3d milling cnc precision cnc milling cnc turning service
Custom
Precision 3D milling CNC for complex contours and molds. Multi-axis machining with tight tolerances. Ideal for prototyping and production. Request a quote.
minimum order
1 piece
Quantity
$0.05 - $0.05
/ piece
Precision 3D milling CNC for complex contours and molds. Multi-axis machining with tight tolerances. Ideal for prototyping and production. Request a quote.
| Key Attributes | |
| Machining Capabilities | CNC Machining Processes:Broaching, Drilling, Etching/Chemical Machining, Laser Machining, Milling, Turning, Wire EDM, Rapid Prototyping |
| Materials Supported | Aluminum, Brass, Bronze, Copper, Hardened Metals, Stainless Steel, Steel Alloys, Plastic |
| Micro-Machining or Not | Micro Machining |
| Key Processes | CNC Milling, Turning, Drilling |
| Tolerance Standards | Industry-standard precision |
| Surface Treatments | Anodizing, Plasting, Polishing, etc. |
| Applications | Control Systems, Automotive Components |
| Place of Origin | Guangdong, China |
| Model Number | CUSTOM |
| Service Type | Customized OEM/ODM Manufacturing |
| Drawing Formats | PDF, CAD, IGES, STEP |
| Delivery Time | 7-30 Days |
| MOQ | 10 pcs |
· Product Overview
This precision CNC-machined black anodized aluminum step bushing/spacer is engineered for multi-stage alignment, spacing, and bearing applications in mechanical assemblies. Featuring a dual-bore stepped design and uniform wall thickness, this component delivers precise, stable positioning while withstanding dynamic loads and vibration. Crafted from high-grade aluminum alloy with a durable black anodized finish, it combines lightweight performance with exceptional corrosion resistance and wear protection, making it ideal for industrial machinery, automotive, and custom fabrication projects requiring reliable structural support.
· Core Specifications
| Specification | Details |
|---|---|
| Material | 6061-T6 Aluminum Alloy (standard); optional 7075-T6 aluminum or 304 stainless steel available |
| Process Standard | ISO 9001-certified CNC turning/machining, ±0.01mm dimensional tolerance, precision stepped bore machining |
| Surface Finish | Hard black anodized (standard); optional clear anodizing, passivation, or polishing |
| Key Features | Dual-bore stepped design, uniform wall thickness, corrosion-resistant finish, precision-machined for tight fits |
| Customization Options | Custom inner/outer bore sizes, heights, and step profiles available |
· Application Scenarios
This versatile step bushing/spacer is suitable for a wide range of applications:
- Industrial Machinery: Shaft alignment, bearing housing inserts, and equipment assembly spacers
- Automotive & Motorsports: Suspension components, brake system alignment, and engine bay mounting
- Robotics & Automation: Actuator mounts, bearing supports, and precision motion control assemblies
- Custom Fabrication & DIY: 3D printer builds, custom machinery, and hobbyist projects requiring multi-stage spacing
- Electronics & Enclosures: PCB mounting spacers, chassis alignment components, and device housing supports
· Production Process Introduction

· Packaging and Shipping Methods
- Packaging: Each bushing/spacer is individually wrapped in anti-static foam or plastic sleeves to prevent scratches. Bulk orders are packed in sturdy export-grade cartons with internal dividers for maximum protection. Custom branded packaging is available upon request.
- Shipping: We offer flexible global shipping options, including sea freight, air freight, and express courier services (DHL, FedEx, UPS). All orders include full tracking information, and we support EXW, FOB, CIF, and other Incoterms as required.
· Frequently Asked Questions (FAQ)
Q: What is your minimum order quantity (MOQ)?
A: Our standard MOQ is 50 pieces for standard sizes. For custom or prototype orders, we offer low-volume production starting at 10 pieces to support your project development.
Q: What is the typical lead time for orders?
A: Standard orders are processed and shipped within 10–20 business days after payment confirmation. Custom or large-volume orders may require 20–35 business days, depending on complexity and quantity. Expedited production is available for urgent orders upon request.
Q: Can you customize this bushing/spacer to my exact specifications?
A: Yes! We offer full customization, including custom bore sizes, heights, step profiles, material grades, and surface finishes. Our engineering team can also help refine your design for manufacturability.
Q: Do you provide quality certifications?
A: All products are manufactured under ISO 9001 quality standards. We can provide material test reports (MTR), dimensional inspection reports, and compliance documents upon request.
Q: Is the black anodized finish durable?
A: Yes, the hard anodized finish provides excellent resistance to scratches, corrosion, and wear, making it suitable for both indoor and outdoor applications. It also maintains a consistent, professional appearance over time.
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