Flat Rectangular Air Bearings

Multiple bearing-surface, payload and mounting options for planar guidance and stage support

Flat Rectangular Air Bearing 80 × 40 mm — Overview

Flat rectangular air bearings use compressed air to form a stable film between the rectangular bearing surface and guide, enabling contactless support and low-friction motion for planar guidance, stage support and multi-bearing layouts. Multiple bearing-surface sizes, payloads and mounting options are available, with selection and customization for equipment space and operating conditions.

Fanlin Tech provides flat rectangular air-bearing selection and customization for different payload, stiffness, mounting, bearing-surface layout and material requirements. Air gap, air supply, port and system-level accuracy parameters must be confirmed against the datasheet and technical agreement.

Rectangular Bearing Surface

Multiple aspect ratios and bearing-surface options suit planar guidance, stage support and multi-bearing layouts

Contactless Air-Film Support

Compressed air forms a film for low-friction, low-vibration contactless support and motion

Low Wear & Clean Operation

Contactless operation reduces mechanical wear and particle generation for clean precision equipment

Standard / Semi-Custom

Payload, stiffness, mounting configuration, bearing-surface layout and material can be confirmed per application

Semiconductor Equipment

Clean planar support for wafer inspection, AOI, lithography and laser-processing stages

Optical & Metrology Systems

Low-friction planar guidance for interferometry, optical scanning and precision metrology equipment

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, semiconductor inspection and 3D scanning stages; system payload must be validated by layout

Series Overview

Flat Rectangular Air Bearing Product Line

The series covers porous bearing faces from 24 × 12 to 300 × 150 mm and stable loads from 32 to 10,000 N for different stage sizes, payloads and layouts. Select a model below to review its complete technical parameters.

Detailed Specifications

AB-RE40-40-MC02

40 × 40 mm

Parameter	AB-RE40-40-MC02
Porous Face (L × W)	40 × 40 mm
Bearing Envelope (L × W)	44 × 44 mm
Stable Load	133 N
Stiffness	17 N/μm
Air Flow	0.78–1.30 NLPM
Ball Socket	6 mm
Bearing Height	13 mm
Bearing Weight	0.052 kg
Rated Input Pressure	0.41 MPa
Fly Height	5 μm
Housing Material / Finish	Aluminum / Anodized
Porous Media Material	Porous Ceramic
Face Flatness	0.0005 mm
Pressure Port Thread	M3 × 0.5
Viable Pressure Range	0.414–0.552 MPa
Maximum Allowable Supply Pressure	0.689 MPa
Maximum Speed	45 m/s
Common Guide Surfaces	Granite, hard-coated aluminum, ceramics, glass, stainless steel, plated steel
Suggested Guide Surface Finish	16 RMS

Model length × width denotes the porous ceramic bearing-face size; the bearing envelope adds 4 mm to both length and width. Rated at 0.41 MPa supply pressure with a reference 5 μm air gap. Stable load, stiffness and flow figures are for selection guidance; final values are subject to the datasheet and technical agreement.

Rail material, surface roughness and flatness must be engineered against payload, travel and accuracy targets. Confirm them in the matching datasheet and technical agreement.

Bearing count and layout depend on total payload, moments, stage dimensions, target stiffness and safety factor; they cannot be fixed from travel alone. Engineering load and stiffness checks are required.

Body and bearing-face materials can be selected for payload, stiffness, cleanliness, environment and cost requirements. Confirm specific material combinations and their application limits in the datasheet and technical agreement.

Yes. Fanlin Tech offers customization for payload, stiffness, mounting configuration, bearing-surface layout and material. Final parameters are defined by the technical agreement.

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