A sliding member includes a metallic substrate, a porous layer formed on a surface of the metallic substrate, and a sliding layer that covers the porous layer. The porous layer is made of a metal itself or an alloy composition. The sliding layer is made of a lead-free resin composition. The resin composition contains an essential additive, optionally an optional additive, and a fluororesin. The essential additive is any one of a combination of a zinc compound and a carbon fiber, a combination of a zinc compound and an iron oxide, and a combination of a zinc compound, a carbon fiber and an iron oxide. A total content of the essential additive and the optional additive is 10 vol % or more and 35 vol % or less in the resin composition.

A method for producing a roller bearing may include threading a cam roller onto a bearing sleeve until the cam roller abuts a first axial flange of the bearing sleeve and inserting a counter holder into the bearing sleeve until the first axial flange of the bearing sleeve abuts a stop of the counter holder. The method may also include heating the bearing sleeve and forming an opposite second axial flange via inserting a forming punch into the bearing sleeve after heating the bearing sleeve. The second axial flange may be formed such that the cam roller is held in the bearing sleeve with radial play and axial play after the bearing sleeve cools down. The method may further include removing the forming punch and the counter holder from within the bearing sleeve.

A wheel bearing arrangement for a motor vehicle includes a wheel hub. The wheel hub is connected to a wheel flange. A multi-row rolling element bearing is mounted on the wheel hub. The bearing has an outer ring and at least one inner ring which is axially prestressed by a collar of the wheel hub. A zinc flake coating is formed on at least part of the wheel bearing arrangement to improve corrosion protection.

A method of coating a metallic component of a rolling-element bearing or a plain bearing having at least one non-sandblasted surface includes directly applying a first metal coating onto at least a portion of the non-sandblasted surface by a cold spray method, preferably at a pressure of more than 50 bar. Also a coated metallic component formed by the method.

A manufacturing method for a bearing device includes a first coating process of applying a coating all over an outer ring member solely, a removal process of, after the first coating process, removing part of the coating by machining the outer ring member for forming an outer raceway surface with which rolling elements come into rolling contact, an assembling process of assembling the coated outer ring member, an inner shaft member, the rolling elements, and a cage into an assembly, and a second coating process of applying a coating to a required portion of the inner shaft member in the assembly.

A sliding member includes a metallic substrate, a porous layer formed on a surface of the metallic substrate, and a sliding layer that covers the porous layer. The porous layer is made of a metal itself or an alloy composition. The sliding layer is made of a lead-free resin composition. The resin composition contains an essential additive, optionally an optional additive, and a fluororesin. The essential additive is any one of a combination of a zinc compound and a carbon fiber, a combination of a zinc compound and an iron oxide, and a combination of a zinc compound, a carbon fiber and an iron oxide. A total content of the essential additive and the optional additive is 10 vol % or more and 35 vol % or less in the resin composition.

A bearing for an internal combustion engine may include a steel support layer. A coating layer containing a Cu alloy may be laid over the steel support layer. A Ni-based anti-diffusion barrier layer may be laid over the coating layer, and an anti-friction layer containing a matrix of SnZn and Zn precipitates may be laid over the anti-diffusion barrier layer.

A method for producing a roller bearing may include threading a cam roller onto a bearing sleeve until the cam roller abuts a first axial flange of the bearing sleeve and inserting a counter holder into the bearing sleeve until the first axial flange of the bearing sleeve abuts a stop of the counter holder. The method may also include heating the bearing sleeve and forming an opposite second axial flange via inserting a forming punch into the bearing sleeve after heating the bearing sleeve. The second axial flange may be formed such that the cam roller is held in the bearing sleeve with radial play and axial play after the bearing sleeve cools down. The method may further include removing the forming punch and the counter holder from within the bearing sleeve.

High-strength brass alloy having superior wear maintains single-structure phase and FeCrSi-based intermetallic compounds dispersed in the phase. A high-strength brass alloy for sliding member comprises Zn from 17% to 28%, Al from 3% to 10%, Fe from 1% to 4%, Cr from 0.1% to 4%, Si from 0.5% to 3%, mass ratio, and the remnant including Cu and inevitable impurities. The high-strength brass alloy has structure in which the matrix shows single-phase structure of phase and FeCrSi-based intermetallic compounds are dispersed in the phase. The high-strength brass alloy for sliding member has the structure in which the matrix shows single-structure of phase and hard FeCrSi-based intermetallic compounds are dispersed in the phase. Thus the hardness is increased and wear resistance is improved.

Provided is a crown-shaped retainer (20), including: an annular base (22); a plurality of pockets (24) each penetrating the crown-shaped retainer in a radial direction thereof and having an opening (a) on one side of the crown-shaped retainer in an axial direction thereof; and a pair of prongs (26) positioned on both sides of the opening (a) of each of the plurality of pockets (24) in a circumferential direction of the crown-shaped retainer, the each of the plurality of pockets (24) having an inner circumferential surface including: a spherical portion (28) positioned on a radially inner side of the crown-shaped retainer; and a cylindrical portion (30) positioned on a radially outer side of the crown-shaped retainer, the cylindrical portion (30) having an inner diameter ( D2) larger than a ball diameter (dw).