Precision CNC Machined 20CrMnTi Alloy Steel External Spline Shaft for Transmission System
Description
This CNC machined external spline shaft is manufactured from high-strength 20CrMnTi alloy steel, designed for reliable torque transmission and precision mechanical power transfer applications. The component is widely used in gearbox systems, industrial transmission equipment, and automated machinery requiring high wear resistance and dimensional accuracy.
Produced through advanced CNC turning combined with precision spline machining processes, the shaft ensures excellent concentricity, stable engagement performance, and long service life under dynamic loading conditions. The spline section is carburized and quenched to achieve high surface hardness while maintaining a tough core structure, providing superior resistance to wear, fatigue, and impact.
With strict quality control procedures including dimensional inspection and hardness testing, this spline shaft delivers consistent performance in demanding transmission environments. Custom dimensions, spline specifications, and surface treatments are available according to customer drawings or technical requirements.
| Parameter | Specification |
|---|---|
| Product Name | CNC Machined External Spline Shaft |
| Manufacturing Process | CNC Turning, Spline Hobbing, Milling, Grinding |
| Material | 20CrMnTi Alloy Steel |
| Material Standards | GB / DIN / ASTM Available |
| Heat Treatment | Carburizing & Quenching |
| Surface Hardness | HRC 58–62 (Spline Area) |
| Core Hardness | HRC 30–40 |
| Surface Finish | Ra 0.8 – 1.6 μm |
| Machining Tolerance | ±0.005 mm |
| Shaft Type | External Straight Spline Shaft |
| Spline Processing | Gear Hobbing / Broaching |
| Diameter Range | Customized (Ø5 mm – Ø150 mm) |
| Length Range | Customized (10 – 500 mm) |
| Concentricity | ≤0.01 mm |
| Surface Treatment | Oil Protection / Black Oxide / Plating (Optional) |
| Application | Gearbox, Transmission System, Industrial Equipment |
| OEM / ODM | Supported |
| Drawing Format | STEP, STP, IGS, PDF, DWG |
| Quality Control | CMM Inspection, Hardness Test, Dimension Inspection |
| Certification | ISO 9001 / IATF 16949 (Optional) |
| Production Volume | Prototype to Mass Production |
Additional information
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