Abstract: An apparatus and a method of surface-treating a half sliding bearing, the method comprising the steps of: preparing a tank which accommodates a surface-treatment solution and an anode of an alloy to be applied to the bearings as a surface treatment; successively and one by one introducing the bearings into the surface-treatment solution; performing the surface treatment in such a manner that the surface layer of the alloy is applied to the surface of the bearings by feeding an electricity between a cathode served by the bearing and the anode via the surface-treatment solution while moving, in the surface-treatment solution, the bearings being introduced into the surface-treatment solution in a state in which the bearings is brought into contact with one another; and successively and one by one drawing out the bearings, which have been applied with the surface treatment, from the tank.

Abstract: A composite sliding member includes a metal wire mesh or expanded metal impregnated and covered with a composition of 0.1-50% by volume of one or more of PFA, FEP and EPE, and 0.1-50% by volume of at least one of oxybenzoyl polyester, polyphenylene sulfide, thermosetting resin, metal lubricant, metal oxide, composite metal oxide, metal sulfide, metal fluoride, carbon-based self lubricant, fiber material, and ceramics, with the remainder being substantially PTFE.

Abstract: A multilayer aluminum-based alloy plain bearing having superior compatibility and superior fatigue resistance, comprising a steel back metal, an aluminum alloy intermediate bonding layer bonded to the steel back metal, and an Al--Sn--Si family bearing alloy layer bonded to the intermediate bonding layer, the aluminum bearing alloy layer consisting, by weight, of 7 to 15% Sn, 0.5 to 3% Si, and the balance Al and incidental impurities, the hardness of the aluminum bearing alloy layer being less than 50 Vickers hardness, the aluminum alloy intermediate bonding layer consisting, by weight, of at least one kind selected from the group consisting of 0 to 1.7% Mn, 0 to 1.2% Cu and 0 to 1.8% Mg, and the balance Al and incidental impurities, Vickers hardness of the aluminum alloy intermediate bonding layer being in a range of not less than 60% of the Vickers hardness of the aluminum bearing alloy layer but not more than 120% of the Vickers hardness of the aluminum bearing alloy layer.

Abstract: A secondary coil for a linear motor, which is a composite metal plate comprising a backing metal layer 1, an intermediate bond metal layer 2 and a surface metal layer 3 which are integrally connected, the intermediate bond metal layer being formed of aluminum or aluminum alloy, the surface metal layer being formed of copper or copper alloy having a thickness of 2 to 8 mm. A copper plate or a copper alloy plate for the surface layer and an aluminum plate or an aluminum alloy plate for the intermediate layer are placed on each other and connected by rolling. The surface-layer metal plate with the bond layer is placed on a metal plate for the backing metal layer, with the bond layer being contacted with the metal plate for the backing metal layer, and two plates are connected by rolling.

Abstract: An aluminum bearing alloy sliding member excellent in anti-seizure property, of which sliding surface is coated with a film of aluminum fluoride or manganese phosphate formed by a chemical conversion process and having a thickness ranging from 0.1 .mu.m to 10 .mu.m.

Abstract: A Cu-based wear-resistant alloy of a sliding material consists essentially of, by weight, 10-35% Zn, 2-20% Pb, 1-10% Ni, 0.1-1% B and, as required, 0.5-10% of Sn. The alloy can be used under severe conditions of use at elevated speed and temperature with reduced risk of seizure and corrosion. The alloy can be produced by mixing Pb powder and Ni--B alloy powder with Cu--Zn powder or Cu--Zn--Sn alloy powder, or mixing Ni--B alloy powder with Cu--Zn--Pb alloy powder or Cu--Zn--Sn--Pb alloy powder. The alloy can be compacted and sintered to form a sliding member or a composite sliding member is obtained by sintering and integrating the alloy on a steel backing plate optionally having a surface plated with copper.

Abstract: A small bearing which has the characteristics of a sliding bearing having a small coefficient of friction and of a rolling bearing, includes an outer metallic cylinder, a plastic inner cylinder, rolling elements, and a collar, with a plurality of rolling element holding grooves being provided on the outer peripheral surface of the inner cylinder. The grooves are formed in parallel with the axis of the bearing, and the rolling elements positioned therein are rotatable. Grease can be applied to the outer peripheral sur#ace of the inner cylinder, which holds the rolling elements, and the entire inner cylinder is covered with the outer cylinder, with the end portions of the outer cylinder being bent toward the axis. By forming the metal components from an austenite-type stainless steel, the problem of corrosion may be overcome.

