A sliding member for a journal bearing is provided. A sliding layer includes fibrous particles dispersed in a synthetic resin, and has a sliding surface side region and an interface side region. The particles have an average particle size D.sub.sur, axi and D.sub.sur, cir respectively in an axial and circumferential cross-section in the sliding surface side region, and D.sub.int, axi and D.sub.int, cir respectively in axial and circumferential cross-sections in the interface side region. D.sub.sur, axi and D.sub.int, cir are 5-30 m, and D.sub.sur, cir and D.sub.int, axi are 5 to 20% of respectively D.sub.sur, axi and D.sub.int, cir. A dispersion index of the particles having the major axis length of 20 m or longer is 5 or more, both in the sliding surface side region in view of the axial cross-section and in the interface side region in view of the circumferential cross-section.

A sliding member for a thrust bearing is provided. A sliding layer includes fibrous particles dispersed in a synthetic resin, and has a sliding surface side region and an interface side region. The particles have an average particle size D.sub.sur, first and D.sub.sur, second respectively in first and second cross-sections in the sliding surface side region, and D.sub.int, first and D.sub.int, second respectively in first and second cross-sections in the interface side region. D.sub.sur, first and D.sub.int, second are 5-30 m, and D.sub.sur, second and D.sub.int, first are 5 to 20% of respectively D.sub.sur, first and D.sub.int, second. A dispersion index of the particles having the major axis length of 20 m or longer is 5 or more, both in the sliding surface side region in view of the first cross-section and in the interface side region in view of the second cross-section.

Provided are a shaped article made of a fibrous filler-reinforced thermoplastic resin composition and capable of increasing mechanical properties and a method for producing the shaped article. The shaped article is made of a resin composition containing: inorganic fibers having an average fiber length of 1 m to 300 m and an average aspect ratio of 3 to 200; and a thermoplastic resin, and the inorganic fibers have an average orientation angle of 24 or lower.

A Hybrid rolling bearing includes an inner raceway and an outer raceway and a plurality of rolling elements arranged therebetween. The outer raceway and the inner raceway are made from bearing steel, having a first surface RMS roughness R.sub.q1. The rolling elements are made from a ceramic material and have second surface RMS roughnesses R.sub.q2,i. At least one of the rolling elements has an increased surface RMS roughness R.sub.q2,N, which is significantly higher than the RMS roughnesses R.sub.q2,i, of the remaining rolling elements. The hybrid rolling bearing can be installed within a refrigerant compressor.

A pair of hybrid ball bearings have stainless steel rings and ceramic balls and are configured such that when the first inner ring and the first outer ring are in contact with the first plurality of ceramic balls under zero measuring load and zero mounting load and the second inner ring and the second outer ring are in contact with the second plurality of ceramic balls under zero measuring load and zero mounting load a certain gap exists between either the inner rings or the outer rings. The gap is based on the diameter of the inner ring or on the pitch diameter of the balls and on whether the bearings have an X configuration or an O configuration.

A bush bearing having an outer lubricating layer, a manufacturing method therefor and a scroll compressor having same applied thereto, according to the present disclosure, includes a bush bearing comprising: a base member which has a cylindrical shape having no separated surfaces along the circumferential direction; and a lubricating member which is formed from a material having a lower rigidity and more excellent lubricity than the base member, and has a cylindrical shape having no separated surfaces along the circumferential direction by being integrally provided to the outer circumferential surface of the base member, wherein the cylindricity of the outer circumferential surface of the lubricating member satisfies a value that is within 0.6% of the average thickness of the lubricating member, and the lubricating member has carbon fiber contained in a resin base, wherein the carbon fiber has cut surfaces exposed on both ends of the lubricating member.

A ball bearing retainer holds balls disposed between an inner ring and an outer ring, in pockets formed at a plurality of portions, in a circumferential direction, of an annular body. The annular body includes: annular parts disposed on both sides in an axial direction; and pillar parts that are disposed at a plurality of portions in the circumferential direction and that connect between the annular parts. The pockets are formed by the annular parts and the pillar parts adjacent to each other in the circumferential direction, and allow ball guide. First contact portions of the pillar portions, which contact portions contact with the balls in the circumferential direction, are formed by first planes that extend along the axial direction, and the balls are guided by the first planes.

The bearing system includes a fluid bearing, a shaft with a solid portion, and a bush located around the solid portion and in front of pad or pads of the fluid bearing; the bush includes a hollow portion and a plurality of supporting elements that fix the hollow portion of the bush to the solid portion of the shaft.

A heat transfer system is disclosed that includes a circulation loop of a heat transfer fluid that comprises a halocarbon. The circulation loop includes a compressor or pump that includes bearing rolling surfaces in contact with the heat transfer fluid. The bearing contact surface has a substrate a layer thereon that includes a polymer or oligomer having polar side groups and a tribofilm.

A rolling bearing is disclosed which comprises an outer ring and an inner ring, wherein rolling elements are arranged between the outer ring and the inner ring, and wherein the rolling elements are spaced apart by a cage being arranged between the outer ring and the inner ring, wherein the cage is made of polymer containing reinforcing fibers, and the outer ring and/or the inner ring are steel rings with fine carbide precipitation.