Precision CNC Turning Alloy Steel 42CrMo Spline Shaft with Carburizing Treatment HRC 55-62
Product Description
This precision CNC turned alloy steel 42CrMo spline shaft features carburizing heat treatment to HRC 55-62 for maximum surface hardness and wear resistance. The 42CrMo (AISI 4140 equivalent) material provides excellent core strength and fatigue resistance. The spline is machined to DIN 5480 standard with ±0.01mm profile accuracy. Each shaft undergoes case depth measurement, hardness traverse testing, and magnetic particle inspection before shipment. Suitable for automotive transmissions and heavy machinery drivetrains.
As a leading CNC turning manufacturer with over 15 years of precision machining experience, we produce Precision CNC Turning Alloy Steel...
Technical Specifications
| Parameter | Specification |
|---|---|
| Material | Alloy Steel 42CrMo |
| Tolerance | ±0.01mm |
| Surface Treatment | Carburized HRC 55-62 |
| Material Grade | Alloy Steel 42CrMo |
| Tolerance | ±0.01mm |
| Surface Finish | Carburized HRC 55-62 |
| Heat Treatment | Carburizing + Quenching |
| Spline Type | DIN 5480 |
Key Selling Points
Factory Strength
50+ CNC Machines
Swiss-type lathes, 3/4/5-axis machining centers, turn-mill centers from Citizen, Star, Doosan, and Mazak
Advanced QC Lab
CMM, 2D vision measurement, roughness tester, hardness tester, salt spray chamber, spectral analyzer
Certifications
ISO 9001:2015, SGS certified, material traceability, PPAP Level 3, full inspection reports
Engineering Team
15+ engineers providing DFM analysis, process optimization, and free technical consultation
Monthly Capacity
500,000+ precision turned parts per month with stable quality and on-time delivery
Global Export
Exported to 30+ countries across North America, Europe, Japan, Korea, and Southeast Asia
Applications
- Automotive Manual Transmissions
- Heavy Truck Drivetrain Shafts
- Industrial Gearbox Input Shafts
- Agricultural Tractor PTO
- Construction Equipment Final Drives
Frequently Asked Questions
Q: What is 42CrMo steel equivalent to?
A: 42CrMo is the Chinese standard equivalent to AISI/SAE 4140, DIN 42CrMo4, and JIS SCM440. It offers excellent hardenability, strength, and fatigue resistance.
Q: What spline standards can you machine?
A: We machine DIN 5480, ANSI B92.1 (involute), JIS D2001, SAE straight-sided, and custom spline profiles. Spline gages are used for 100% inspection.
Q: What is the carburizing process?
A: Our gas carburizing process diffuses carbon into the surface at 900-950°C, followed by quenching and tempering. This produces a hard, wear-resistant case (HRC 55-62) with a tough, ductile core.
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ISO 9001:2015 Certified | 15+ Years Experience | Global Shipping | OEM/ODM Welcome
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