CNC Flanged Bushings are critical positioning components designed for smooth mechanical motion and secure housing retention. Each custom CNC Flanged Bushing integrates a precision-turned body with a solid shoulder that acts as a structural reference stop, eliminating extra thrust rings and streamlining assembly layouts.

Technical Specifications

Parameter	Performance & Machining Data
Material Options	AL6061-T6, AL7075, SS304, SS316, 4140 Steel, Brass C36000, POM, PEEK
Bore Size Range	1.00 mm to 120.00 mm ID
Outer Diameter Range	3.00 mm to 180.00 mm OD
Machining Tolerance	±0.010 mm standard (up to ±0.005 mm on critical fits)
Surface Roughness	Ra 0.8 µm turned finish (down to Ra 0.4 µm polished)
Secondary Features	Cross-drilled oil ports, keyways, retention flats, external threads

Functionality of CNC Flanged Bushings

Integrated Reference Shoulder

The machined lip provides a physical stopping point against housing walls, maintaining axial location without snap rings.

Concentricity & Runout Control

Single-setup turning guarantees alignment between the inside bore and outer diameter, preventing uneven wear during operation.

Customized Feature Integration

Internal grease distribution channels, side mounting holes, or threaded sections can be added during production.

Drawing-to-Part Precision

Dimensions follow exact CAD geometries, supporting clearance, transition, or interference fits per drawing callouts.

Material Capabilities

01/

Aluminum Alloys
Lowers moving mass while offering stable mechanical strength and high heat dissipation.

02/

Stainless Steels
Resists chemical corrosion, elevated temperatures, and fluid exposure in harsh operational settings.

03/

Alloy Steels
Delivers high load capacity and wear resistance for heavy-duty structural joints.

04/

Copper & Brass Alloys
Provides self-lubricating characteristics, low sliding friction, and high thermal conductivity.

05/

Engineering Polymers
Offers light weight, chemical resistance, and electrical insulation for specialized assemblies.

Product Configurations

Straight Bore Bushings
Provides smooth continuous internal bearing surfaces for linear shafts or rotating sleeves.

Multi-Step Flanged Bushings
Features multiple outer diameters to locate across complex internal housings.

Grooved Lubrication Bushings
Includes internal spiral or radial oil grooves to keep lubricant distributed across sliding surfaces.

Threaded & Milled Bushings
Incorporates external threads or flat tool surfaces for secure mounting and precise adjustment.

Industrial Applications of CNC Flanged Bushings

Automotive Linkages & Pivots

Provides reliable axial locations and smooth movement in steering arms, brake pedals, and transmission mounts.

Industrial Automation Units

Maintains alignment in linear slide blocks, conveyor rollers, and automated robotic arms.

Enclosures & Instrument Supports

Functions as precise standoff sleeves and structural pivot points in compact hardware units.

Surgical Devices & Lab Equipment

Delivers exact tolerances and clean surface finishes for smooth positioning mechanisms.

Heavy Machinery Joints

Supports high structural loads and maintains pin alignment inside heavy linkage arms.

Production & Quality Control

Multi-Axis Turning
High-speed equipment handles internal boring, outer diameter turning, and flange facing in unified operations.

Secondary Operations
Live-tooling centers execute off-center drilling, flat milling, keyway cutting, and thread chasing.

Surface Finishing
Components receive protective treatments including anodizing, passivation, plating, and ultrasonic cleaning.

Dimensional Verification
Parts pass through coordinate measuring machines, optical comparators, and air gauges to verify tolerance compliance.

Essential Procurement Specifications

Detailed Engineering Prints

Provide clear 2D prints and 3D CAD models outlining critical dimensional limits and fit tolerances.

Material Standard Callouts

Indicate exact metal or plastic grades to ensure material performance meets operational demands.

Surface Treatment Requirements

Define exact plating types, layer thicknesses, or required surface roughness values.

Inspection Documentation

Request dimensional inspection logs, material test reports, or coating verification certificates as needed.

Key Design Advantages

Tailored Fit Geometry
Components match housing dimensions directly, avoiding compromises associated with standard off-the-shelf parts.

Reduced Component Count
The built-in flange takes the place of separate thrust washers, simplifying inventory and assembly steps.

Reliable Dimensional Consistency
Machining processes maintain strict repeatability across small prototype lots and full production runs.

FAQ

Q: What functional purpose does the flange serve on a bushing?

A: The flange acts as a physical locator against the mounting housing, preventing sideways movement and absorbing axial loads during operation.

Q: Can bore and outer dimensions be customized to non-standard sizes?

A: Yes, internal diameters, outer dimensions, flange widths, and total lengths are turned directly to your specified CAD drawings.

Q: Which materials work best for high-wear sliding applications?

A: Hardened alloy steels, high-strength stainless steel, and specific brass or bronze alloys offer optimal resistance against continuous sliding friction.

Q: Can features like keyways, threads, or side holes be included?

A: Multi-axis turning centers cut internal threads, drill transverse oil holes, and mill side flats in a continuous manufacturing setup.

Q: What manufacturing tolerances can be held on critical fits?

A: Standard production achieves tolerances within ±0.010 mm, with tighter tolerances possible depending on part geometry and material selection.

Q: What details are required to obtain a fast production quote?

A: Submitting a detailed 2D or 3D drawing, material specification, required quantity, surface finish requirements, and inspection requests enables an accurate review.

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