A ball bearing for the scroll of a scroll compressor, having an outer race, an inner race and a plurality of balls disposed therebetween, characterized in that the balls are held and guided in a ball bearing cage, wherein the ball bearing cage is formed as an externally guided plastic cage with a reinforcing structure made of metal as a hybrid cage.

A sliding component may include an overlay comprising a polymeric material and a metal oxide. The metal oxide may have a thermal conductivity of greater than about 1.5 Wm.sup.1K.sup.1, and a Mohs hardness of between about 5 and about 7. The sliding component may be a sliding component for an engine, such as a bearing, a bearing shell, a bush, a thrust washer, a journal bearing or the like.

A bearing material may include a polymeric matrix of polyamide-imide (PAI) polymer material and a plurality of melamine cyanurate particles dispersed within the polymeric matrix.

Anti-friction composite material having: (A) polyimide substrate and (B) a coating layer containing a binder resin and a solid lubricant.

Disclosed herein is a sliding member, such as a sliding bearing, including a resin overlay layer having improved conformability. The sliding member includes a bearing alloy layer and a resin overlay layer formed on the bearing alloy layer, wherein the resin overlay layer includes a solid lubricant phase, a binder resin phase, and a cushion phase, and an area ratio of the cushion phase is 0.5% or more but 5.0% or less.

A thrust sliding bearing may include a thrust receiving surface comprising radial oil grooves, and a resin portion, the resin portion comprising a plurality of resin sheets in an area defined by the oil grooves of the thrust receiving surface, the plurality of resin sheets being laminated. Circumferential widths of the plurality of resin sheets may increase upwardly from a bottom resin sheet. A circumferential width of the resin portion may decrease upwardly.

The invention relates to a plain bearing composite material, comprising a supporting layer (12) made of steel, a bearing metal layer (14) made of copper or a copper alloy, which is applied to the supporting layer (12), and a functional layer (16) made of aluminum or an aluminum alloy, which is applied to the bearing metal layer (14).

A bearing element may include a bearing element substrate and a sliding layer applied to a surface of the bearing element substrate. The sliding layer may be formed of a sliding layer material. A surface roughness (Ra) of the surface of the bearing element substrate may be less than 1 m. The sliding layer material may include a polymeric material and iron oxide. The sliding layer may have at least three layers of the sliding layer material.

Swash plate 3, which is a sliding member, includes base material 31, and coating layer 31 that is formed on base material 31 and has a thickness of 10 m or more. Coating layer 31 includes binder resin 321 and solid lubricant 322, which is dispersed in binder resin 321 and has a c-axis orientation, and a relative c-axis intensity ratio of solid lubricant 321 in coating layer 32 is 80% or more.

A bearing material may include a polyamide/imide plastics polymer material having an amine content including a fluorinated diamine and a non-fluorinated diamine.