Coordinate Measuring Machine
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This page explains how Air Bearing / Linear Guide System is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A precision motion system that uses compressed air to create a frictionless bearing surface and linear guides to enable ultra-smooth, high-accuracy movement in coordinate measuring machines.
Technical details and manufacturing context for Air Bearing / Linear Guide System
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Load Capacity | 50–500 kg | Dynamic load rating per carriage |
| Travel Length | 100–2000 mm | Customizable per application |
| Straightness Accuracy | ±0.5–±2 µm/m | Over full travel length |
| Positioning Repeatability | ±0.1–±0.5 µm | BidirectionalISO 230-2 |
| Operating Pressure | 0.4–0.6 MPa | Clean dry air required |
| Air Consumption | 10–50 L/min | Per bearing at rated pressure |
| Maximum Speed | 0.5–2 m/s | Limited by air film stiffness |
| Operating Temperature | 10–40 °C | Below 10°C risk of condensation |
| Air Quality Class | ISO 8573-1 Class 3.4.3 | Particle, water, oil limitsISO 8573-1 |
| Guide Rail Material | Hardened steel 60 HRC | Ground and lapped surfaceDIN 17230 |
| Bearing Material | Aluminum alloy / porous graphite | Porous graphite for even air distribution |
| Weight | 5–50 kg | Per meter of travel |
| Ingress Protection | IP54–IP65 | Higher IP for harsh environmentsIEC 60529 |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
| pressure: | 40-100 psi (2.8-6.9 bar) supply pressure, 0.5-5 psi (0.03-0.34 bar) bearing pressure |
| flow rate: | 2-20 SCFM per bearing (depending on size and gap) |
| temperature: | 15°C to 35°C (typical operating range, may vary by material) |
| load capacity: | Up to 200 N per bearing (varies with size and pressure) |
| flatness requirement: | ≤5 μm/m surface flatness for optimal performance |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
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The air film thickness is typically 5-20 microns, which separates the moving carriage from the guideway, eliminating metal-to-metal contact.
The system requires clean, dry air conforming to ISO 8573-1 Class 3.4.3, which specifies limits for particles, water, and oil.
The dynamic load rating per carriage ranges from 50 to 500 kg, depending on the specific model and configuration.
The system achieves positioning repeatability of ±0.1 to ±0.5 µm by using air bearings to eliminate friction and precision linear guides to constrain motion, minimizing hysteresis and stick-slip.
This component is essential for the following industrial systems and equipment:
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