| 摘要 |
PURPOSE:To make a manufacturing process ever so easy as well as to prevent the occurrence of any scuffing, by installing a solid lubricant layer composed of a polymeric material as the principal ingradient in the one side of two bearing structural members to be installed slidably or rotatably each other via a hydraulic fluid. CONSTITUTION:When a slider 2 is applied to a rectilinear type static pressure fluid bearing installed so as to surround a guide 1 in design, a deep groove (air pocket) 3, an air inlet port 4 being open to this groove 3 and plural throttle grooves 5 extending from the groove 3 are all formed on a sliding surface inside the slider 2. Likewise, on the sliding surface of the slider 2, a low friction factor material, for example, ethylene fluoride and the like or a solid lubricant layer 6 composed of a material containing graphite, molybdenum bisulfide, etc., are solidly set by means of glueing, and the said throttle grooves 5 are made up in this solid lubricant layer 6. And, when each coefficient of thermal expansion in the guide 1, the slider 2 and the solid lubricant layer 6 is set down to alpha, beta and gamma respectively, it means setting either alpha<beta<gamma or alpha>beta>gamma. |