Abstract: A plurality of retaining grooves for rolling members are arranged in the inner cylinder. The retaining grooves have semicircular bottom halves and top halves having sector-shaped sections diverging radially outwardly. The rolling members are accommodated in the bottom halves of the retaining grooves and grease fills the top halves. Then, the inner cylinder is fit into the outer cylinder. In rotating the bearing, the rolling members are rotated by the bottom halves of the retaining grooves serving as a sliding bearing and rolled on the inner peripheral surface of the outer cylinder. When a heavy load is applied, the rolling members are pushed down to the same level as the outer peripheral surface of the inner cylinder, thereby distributing and supporting the load by the outer peripheral surface of the inner cylinder and the rolling members.

Abstract: A bearing comprises a metallic outer tube having a flange, a inner tube of resin having a flange, radial rollers, thrust balls and a collar. A plurality of roller receiving grooves are formed on the outer periphery of the inner tube, while a plurality of roller receiving recesses are formed on the flange of the inner tube. The receiving grooves are formed in parallel relation to the bearing axis. The receiving recesses are formed circumferentially in concentric relation to the bearing axis. Each of the rollers received respectively within the receiving groove is rotatable. Grease is possibly apply to an outer peripheral surface of the inner tube body and a flange surface thereof. The cylindrical outer tube covering the entirety has both ends which are bent toward the axis. As corrosion countermeasure, it is preferred to form metallic parts of the bearing with stainless steel.

Abstract: The present invention provides a multilayer composite sliding material with excellent seizure resistance property having a steel plate or a steel plate having surfaces plated with copper or the like; a bond layer having a thickness of 0.05 to 0.5 mm, formed on the steel plate, and made of a sintered powder material consisting of 5 to 16% Sn, 0 to 15% Pb, 0 to 0.5% P and balance essentially Cu; and an alloy layer having a thickness of 0.1 to 1.0 mm, formed on the bond layer, and made of a sintered powder material consisting of 5 to 16% Sn, 1 to 12% MoS.sub.2 and balance essentially Cu. In a modified form of the alloy layer, not more than 20% Pb, not more than 1% P or not more than 12% Ni may be added. MoS.sub.2 powder may be coated with Cu or Ni.

Abstract: An Ni-based bearing alloy consisting, by weight, of 9-30% Cr, 5-19% Fe, 0.1-1.5% Si, 2-22% Co, 1.4-11.0% Mo, and the balance Ni and incidental impurities, said alloy having a matrix in which hard particles of a Co-Mo-Cr-Si alloy and/or BN are uniformly dispersed in weight ratios of 5 to 35% and not more than 5.0, respectively. The Ni-based alloy matrix provides superior heat resistance. Hard particles of Co-Mo-Cr-Si alloy uniformly dispersed in the matrix improve sliding characteristic with or without uniform dispersion of Bn as a solid lubricant, whereby the bearing alloy exhibits superior heat resistance and sliding characteristic when used in high temperature oxidizing atmosphere.

Abstract: An Oldham ring of a scroll type compressor having a swivel scroll of aluminum alloy. The Oldham ring is of cast aluminum alloy and has a pair of projections (a) serving to engage with a pair of guide grooves formed in a surface of the swivel scroll adjacent to a crankshaft. Sliding surfaces of the projections which are to be brought into contact with inner surfaces of the guide grooves are each covered with a metal sheet made of a metal which is different from aluminum and aluminum alloys. It is recommended that the metal sheet has the following thickness (t): t=0.5-2.5 mm, T/20.ltoreq.t.ltoreq.T/4 (where, T represents the widthwise dimension of the projection in the circumferential direction of the Oldham ring). The metal sheet is united with the Oldham ring by insert casting.

Abstract: A bushing having an outer sliding surface is produced by a die forming method without machining. A crowning shape is provided to the outer surface so that the outer diameter of the bushing is smaller at its opposite longitudinal ends, and increases progressively toward a central zone of the bushing. A cylindrical bushing blank is fitted on distal end portion of a vertically-movable mandrel. Next, one of an upper die and a lower die is reactively moved toward the other to plastically work the bushing blank by the both dies and the mandrel, thereby working the bushing. An inner diameter of the upper die is larger at its lower end, and decreases progressively away from the lower end, and an inner diameter of the lower die is larger at its upper end, and decreases progressively away from the upper end.

