摘要:
PROBLEM TO BE SOLVED: To provide a grease composition which is excellent in washing resistance against wash water including hydrocarbon-based surfactant etc., and which does not degrade lubricating performance.SOLUTION: Polymer and either one of wax or zinc oxide or both are contained in base grease in which metal soap is contained in hydrocarbon base oil as a thickener.
摘要:
PROBLEM TO BE SOLVED: To provide additives for lubricant for improving tribologic properties, to provide novel lubricants containing the additives, and to provide a process for the preparation thereof. SOLUTION: The lubricants contain nano particles, and the lubricants are characterized in that: the nano particles are ceramic particles which have preferably specified shapes and specified particle sizes and have specified thermal conductivity; the nano particles are dispersed in base material oil comprising natural oil, mineral oil and/or synthetic oil, ester oil or the like. The process for the preparation of the lubricants is also provided. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a grease composition capable of expressing a low friction coefficient in a wide temperature range from a low-temperature range to a high-temperature range. SOLUTION: The grease composition comprises: a base oil; a thickener based on metallic soap consisting of at least one metal selected from the group consisting of lithium, calcium, magnesium and aluminum and aliphatic acids containing at least one selected from the group consisting of hydroxyl, carboxyl and metal carboxylate groups in a molecular structure; and nanoparticles consisting of at least one selected from the group consisting of oxides, carbides and diamond. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a bearing for electronically controlled motors for motor vehicles having excellent seize resistance even in high temperature environment of ≥180°C, having low torque in a wide temperature range from low temperatures to high temperatures, and excellent in torque stability. SOLUTION: In this rolling device, the deep groove ball bearing is equipped with the inner wheel 1 having the orbital face 1a on the outer peripheral face, the outer wheel 2 having the orbital face 2a opposing to the orbital face 1a on the inner peripheral face, a plurality of rolling elements 3 rotatively arranged between the orbital faces 1a and 2a, the retainer 4 for retaining a plurality of rolling elements 3 between the inner wheel 1 and the outer wheel 2 and the sealing device 5, 5 for covering the opening space between the inner wheel 1 and the outer wheel 2. In addition, the grease G for lubricating the deep groove ball bearing is fully charged into the spaces being formed between the inner wheel 1 and the outer wheel 2 and having rolling elements 3. The grease G includes perfluoropolyether oil, fluoroplastic and inorganic fine particles having a primary particle size of ≤50 nm. COPYRIGHT: (C)2008,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a grease composition for lubricating a resin, which is suitable for lubrication between a resin member and a metal member or mutual resin members and which can more reduce the wear of the resin member than heretofore attained, and to provide a gear apparatus and an electrically driven power steering apparatus less in the wear of the resin part of a worm wheel and hence excellent in durability. SOLUTION: The grease composition for lubricating a resin contains a base oil that contains at least one of a poly-α-olefin oil, a mineral oil and a highly purified mineral oil in a ratio of ≥70 mass% based on the total amount of the base oil; a thickening agent that contains at least one of a metal soap, a metal complex soap and a urea compound in a ratio of ≥50 mass% based on the total amount of the thickening agent; and at least one of a non-polar wax, polar wax, fluororesin powder having a specific surface area of ≥3 m 2 /g, inorganic fine particle having an average particle size of ≤2 μm and solid lubricating agent. A gear apparatus lubricated with the above grease composition and an electrically driven power steering apparatus equipped with the above gear apparatus are also provided. COPYRIGHT: (C)2005,JPO&NCIPI