Abstract: The invention provides a gold-supporting catalyst comprising gold nanoparticles and a carrier consisting of porous ceramic obtained by firing a mixture comprising an aluminum compound, a lime component, and a plastic clay containing 1% by mass or less of feldspars and quartz, wherein the gold nanoparticles are supported in an amount of 0.01 to 10 parts by mass on the carrier based on 100 parts by mass of the carrier.

Abstract: A rolling bearing for supporting a shaft on which a fan is provided, has an inner ring having an inner ring race on an outer surface thereof, an outer ring having an outer ring race on an inner surface thereof, balls provided between the inner ring race and the outer ring race and a retainer which keeps the balls apart each other in a circumferential direction, wherein an inner diameter of the bearing is set to be 3 mm or more and 17 mm or less, an outer diameter of the bearing is set to be 8 mm or more and 40 mm or less, when a thickness ti and a thickness te satisfies a relationship te?1.24 ti, and a residual austenite content in the inner ring is 7 wt % or less.

Abstract: A pair of pre-loaded ball bearings 1, 2 are fixed to a shaft 3 having a flange 3a to be a reference surface Q formed on one end, and where a clearance C is secured between the surface 1c on the flange side of the inner race 1b of the bearing 1 on the side of the flange 3a and the flange surface 3b.

Abstract: A rolling bearing lubricated with a grease includes an outer ring, an inner ring, a plurality of rolling elements disposed between respective rolling raceway tracks of the outer ring and the inner ring, and a retainer having a plurality of pockets for locking the rolling elements to freely roll and formed of resin material. In the rolling bearing, the radial clearance gap ratio of the pockets of the retainer is set to 0??r/Da?0.09, and the axial clearance gap ratio of the pockets is set to 0??a/Da?0.06 when the kinematic viscosity of base oil at 40° C. of the grease is 10 to 40 mm2/sec, being set to 0??a/Da?0.05 when the kinematic viscosity of base oil is 10 to 90 mm2/sec, being set to 0??a/Da?0.025 when the kinematic viscosity of base oil is 10 to 160 mm2/sec.

Abstract: A rolling bearing for supporting a shaft on which a fan is provided, has an inner ring having an inner ring race on an outer surface thereof, an outer ring having an outer ring race on an inner surface thereof, balls provided between the inner ring race and the outer ring race and a retainer which keeps the balls apart each other in a circumferential direction, wherein an inner diameter of the bearing is set to be 3 mm or more and 17 mm or less, an outer diameter of the bearing is set to be 8 mm or more and 40 mm or less, when a thickness ti and a thickness te satisfies a relationship te?1.24 ti, and a residual austenite content in the inner ring is 7 wt % or less.

Abstract: A rolling bearing lubricated with a grease includes an outer ring, an inner ring, a plurality of rolling elements disposed between respective rolling raceway tracks of the outer ring and the inner ring, and a retainer having a plurality of pockets for locking the rolling elements to freely roll and formed of resin material. In the rolling bearing, the radial clearance gap ratio of the pockets of the retainer is set to 0??r/Da?0.09, and the axial clearance gap ratio of the pockets is set to 0??a/Da?0.06 when the kinematic viscosity of base oil at 40° C. of the grease is 10 to 40 mm2/sec, being set to 0??a/Da?0.05 when the kinematic viscosity of base oil is 10 to 90 mm2/sec, being set to 0??a/Da?0.025 when the kinematic viscosity of base oil is 10 to 160 mm2/sec.

Abstract: A pair of pre-loaded ball bearings 1, 2 are fixed to a shaft 3 having a flange 3a to be a reference surface Q formed on one end, and where a clearance C is secured between the surface 1c on the flange side of the inner race 1b of the bearing 1 on the side of the flange 3a and the flange surface 3b.

