CNC Machined Aluminum Rotary Components

Detailed Description

CNC machined aluminum rotary components are designed for rotational motion, mechanical transmission, positioning and lightweight rotating assemblies. Typical components include hubs, pulleys, rollers, collars, flanges, wheels, rotor bodies and custom cylindrical parts.

Aluminum alloys such as 6061-T6 and 7075 are commonly used where low rotating mass, corrosion resistance and good machinability are required. CNC turning controls outside diameters, bores, shoulders and grooves, while secondary milling can create keyways, bolt patterns, flats and cross holes.

For rotating assemblies, concentricity, runout and bore-to-diameter relationships are important. Precision turning and controlled workholding can help maintain consistent rotational geometry.

Available Surface Finishes

• As-Turned: Standard precision machining finish.
• Fine Polishing: Improves surface smoothness and appearance.
• Clear Anodizing: Adds corrosion resistance.
• Black Anodizing: Common for industrial rotary components.
• Hard Anodizing: Improves wear resistance on contact surfaces.
• Bead Blasting: Creates a uniform matte surface before anodizing.

Structural & Functional Breakdown

• Precision Central Bore: Supports shafts, bearings and rotational assemblies.
• Stepped Diameters: Accommodate multiple mating components.
• Circumferential Grooves: Support belts, retaining rings or sealing elements.
• Bolt Circle Patterns: Provide mechanical connection with adjacent parts.
• Keyways & Flats: Improve torque transfer and rotational positioning.

Key Features

• Precision turning for rotational geometry
• Lightweight aluminum construction
• Controlled concentricity and runout
• Turning and milling combined in one component
• Custom bores, grooves and bolt patterns
• Prototype and low-to-medium-volume production

Applications

• Motor Components
• Pulleys
• Rotary Hubs
• Rollers
• Robotics
• Automation Systems
• Transmission Equipment
• Industrial Machinery