We manufacture high-precision CNC machined gears including spur gears, helical gears, worm gears, bevel gears, racks, pinions, and custom gear assemblies. Perfect for prototypes, small-batch production, and custom requirements where standard gears don’t fit.
Support for:
Precision motion control and power transmission
Robotics, automation, automotive, medical devices, and industrial equipment
Complex geometries and tight tolerances
Precision CNC machining · Small-batch friendly (1–600 pcs) · No tooling cost · Fast DFM feedback
Our CNC Machined Gears Capabilities
At 6CNC, we specialize in contract manufacturing of custom precision gears and gear-related components. We help OEMs, automation companies, and machinery manufacturers produce high-performance gears that meet exact tooth profile, concentricity, and assembly requirements.
We commonly support:
- Spur gears and helical gears
- Worm gears and worm wheels
- Bevel gears and miter gears
- Gear racks and pinions
- Internal gears and planetary components
- Gear shafts and integrated gear assemblies
Key Features
- Tight tolerances on tooth profile, pitch, and runout for smooth, low-noise transmission
- Complex features: keyways, hubs, bores, threads, and custom profiles
- Wide material selection for strength, wear resistance, and lightweight needs
- Consistent quality across prototypes to small-medium production runs
- Ready for assembly, heat treatment, or surface treatment
Technical Specifications
| Feature | Specification |
|---|---|
| Materials | Aluminum, Brass, Stainless Steel, Carbon Steel, Alloy Steel, Titanium, Engineering Plastics (Nylon, POM, PEEK) |
| Module / Size | 0.5 – 10+ module (custom diameters available) |
| Tolerance | ±0.005mm ~ ±0.02mm (critical tooth features) |
| Surface Finish & Treatment | Polishing, Grinding, Heat Treatment, Plating, Anodizing, Black Oxide |
| Processes | CNC Turning, Swiss Lathe, 5-Axis Milling, Gear Hobbing/Milling, Grinding |
| Batch Size | 1 – 600 pcs (prototypes to small-medium runs) |
Common Gear Types We Support
Spur Gears
Straight teeth parallel to the axis. Simple, efficient power transmission between parallel shafts. Ideal for low to medium speed applications.
Helical Gears
Angled teeth for smoother, quieter operation and higher load capacity. Excellent for high-speed or heavy-duty use.
Bevel Gears & Worm Gears
For changing direction of power transmission (intersecting or non-parallel shafts). Self-locking options available for worm gears.
Gear Racks & Pinions
Convert rotary motion to linear motion. Precision racks for CNC machines, automation, and positioning systems.
Custom & Integrated Gears
Gear shafts, planetary systems, internal gears — we support complex, multi-feature designs.
Why Choose 6CNC for Custom Gears
- Free DFM review focused on tooth profile accuracy, manufacturability, and cost optimization
- Strong capability in small-module and complex custom gears that are difficult with traditional methods
- Swiss-type and multi-axis machines for high concentricity and tight tolerances
- Full support: machining + heat treatment + finishing + inspection
- Fast turnaround for prototypes and bridge production from Shenzhen
Ready to Start Your Custom Gear Project?
Our engineering team will review your design and provide optimized manufacturing solutions.
Upload Drawings & Get a QuoteFast response within 24 hours · Free DFM review
