20CrMnTi, or similar alloy steel |
| Tooth Count (Z) | 6 – 60 (as per drawing) |
| Module (M) | 1.0 – 8.0 |
| Length | Up to 3000 mm |
Quality Control: Every spline shaft is subject to rigorous inspection including coordinate measuring machine (CMM) checks, profile measurement, hardness testing, and magnetic particle inspection to ensure zero defects. Our facility is certified under multiple management systems including ISO9001, ISO14000, and others, reflecting our commitment to quality and continuous improvement.
Why Choose Henan San Kuang?
- Established Expertise: Since 2014, we have focused on precision machining and industrial transmission components, with an annual export value of US$2.5–5 million serving global markets.
- Large Manufacturing Capability: Our 10,000–30,000 m² factory is equipped with advanced CNC hobbing machines, gear grinders, and nitriding furnaces, enabling efficient production of both standard and custom orders.
- Global Reach: We ship through major ports including Shanghai, Lianyungang, Qingdao, and Tianjin to clients in North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East.
- Comprehensive Certifications: Our quality systems conform to ISO9001, ISO14000, SA8000, OHSAS18001, and more, ensuring that every product meets international standards.
- Reliable After-Sales Support: We provide technical consultation, CAD drawings review, and timely delivery. Contact our team for a quote or custom engineering assistance.
Our ANSI B92.1 Grade 6h Surface Nitriding Involute Spline Shaft is the optimal choice for demanding industrial drive applications that require high precision, long service life, and reliable torque transmission. Backed by 10+ years of manufacturing experience, stringent quality control, and a customer-centric approach, we invite you to experience the difference of working with a trusted partner. Request a quote or technical drawing review today to discuss your specific requirements.
Frequently Asked Questions (FAQ)
-
Q: What does “Grade 6h” mean for a spline shaft?
A: Grade 6h refers to the tolerance class of the spline tooth profile as defined by ANSI B92.1. It indicates a tight fit with minimal clearance, which helps reduce backlash and improve positioning accuracy in high-precision drives. -
Q: Is the surface nitriding treatment applied to the entire shaft?
A: Typically, the nitriding is applied to the entire shaft surface, but selective masking can be arranged if certain areas need to remain machinable or unhardened. Please specify your requirements when ordering. -
Q: Can you produce spline shafts with different tooth counts or modules?
A: Yes. We produce custom tooth counts (Z) from 6 to 60 and modules (M) from 1.0 to 8.0, as long as they fall within the ANSI B92.1 standard. Non-standard profiles are also possible upon request. -
Q: What materials do you recommend for high-torque applications?
A: For high torque and shock loads, we suggest 42CrMo or 20CrMnTi alloy steel. For cost-sensitive applications, 40Cr is a good choice. Our engineering team can recommend the optimal material based on your working conditions. -
Q: Do you provide a hardness report or dimensional certificate?
A: Absolutely. We offer a comprehensive inspection report including hardness values, case depth, tooth profile measurements, and dimensional conformity for every batch. Certificates are available upon request. -
Q: What is the typical lead time for a custom spline shaft?
A: Standard custom orders usually take 15–20 working days after drawing approval. Rush orders may be accommodated depending on current production capacity. -
Q: How do you ensure the nitriding layer is uniform and free from defects?
A: We use advanced programmable nitriding furnaces with precise temperature and atmosphere control. Each batch is tested for surface hardness and case depth, and we perform microstructural analysis as needed. -
Q: Can you help with the design of a spline shaft if I only have performance requirements?
A: Yes. Our engineers can design the spline geometry according to ANSI B92.1 based on your torque, speed, and space constraints. Just share your application details and we will propose a tailored solution.
Send Inquiry to This Supplier
1Yr
Year Established
2014
Factory Size
10,000-30,000 square meters
Annual Export Value
US$2.5 Million - US$5 Million
Total Employees
51 - 100 People
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