Abstract: An inner sliding surface layer of a bearing bushing is formed into a crowning shape in an axial direction by a die shaping method. A bushing blank fitted on a generally-tapered lower end portion of an upper mandrel is inserted, together with the upper mandrel, into a hole in a forming die, and the bushing blank is deformed between the forming die, the upper mandrel and a lower mandrel having an upper end portion similar in shape to the lower end portion of the upper mandrel, thereby obtaining the bushing having the sliding inner peripheral surface of a crowning shape.

Abstract: The sliding member of the invention comprises a steel backing and a sintered Cu-alloy layer mounted integrally on one surface of the backing metal, wherein the sintered Cu-alloy comprises 1 to 15% Sn, 1 to 20% Ni-B compound, 1% or less phosphorus, and the balance of Cu and impurities. Cu-alloy may further contain 1 to 30% Pb and/or 0.5 to 8% graphite. Pb and graphite provide the sliding alloy layer with good lubrication property. Preferably the Ni-B compound is used, which is composed of 7 to 15% B and the balance of Ni and impurities.

Abstract: A copper base alloy suitable for use as a material of a sliding member, superior in seizure resistance, wear resistance and corrosion resistance. The alloy comprises 1.0 to 3.5 wt % Mn, 0.3 to 1.5 wt % Si, 11.5 to 25 wt % Zn, 5 to 18 wt % Pb and the balance substantially Cu and incidental impurities, the lead being uniformly distributed through the structure of the alloy. The alloy has a microstructure of which matrix is composed of .alpha.-phase alone. The alloy can further contain at least one selected from the group consisting of 0.02 to 1.5 wt % Mg and 0.1 to 1.5 wt % Te and/or at least one selected from the group consisting of 0.5 to 3.0 wt % Ni and 0.3 to 3.0 wt % Al.

Abstract: The present invention relates to a composite sliding member having a backing metal and a sliding layer consisting of lead-containing copper alloy and being bonded to the backing metal, and to the method of producing the same. The present invention resides in more superior sliding performance exhibited due to uniform and fine distribution of lead particles in the copper alloy matrix. The method of the present invention to produce composite sliding members comprises using the atomized powder in which lead particles are finely and uniformly distributed in the alloy matrix and forming a cladding layer as the sliding layer through a plasma arc welding apparatus.

Abstract: There is disclose a method of and apparatus for surface-treatment of half sliding bearings having a multi-layer construction including a steel backing, a bearing alloy layer of copper alloy or aluminum alloy, an intermediate plating layer and a surface layer. A plurality of half sliding bearings are attached to a support member in such a manner that the half sliding bearings are arranged end-to-end into a semi-cylindrical configuration. The support member is transferred to be sequentially inserted into a plurality of openable and closable plating cases mounted respectively within pretreatment tanks and plating tanks, thereby sequentially forming the intermediate plating layer and the surface layer on the half sliding bearings.

Abstract: This invention pertains to a method of manufacturing a half-split bearing, comprising the steps of: providing a blank having a width corresponding to a width of a final said half split bearing: first bending opposite ends of the blank by a first punch and die set while restraining a central portion of the blank in a wall-thickness wise direction, the restraining produced by clamping the blank between a restrainer located centrally on the punch of the first punch and die set and the die of said set, thereby forming a partially processed bent blank having first bending; further, bending in a second stage said partially processed bent blank by a second punch and die set beginning at points between the first bendings and said restrained a central portion while continuing to restrain restraining the central portion of the partially processed bent blank in the wall-thickness wise direction, the restraining produced by clamping the partially processed bent blank between a restrainer located centrally on the punch of

Abstract: Disclosed is a composite plating film for sliding members, essentially containing at least one of the alloy elements selected from tin, indium, antimony, and copper; inorganic particles; and lead; the composition of the composite plating film being:a) at least one of the alloy elements selected from tin, indium, antimony, and copper . . . 2 to 30 weight % in total;b) inorganic particles . . . 0.3 to 25 volume %; andc) lead . . . the balance.