Abstract: A one-way clutch containing rolling bearing comprises a bearing part 2 and an OWC part 10 sharing an outer race 3 and an inner race 4. The bearing part 2 contains a plurality of balls 9 and the OWC part 10 contains sprags 11a and a ribbon spring 12a. The balls 9 and the sprags 11a are held by a single integral-type cage 13.

Abstract: A radio frequency filter having at least two dielectric resonators in juxtaposition, each resonator including a tubular dielectric body. Formed on the dielectric body of each resonator are an inner and an outer conductors and various other conductors including a terminal conductor for connection of the filter to external circuitry. In order to assure positive isolation of the terminal conductors of both resonators from each other, the outer conductors are provided with extensions which intervene between the terminal conductors for preventing then from being capacitively coupled together.

Abstract: A radio frequency filter having at least two dielectric resonators in juxtaposition, each resonator including a tubular dielectric body. Formed on the dielectric body of each resonator are an inner and an outer conductors and various other conductors including a terminal conductor for connection of the filter to external circuitry. In order to assure positive isolation of the terminal conductors of both resonators from each other, the outer conductors are provided with extensions which intervene between the terminal conductors for preventing them from being capacitively coupled together.

Abstract: A rolling bearing unit comprises outer and inner ring members, a cover having an open and portion fitted to the outer ring member and a rotational speed sensor which is mounted in the cover to detect the rotation of the inner ring member, such that the cover can be removed from the outer ring member without causing any damage on the associated components, by applying a tool to the open end portion of the cover at a recess on the outer ring member faced to the open end portion of the cover.

Abstract: A rolling bearing, comprising an inner race, an outer race and rolling members which roll therebetween, at least one of the inner and outer races being subjected to carburizing and heating treatment, is characterized in that:the one race comprises a carbon steel containing 0.1 to 0.7 wt. % of carbon, with the residual austenite content on the track surface layer being 20 to 45 vol. % and the rolling members comprise a carbon steel containing 0.7 to 1.1 wt. % of carbon having carbonitriding and heating treatment applied on the surface layer, with the residual austenite content in such surface layer being 20 to 45 vol. % and the carbonitride in such surface being 3 to 15 vol. %.In another form of the bearing, the rolling members may comprise a carbon steel containing 0.1 to 0.7 wt. % of carbon, with the surface layers thereof being subjected to carburizing and heating treatment and having a residual austenite content of 20 to 45 vol. %.

Abstract: A seal for a rolling bearing 30 applicable to a strut-type suspension has a sealing member 40 of the bearing provided with two lips 43 and 47. The lip 43 is at the radial inner side of the member 40 and slidably contacts the outer face of a piston rod 10. The other lip 47 is at the radial outer side of the sealing member so as to contact the outside surface of either a stationary bearing ring 32 or a holding case 38' therefor. The sealing member is further provided with a coupling head 45 engageable with the radial inner tip end portion of a rotary bearing ring 35 so that the sealing member can be made integral with the bearing 30.

Abstract: In a rolling bearing for strut-type suspensions, a rotary bearing race 33 has, at its radially inner part, a cylindrical portion 37 having an outwardly extending flange 38. The radial inner end part 41 of the stationary bearing race 34 of the bearing is disposed at such a position so as to be overlapping with the outwardly extending flange 38. At least one of the above-mentioned members confronts and overlaps the other and includes a member having self-lubricating characteristics.

Abstract: A conical roller bearing has a side plate of substantially L-shaped cross section fitted to the larger diameter side end portion of the inner peripheral surface of an outer race. The inner end surface of the side plate and the end surface of the larger diameter portion of a retainer are axially opposed to each other so that the inner end surface and the end surface of the larger diameter portion bear against each other when the cone has moved axially outwardly.

Abstract: An oscillator case assembly includes a casing element and an oscillator element housed therein in a hermetically sealed manner. The casing element is made of a solid insulating material, preferably glass or ceramic material, and at least two thin conductive layer elements are provided on said casing element, each serving as parts of lead-in and lead-out means for the oscillator element, respectively.