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14 Selection Guide Product Information Plastic Bearing Multi-layer Bearing Metallic Bearing Air Bearings Technical Slide Shifter Information Corporate Profi le Home electrical apparatus and office automation, which are easily affected by oil adhesion or leaks and do not accept lubrication Machines subject to penetration of foreign matter or used under severe conditions where normal plain bearings do not offer satisfactory wear resistance Eco-friendly clean energy facilities Automobiles, factory automation machines, and food machinery, which should be used under maintenance-free conditions without the need for lubrication for long periods