Description
Product Overview
The image displays a typical high-precision stepped shaft manufactured by Maozhong Precision. Crafted from premium GB 45# Steel (equivalent to JIS S45C / ASTM 1045), this component exemplifies our capability in producing durable mechanical transmission parts. The visible uniform turning marks indicate our advanced CNC lathe processing, ensuring excellent concentricity and surface integrity. Designed for heavy-load applications, this shaft serves as a critical component in automation equipment, automotive transmissions, and industrial machinery.
Core Manufacturing Features
Superior Material Selection
We utilize high-quality Medium Carbon Steel (45#/S45C) known for its excellent comprehensive mechanical properties.
- High Strength: Capable of withstanding significant bending and torsional loads.
- Good Machinability: Allows for complex geometries like the stepped profiles and keyways seen in the image.
- Heat Treatability: Perfect candidate for quenching and tempering to enhance wear resistance.
Precision CNC Turning Process
As shown in the product photo, the shaft features multiple diameter steps and precise transitions.
- Tight Tolerances: We maintain dimensional accuracy within ±0.005mm for critical fitting surfaces.
- Surface Finish: The consistent linear texture demonstrates our optimized cutting parameters, reducing friction and wear during operation.
- Edge Treatment: Sharp edges are professionally deburred and chamfered (as seen on the top face) to ensure safe assembly and prevent stress concentration.
Technical Specifications
| Parameter | Specification Details |
|---|---|
| Material | GB 45# / JIS S45C / ASTM 1045 / DIN C45 |
| Processing Method | CNC Turning, Milling, Grinding |
| Hardness Options | Normalized (HB170-220) or Quenched & Tempered (HRC28-32 / HRC45-50) |
| Tolerance Grade | ISO IT6 – IT7 (Precision Fit) |
| Surface Treatment | Black Oxide, Zinc Plating, Nickel Plating, or Raw Finish |
| Application | Motor Shafts, Gear Axles, Guide Posts, Roller Pins |
Applications & Industry Solutions
Where is this 45 Steel Shaft Used?
Due to its balance of toughness and strength, this specific type of machined shaft is widely applied in:
Automation Equipment
Used as guide rods and drive shafts in robotic arms and linear modules, requiring high straightness and smooth movement.
Automotive Industry
Serves as transmission axles and pivot pins in engine components and chassis systems, enduring high-frequency vibration.
General Machinery
Ideal for conveyor rollers and pump shafts in agricultural and packaging machines where cost-effectiveness and durability are key.
Why Choose Maozhong Precision for Your Shaft Projects?
Advanced Quality Control
Every shaft undergoes strict inspection.
- Dimensional Verification: Checked using high-precision Calipers, Micrometers, and CMM (Coordinate Measuring Machine).
- Hardness Testing: Ensured via Rockwell Hardness Tester to meet exact heat treatment requirements.
Customization Capabilities
The part in the image is just one example. We can customize:
- Complex Geometries: Adding splines, threads, or cross-holes based on your CAD drawings.
- Special Coatings: Applying anti-corrosion or low-friction coatings per your environmental needs.
Order & Lead Time
Fast Prototyping & Mass Production
- Prototype: Samples available within 3-5 days for design verification.
- Mass Production: Scalable manufacturing with consistent quality for large orders.
- Documentation: Full Material Test Reports (MTC) and Inspection Reports provided with every shipment.
Request a Quote Today
Have a similar shaft design? Upload your 2D/3D drawings now to get an instant DFM analysis and competitive pricing from Maozhong Precision.




