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Supply air is obtained uniformly through minute pores all over the bearing surface. State of supply air blowing in water Measurement accuracy of rotational fluctuation of air spindle Linearity, vibration and reproducibility of air slide Performance comparison tests with disc bearings and other manufacturers’ porous materials ●Averaging effect: Air film averages surface roughness. ●Comparison tests of  bearing performance  values If the lift amount is 6 μm, for example, the Oiles Air Bearing demonstrates approximately 1.5 times as large rigidity and approximately 1.2 times as high load capacity as other manufacturer’s product. Lift amount Load Better than contact type slide Suitable to precision instruments for precision measurement, inspection, etc. requiring high reproducibility. State of measurement (Non-contact type electrostatic displacement gauge is used.) Measured number of turns: 10 turns X-direction displacemen[t mm] Y-direction displacemen[t μm] ●Y displacement is produced according to the surface roughness and warp. ●Repetitive accuracy depends on the roughness of both sides. Movement of contact type Movement of non-contact type (air bearing) X-direction displacemen[t mm] Y-direction displacemen[t μm] ●Smooth movement not influenced by surface roughness. ●Warp amplitude is also reduced. ●Repetitive accuracy is high. ●No stick slip is caused. Bearing surface diameter: φ78 mm Supply air pressure (gauge pressure): 0.5 MPa Air slides for trial Y X Y X Air film (bearing clearance) Mating surface Air bearing * These performance data are for reference only. 0 40 80 60 20 120 100 160 140 220 200 180 0 5 10 15 20 0 500 1000 1500 2000 0 5 10 15 20 Lift amount (μm) Load capacity(N) OAB Other manufacturer’s product Lift amount (μm) Bearing rigidity(N/μm) OAB Other manufacturer’s product 270 Selection Guide Product Information Plastic Bearing Multi-layer Bearing Metallic Bearing Air Bearings Technical Slide Shifter Information Corporate Profi le OAB TIR:0.15μm Supply air pressure: 0.5MPa Revolution: 50000min-1 NRRO:0.03μm