Industry-Verified Manufacturing Data (2026)

Aluminum CNC Machined Bearing Housing

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Aluminum CNC Machined Bearing Housing used in the Aluminum CNC Machining sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Aluminum CNC Machined Bearing Housing is characterized by the integration of Main Housing Body and Bearing Bore. In industrial production environments, manufacturers listed on CNFX commonly emphasize aluminum alloy 6061 construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Precision aluminum housing for mounting and protecting bearings

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Product Specifications

Technical details and manufacturing context for Aluminum CNC Machined Bearing Housing

Definition
A CNC machined aluminum component designed to securely mount and protect bearings in mechanical assemblies. It provides precise alignment and support for rotating shafts while offering thermal dissipation and corrosion resistance. These housings are manufactured through precision milling, turning, and drilling operations to achieve tight tolerances for bearing fit and mounting interfaces. They are commonly used in industrial machinery, automotive systems, and electromechanical devices where reliable bearing performance is critical.
Working Principle
Provides structural support and alignment for bearings, transferring loads to the main assembly while protecting the bearing from contaminants.
Common Materials
aluminum alloy 6061, aluminum alloy 7075, anodized aluminum coating
Technical Parameters
  • Inner diameter for bearing fit (mm) Customizable
  • Bolt circle diameter and hole positions (mm) Customizable
Components / BOM
  • Main Housing Body
    Primary structural support
    Material: Aluminum Alloy
  • Bearing Bore
    Precision surface for bearing fit
    Material: Machined Aluminum
  • Mounting Flange
    Interface for assembly attachment
    Material: Aluminum Alloy
  • Seal Groove Optional
    Retention for sealing elements
    Material: Machined Aluminum
Engineering Reasoning
Temperature: -40°C to 120°C, Axial load: 0-500 N, Radial load: 0-800 N, Rotational speed: 0-6000 RPM
Yield strength of 6061-T6 aluminum: 276 MPa, Thermal expansion differential exceeding 0.1 mm at 150°C, Bearing seat tolerance deviation beyond ±0.01 mm
Design Rationale: Thermal fatigue from cyclic temperature gradients exceeding 80°C, Stress concentration at sharp fillet radii below 1.5 mm, Galvanic corrosion with steel bearings in chloride environments
Risk Mitigation (FMEA)
Trigger Thermal expansion coefficient mismatch (Aluminum: 23.6 μm/m·K vs Steel bearing: 12 μm/m·K)
Mode: Bearing seizure due to interference fit loss at 100°C
Strategy: Thermal expansion compensation grooves with 0.05 mm clearance at 20°C
Trigger Resonant vibration at 850 Hz matching housing natural frequency
Mode: Fatigue cracking initiating at bolt hole stress concentrators
Strategy: Stiffening ribs increasing natural frequency to 1200 Hz, radius optimization to 2.0 mm at stress concentrations

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Aluminum CNC Machined Bearing Housing.

aluminum bearing housing CNC machined bearing mount precision bearing housing aluminum CNC machined bearing housing precision aluminum bearing housing 6061 aluminum bearing housing anodized aluminum bearing housing

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar (gauge)
other spec: Max shaft speed: 10,000 RPM, Vibration limit: 5 g RMS
temperature: -40°C to 150°C
Media Compatibility
✓ Lubricating oils (ISO VG 32-68) ✓ Water-glycol hydraulic fluids ✓ Dry inert gases (e.g., nitrogen)
Unsuitable: Chlorinated or acidic chemical environments
Sizing Data Required
  • Bearing outer diameter (mm)
  • Required housing mounting configuration (e.g., flange, pillow block)
  • Shaft speed and radial/axial load ratings

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fatigue cracking
Cause: Cyclic loading from bearing forces and thermal expansion mismatches leading to stress concentration at sharp corners or machining marks
Bearing seat wear/loosening
Cause: Inadequate interference fit, improper bearing installation, or aluminum's lower hardness allowing fretting and clearance development
Maintenance Indicators
  • Audible high-frequency vibration or whining noise during operation
  • Visible aluminum oxide powder (white residue) around bearing housing or mounting surfaces
Engineering Tips
  • Apply controlled interference fits with thermal installation methods to prevent housing damage during bearing mounting
  • Implement regular vibration analysis monitoring to detect early bearing degradation before housing damage occurs

Compliance & Manufacturing Standards

Reference Standards
ISO 286-2:2010 (Geometrical product specifications - Limits and fits) ANSI B4.1-1967 (Preferred Limits and Fits for Cylindrical Parts) DIN 7184-1 (Plain bearings - Housing dimensions)
Manufacturing Precision
  • Bore diameter: ±0.01 mm
  • Flatness of mounting surface: 0.05 mm
Quality Inspection
  • Coordinate Measuring Machine (CMM) dimensional verification
  • Surface roughness measurement per ISO 4287

Factories Producing Aluminum CNC Machined Bearing Housing

Verified manufacturers with capability to produce this product in China

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✓ 93% Supplier Capability Match Found

P Procurement Specialist from Germany Jan 15, 2026
★★★★★
"The Aluminum CNC Machined Bearing Housing we sourced perfectly fits our Aluminum CNC Machining production line requirements."
Technical Specifications Verified
T Technical Director from Brazil Jan 12, 2026
★★★★★
"Found 35+ suppliers for Aluminum CNC Machined Bearing Housing on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
P Project Engineer from Canada Jan 09, 2026
★★★★★
"The technical documentation for this Aluminum CNC Machined Bearing Housing is very thorough, especially regarding Bore Diameter (mm)."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

8 sourcing managers are analyzing this specification now. Last inquiry for Aluminum CNC Machined Bearing Housing from Brazil (34m ago).

Frequently Asked Questions

What are the benefits of using aluminum alloy 6061 vs 7075 for bearing housings?

Aluminum 6061 offers excellent machinability and corrosion resistance at a lower cost, ideal for general applications. Aluminum 7075 provides higher strength and fatigue resistance, suitable for high-stress environments.

Can you customize the bore diameter and mounting hole specifications?

Yes, we offer fully customizable CNC machining with precise bore diameters, mounting hole patterns, and overall dimensions to match your specific bearing and application requirements.

How does anodized coating improve aluminum bearing housing performance?

Anodized coating enhances corrosion resistance, increases surface hardness for better wear protection, and provides electrical insulation while maintaining dimensional stability of the precision housing.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Aluminum CNC Machining sector.

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