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This custom CNC machined hub is manufactured from 40CrNiMo high-strength alloy steel, combining precision CNC turning, multi-axis milling, drilling, tapping, and controlled heat treatment to achieve excellent mechanical performance.
The component integrates multiple precision features—including a central bore, threaded mounting holes, locating holes, and internal reinforcement ribs—into a single machined part. It is designed for demanding industrial applications requiring high strength, dimensional stability, fatigue resistance, and reliable long-term service.
40CrNiMo is a chromium–nickel–molybdenum alloy steel widely used for highly loaded mechanical parts because it can achieve an excellent balance of:
Its properties depend heavily on the selected quenching and tempering process, making heat treatment a critical part of manufacturing.
For 40CrNiMo, quenching and tempering are commonly used to develop a combination of high strength and good toughness. The exact temperatures and holding times depend on the required mechanical properties and component size. Proper heat treatment also improves fatigue performance and service life in heavily loaded applications.
Typical benefits include:
The accurately machined bore provides reliable shaft alignment and concentric assembly.
The four threaded holes allow secure fastening while maintaining uniform load distribution.
The rib structure increases stiffness without requiring a completely solid design, helping optimize strength-to-weight characteristics.
Precision locating holes support repeatable assembly and accurate positioning during installation.
| Property | Description |
|---|---|
| Material | 40CrNiMo Alloy Steel |
| Manufacturing Process | CNC Turning + CNC Milling |
| Heat Treatment | Quenched & Tempered (Custom Specification) |
| Surface Finish | Precision Machined |
| Mounting Holes | Threaded |
| Locating Features | Precision Bores |
| OEM / ODM | Supported |
| Prototype | Available |
| Drawing Formats | STEP / STP / IGS / X_T / DWG / PDF |
Unlike aluminum components, high-strength alloy steels such as 40CrNiMo rely on heat treatment to achieve their final mechanical properties. Inadequate quenching or tempering can reduce strength or toughness, while excessive temperatures may coarsen the grain structure and degrade performance. Process parameters should therefore be selected according to the part geometry and required service conditions.
Components with this geometry are commonly found in:
The final application depends on the customer's engineering design.
Every production batch may include:
We support customization of:
40CrNiMo offers higher hardenability, strength, toughness, and fatigue resistance after proper heat treatment, making it suitable for demanding mechanical components.
Many precision components are rough-machined first, heat treated to achieve the required properties, and then finish-machined to meet final dimensional tolerances. The exact sequence depends on the design and tolerance requirements.
Yes. Required hardness and heat-treatment specifications can be defined according to customer drawings or engineering standards.
STEP, STP, IGS, Parasolid (X_T), DWG, DXF, and PDF are commonly accepted.
They are commonly used in industrial automation, heavy machinery, servo drives, gearbox assemblies, mining & construction equipment, motion control systems, machine tools, and custom OEM equipment.
Inspection services include CMM, bore gauge, thread plug gauge, runout, concentricity, post-heat treatment hardness testing, visual cosmetic checks, and full material traceability.
Upload your engineering drawing or 3D model to receive:
