FANLIN TECH

80×40mm Flat Rectangular Air Bearing

40mm × 80mm Flat Rectangular Air Bearing — Microporous Ceramic, High Stiffness, Sub-Micron Precision

Product Showcase

40×80mm Flat Rectangular Air Bearing — Overview

40×80mm Flat Rectangular Air Bearing — Technical Details

40×80mm Flat Rectangular Air Bearing — Application

40×80mm Flat Rectangular Air Bearing — Overview

Product Overview

Fanlin Flat Rectangular Air Bearing (AB-RE80-40-MC01) is a precision rectangular air bearing featuring microporous ceramic as the air-bearing surface material. Utilizing advanced microporous ceramic technology, it generates a uniform air film for zero-contact, zero-friction motion with 5 μm nominal air gap and 58 N/μm stiffness. With 40 mm × 80 mm footprint and 2975 mm² effective area, it delivers 623 N load capacity in a 145 g package, making it ideal for high-precision positioning stages in semiconductor, AOI inspection, and laser processing applications.

Fanlin Tech specializes in precision air bearing technology, mastering both porous carbon and ceramic material systems. The AB-RE80-40-MC01 represents our standard flat rectangular air bearing platform, suitable for multi-axis precision stages requiring nanometer-level positioning accuracy with high stiffness. Customization available for load, stiffness, and mounting requirements.

Core Parameters

Load Capacity

623 N

Air Gap

5 μm

Stiffness

58 N/μm

Weight

145 g

Key Features

Microporous Ceramic Technology

Advanced microporous ceramic material provides uniform air film distribution with exceptional flatness (≤ 0.5 μm) for stable and precise motion

High Stiffness

58 N/μm stiffness per bearing provides rigid support — four bearings in a stage configuration achieve 232 N/μm system stiffness for demanding precision applications

Zero Friction & Wear

Contactless air-float operation with no mechanical wear — theoretically unlimited service life and no particle generation — outperforming traditional ball guides in every aspect

Versatile Application

40 × 80 mm compact footprint with ball socket mounting (13 mm dia) enables flexible integration into multi-axis gantry systems, XY stages, and ultra-precision positioning platforms

Applications

Semiconductor Equipment

Wafer inspection, AOI detection, lithography, and laser cutting stages requiring ultra-clean, particle-free environments with sub-micron positioning

Optical & Metrology Systems

Interferometer platforms, optical scanning stages, and precision measurement equipment demanding nanometer-level motion accuracy

Precision Motion Stages

Gantry air bearing stages, linear motor platforms, and ultra-precision positioning systems for EBSD scanning, laser processing, and metrology

High-Precision Manufacturing

AOI inspection machines, semiconductor inspection tools, and high-precision 3D scanning platforms requiring >5000 N system load capacity

Specifications

Parameter	Value
Type	Flat Rectangular Air Bearing
Outer Dimensions	40 mm × 80 mm
Height	20 mm
Weight	145 g
Effective Bearing Area	38.10 mm × 78.11 mm
Effective Work Area	2975 mm²
Housing Material	Hard Anodized Aluminum
Air Bearing Surface	Microporous Ceramic
Surface Flatness	≤ 0.5 μm
Load Capacity	623 N
Equivalent Load Mass	63.5 kg
Air Gap	5 μm
Stiffness	58 N/μm
Max Speed	50 m/s
Resolution	Infinite
Rated Air Pressure	0.414 MPa (60 psi)
Recommended Pressure Range	0.414 ~ 0.552 MPa
Max Allowable Pressure	0.689 MPa (100 psi)
Air Consumption (Min)	1.73 NLPM
Air Consumption (Max)	2.94 NLPM
Air Supply Requirement	Clean, Dry Compressed Air
Air Inlet	M5 × 0.8
Ball Socket Diameter	13 mm
Recommended Ball Thread	M10 × 0.75
Optional Ball Thread	M10 × 0.50
Socket Thread	M16 × 2
Recommended Rail Surface Roughness	≤ 16 RMS

FAQ

We recommend granite, hard anodized aluminum, stainless steel, tool steel, ceramic, glass, or coated steel surfaces with a roughness of ≤ 16 RMS and high flatness. The surface must be free of scratches, pits, and particles for optimal performance. Granite is the preferred choice for metrology-grade stages due to its dimensional stability.

For a typical 200-800 mm travel stage, we recommend 4 AB-RE80-40-MC01 bearings per axis — 4 for X-axis guidance and 4 for Y-axis guidance (8 total). This configuration achieves >5000 N total load capacity and >460 N/μm system stiffness, suitable for AOI inspection, semiconductor inspection, and laser processing equipment.

Microporous ceramic offers higher surface hardness and wear resistance compared to porous carbon, making it more suitable for applications where the bearing may encounter challenging environmental conditions. It also provides excellent dimensional stability and can achieve superior surface flatness.

Yes. Fanlin Tech offers customization for load capacity, stiffness, mounting configurations, and material options. Our engineering team can design variants with different form factors, ball socket arrangements, or multi-bearing configurations to meet your specific application requirements.

Get Detailed 80×40mm Flat Air Bearing Specifications

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