CNC Machined Aluminum Alloy Stepped Sleeve Bushings For Precision Mechanical Applications

CNC Machined Aluminum Alloy Stepped Sleeve Bushings For Precision Mechanical Applications

Product Overview:

We offer high-quality CNC Machined Aluminum Alloy Stepped Sleeve Bushings engineered for precision mechanical applications requiring accurate fit, smooth operation, and long service life. Our bushings are manufactured using advanced CNC turning and milling centers, ensuring consistent quality across every component.

Key Technical Specifications:

Manufacturing Capabilities:

• CNC Turning: Precision machining of cylindrical features and stepped profiles

• CNC Milling: Keyways, flats, slots, oil grooves, and mounting holes

• Threading: Internal and external threads for installation or connection

• Chamfering & Deburring: All edges carefully finished for safe handling and assembly

Product Features:

✓ Precision Machined: CNC controlled processes ensure consistent dimensions and repeatable quality across all production runs

✓ Versatile Step Configurations: Single or multiple stepped diameters, tapered transitions, and shouldered designs available

✓ Material Excellence: Premium aluminum alloys (6061-T6, 7075-T6) selected for strength, machinability, and corrosion resistance

✓ Custom Engineered: Manufactured exactly to your specifications – we work from your drawings, samples, or design requirements

✓ Comprehensive Finishing: Wide range of surface treatments including anodizing (clear, hard, black), plating, and PTFE coating

Typical Specifications We Manufacture:

• Straight Stepped Sleeves: Simple stepped IDs or ODs for spacing and alignment

• Flanged Stepped Bushings: Integrated mounting flange for axial location

• Multi-Step Designs: Complex profiles with multiple diameter changes

• Special Features: Oil grooves, lubrication ports, keyways, threads, and mounting holes

Quality Commitment:

Every bushing undergoes thorough inspection to ensure it meets your specifications. We maintain strict process controls and full traceability throughout manufacturing.

1. What aluminum grades do you stock?
We regularly stock 6061-T6 and 7075-T6 in various diameters. Other grades (2024, 6082, 5083, 6063) available with short lead times.

2. Can you match an existing bushing I have?
Yes. Send us a physical sample or detailed measurements, and we can reverse engineer it. We'll capture all stepped diameters, lengths, and special features accurately.

3. What's the difference between 6061 and 7075 for bushings?

• 6061-T6: Better corrosion resistance, easier to machine, good for general use

• 7075-T6: Much stronger (comparable to steel), better for high-stress applications, slightly less corrosion resistant

4. Do you charge extra for small quantities?
No. We have competitive pricing across all quantities. Prototype quantities (1-5 pcs) are priced reasonably to support your development needs.

5. Can you add lubrication features?
Yes. We can machine:

• Spiral oil grooves

• Straight axial grooves

• Cross-drilled lubrication holes

• Grease pockets

6. What is the maximum size you can machine?

• Diameter: Up to 350mm OD

• Length: Up to 500mm (longer possible with special setup)

• Step count: Unlimited, but consult us for complex multi-step designs

7. How do you ensure concentricity between steps?
We machine all stepped diameters in single setup operations where possible, or use precision fixtures with guaranteed alignment. This ensures all steps are concentric to each other within 0.03mm.

8. What surface finish can you achieve?

• Standard as-machined: Ra 1.6μm - 3.2μm

• Fine machining: Ra 0.8μm

• Polished: Ra 0.4μm or better (upon request)

9. Do you offer any self-lubricating options?
Yes. We offer PTFE impregnated hard anodize, which embeds PTFE particles into the anodized surface for low friction, dry-running applications.

10. How quickly can you provide a quote?
Typically within 24-48 hours of receiving your drawing or specifications. Urgent requests can be quoted same day.