Abstract:
A rolling bearing which has a satisfactory life at a low cost even under such service conditions that water is incorporated into a lubricant either externally or due to dew condensation, or that vibration has an influence, and is particularly suitable for electrical equipment and accessories of automobile engines, such as alternators. The hydrogen ion index pH of a grease scaled in the interior of the bearing is adjusted to 7 to 13. For attaining similar effects, the pH of the grease is adjusted to 5 to 13 when an organic metal salt or ADTC has been added in a predetermined amount to the grease, when an inorganic compound having an average particle diameter of not more than 2 Ám has been added in a predetermined amount to the grease, or when a diurea compound containing an aromatic amine or a mixture of diurea compounds has been added as a thickening agent to the grease.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for modifying a plastic molded article, by which affinity with a lubricant is imparted to the plastic molded article, and to provide a plastic molded article which can suitably be used even under severe using conditions. SOLUTION: A crown type holder 14 formed from polyamide 66 reinforced with glass fibers is immersed in supercritical carbon dioxide containing a lubricant to apply a modification treatment for impregnating the lubricant into the surface of the crown type holder 14. The modified crown type holder 14 is built in a deep groove ball bearing. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PURPOSE: A modified graphite fluoride, obtained by partially decomposing a graphite fluoride by irradiation with electromagnetic waves, having improved lubricity characteristics, and suitable for a solid lubricants. CONSTITUTION: A modified graphite fluoride obtained by decomposing and modifying within 0.01W50wt%, preferably 0.1W10wt%, range graphite fluoride (GF), consisting of (CF) n or/and (C 2 F) n , and having generally 0.01W100μ particle diameter under irradiation with electromagnetic waves. Electromagnetic waves of any wavelengths generally called the electromagnetic waves within about 10 -17 W10 5 m wavelength region, may be used, but preferably the wavelength is within 10 -4 W10 -7 cm range. An organic solvent, e.g. ethanol, or water containing a surfactant is used as a dispersing agent for the GF. An aqueous solution of an alkali, e.g. NaOH, is used for accelerating the decomposition rate of the GF. When the resultant modified GF is used as a lubricant, the moldability of a molding material is improved due to the good dispersibility in oil, etc. and good compatibility with a resin, and a lower specific abrasion ratio than the unmodified GF is exhibited. COPYRIGHT: (C)1984,JPO&Japio
Abstract:
PROBLEM TO BE SOLVED: To provide an improved system for conducting cooling in an extremely low temperature. SOLUTION: A multicomponent refrigerant is compressed in a compressor lubricated with a poly-α-olefin-based oil, the oil is removed from the compressed refrigerant, and the compressed refrigerant is expanded to generate the cooling at the extremely low temperature for the purpose of supply preparation (of the cooling) to a cooling receptor. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
A grease composition for a constant velocity joint containing a base oil, a thickener, boron nitride powders, and a sulfur-phosphorus containing extreme pressure agent. The content of the thickener is 2 to 25 weight %, that of the boron nitride powders is 0.5 to 20 weight %, and that of the sulfur phosphorus containing extreme pressure agent is 0.1 to 10 weight %, each based on a total weight of the grease composition. The grease composition exhibits superior anti-flaking performance and can prolong the life time of a constant velocity joint.
Abstract:
Waterborne lubricants comprising: (A) water-soluble inorganic salt; (B) homogeneously dispersed solid lubricant; (C) at least one homogeneously emulsified substance selected from mineral oils, animal and plant oils and fats, and synthetic oils; (D) surfactant; and (E) water, in which the weight ratio (B)/(A) is from 0.05:1 to 2:1 and the weight ratio {C/(A + B)} is from 0.05:1 to 1:1, provide a one-step, highly lubricating waterborne lubricant for use in the cold plastic working of metals. This waterborne lubricant can replace the conversion coating treatment (phosphate, oxalate, etc.) + reactive soap treatment combined lubrication system now in general use and is free of the environmental issues associated with the combined lubrication system, provides for facile coating removal, and is not subject to the decline in seizure resistance caused by nonuniform add-on when large numbers of workpieces are treated together by immersion.
Abstract:
PCT No. PCT/CA97/00658 Sec. 371 Date Jun. 22, 1999 Sec. 102(e) Date Jun. 22, 1999 PCT Filed Sep. 11, 1997 PCT Pub. No. WO98/13445 PCT Pub. Date Apr. 2, 1998The present invention relates to novel lubricant compositions comprising a solid lubricant and a binding agent in water medium suitable for lubricating steel-steel interfaces such as tractor-trailer couplings, rail-wheel systems and other heavy duty applications. The invention also relates to compositions described above which include friction modifiers with high or very high and positive coefficients of friction such that the coefficient of friction is considerably higher than the solid lubricant. The invention further relates to compositions comprising a binding agent and a friction modifier with a very high and positive coefficient of friction in a water medium.