INDUSTRY COMPONENT

Bearing Surface / Face

Precision-machined flat surface on air bearing pads that enables near-frictionless motion through air film lubrication.

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Component Specifications

Definition
The bearing surface or face is the precisely finished flat interface on an air bearing pad that creates a thin, pressurized air film when supplied with compressed air. This component maintains extremely tight geometric tolerances (typically within microns) to ensure uniform air gap distribution, enabling frictionless linear or rotational motion with nanometer-scale precision in industrial applications.
Working Principle
Operates on the principle of aerostatic lubrication, where compressed air is forced through microscopic pores or grooves on the surface, creating a pressurized air film that separates the bearing face from the opposing surface, eliminating mechanical contact and friction.
Materials
High-grade aluminum alloys (6061-T6, 7075), stainless steel (304, 316), ceramic composites (alumina, silicon carbide), or polymer composites with surface hardness ≥HRC 40 and surface roughness Ra ≤0.1μm.
Technical Parameters
  • Pore Size 5-20μm
  • Load Capacity 10-50 N/cm²
  • Air Consumption 5-20 L/min per pad
  • Surface Roughness Ra 0.05-0.2μm
  • Flatness Tolerance ≤1μm/100mm
  • Operating Pressure 3-6 bar
Standards
ISO 12129-1, DIN 31698, ISO 1101

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Bearing Surface / Face.

air bearing surface precision bearing face frictionless motion surface aerostatic bearing component machine tool bearing Bearing Surface / Face Bearing Surface / Face in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Air Bearing Pad

A precision component that creates a thin film of pressurized air to support and guide loads with minimal friction.

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Engineering Analysis

Risks & Mitigation
  • Surface contamination blocking air pores
  • Geometric deformation under thermal variation
  • Corrosion in humid environments
  • Uneven wear from particulate ingress
FMEA Triads
Trigger: Surface contamination from particulates
Failure: Blocked air pores leading to contact friction and surface scoring
Mitigation: Install multi-stage filtration (≤0.1μm) in air supply and implement regular surface cleaning protocols
Trigger: Thermal expansion mismatch with base material
Failure: Surface warping and loss of flatness tolerance
Mitigation: Use materials with matched thermal coefficients and implement temperature-controlled environments (±1°C)

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Geometric tolerances per ISO 1101: Flatness ≤0.001mm, Parallelism ≤0.002mm
Test Method
ISO 12129-1 for bearing performance, surface measurement per ISO 4287 with white light interferometry

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What surface finish is required for optimal air bearing performance?

Surface roughness should be Ra ≤0.1μm with flatness tolerance within 1μm per 100mm to ensure uniform air film distribution and stable levitation.

How does the bearing surface maintain air film stability?

Through precisely engineered surface geometry and controlled porosity that regulates air flow, creating a stable pressure distribution that prevents contact even under varying loads.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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