Provided is a sliding member capable of realizing the wear resistance effect by Si particles. The sliding member includes an aluminum alloy layer containing 7.0% by mass or more and 13.0% by mass or less of Sn, 6.5% by mass or more and 12.0% by mass or less of Si, 0.5% by mass or more and 3.0% by mass or less of Cu, unavoidable impurities, and a balance Al. Si particles are dispersed in the aluminum alloy layer. A Vickers hardness of a matrix of the aluminum alloy layer is 40 HV or more and 60 HV or less. A load resistance value, which is a product of a volume concentration and average area of the Si particles and the Vickers hardness of the matrix, is 0.00001 N or more and 0.00029 N or less.

A cage for a ball bearing, including: a first annular flange; a second annular flange; a plurality of ball retention segments; and a plurality of spaces. Each ball retention segment includes: a first portion fixedly connected to the first annular flange; a second portion fixedly connected to the second annular flange; and, a middle portion connecting the first portion and the second portion. Each space is circumferentially bounded by a respective pair of circumferentially adjacent ball retention segments, and arranged to receive a ball of the ball bearing. A cross-section, including the first annular flange, the second annular flange, and a ball retention segment of the plurality of ball retention segments, is in a shape of an M.

The sliding member includes an aluminum alloy layer containing 7.0% by mass or more and 13.0% by mass or less of Sn, 6.5% by mass or more and 12.0% by mass or less of Si, 0.5% by mass or more and 3.0% by mass or less of Cu, unavoidable impurities, and a balance Al. Si particles are dispersed in the aluminum alloy layer. A Vickers hardness of a matrix of the aluminum alloy layer is 40 HV or more and 60 HV or less. A load resistance value, which is a product of a volume concentration and average area of the Si particles and the Vickers hardness of the matrix, is 0.00001 N or more and 0.00029 N or less.

A cage for a ball bearing, including: a first annular flange; a second annular flange; a plurality of ball retention segments; and a plurality of spaces. Each ball retention segment includes: a first portion fixedly connected to the first annular flange; a second portion fixedly connected to the second annular flange; and, a middle portion connecting the first portion and the second portion. Each space is circumferentially bounded by a respective pair of circumferentially adjacent ball retention segments, and arranged to receive a ball of the ball bearing. A cross-section, including the first annular flange, the second annular flange, and a ball retention segment of the plurality of ball retention segments is in a shape of an M.

A cage for a thrust roller bearing is provided. The cage has first and second cage members each having an outer ring portion formed radially outside of a roller retention hole. The outer ring portion has a flange portion that extends, from a radially outer end of the outer ring portion, in an axial direction and is divided along the circumferential direction. The flange portion has a large diameter portion and a small diameter portion. The first cage member and the second cage member are fastened to each other while the large diameter portion and small diameter portion of the first cage member overlap the small diameter portion and large diameter portion of the second cage member, respectively.

A roller bearing for rotationally mounting a high-speed shaft, such as a shaft for a turbocharger, includes a cage. The cage has two rings and a plurality of connecting elements and cavities for the rolling bodies. The connecting elements extend axially between the cage rings, and the cavities are located between the connecting elements. The cage is made from a metallic material and is formed according to a shaping method, wherein two tangentially adjacent ends of the cage are interconnected in a material fit.

An axial needle bearing includes a sheave and a cage. The sheave includes a radially outer sheave section having a rolling body race, a connecting angled thrust rib, and a ring section which is connected to the thrust rib and axially offset with respect to the sheave section. The disc-like cage retains bearing needles in pockets rolling on the rolling body race. The cage is fixed in position axially by a plurality of retaining sections extending radially from the ring section over the thrust rib and engaging over the cage, beneath each of which retaining sections a recess is provided in the sheave. The recesses beneath the retaining sections have a U-contour as they are worked into the sheave and are designed to extend with the web of the U-contour into the sheave section and with the ends of the U-contour into the ring section.

A connecting rod for an internal combustion engine with variable compression, the connecting rod including an eccentrical element adjustment arrangement configured to adjust an effective connecting rod length, wherein the eccentrical element adjustment arrangement includes an eccentrical element that cooperates with an eccentrical element lever and supports rods that engage the eccentrical element lever, and wherein the eccentrical element lever is integrally configured in one piece as a stamped and bent component or fabricated by a massive cold forming method.

A method for manufacturing a bearing cage includes providing a bearing cage blank made from a metal plate, the cage blank including a cylindrical flange extending from a disk-shaped wall, punching a plurality of first openings through the cylindrical flange in a first direction to form a plurality of snap surfaces, and punching a plurality of second openings through the cylindrical wall in a second direction opposite the first direction to form a plurality of pockets. The second openings intersect at least two of the first openings, and punching the pockets removes a body of material from between the at least two of the first openings. Also a bearing cage formed by the method.

The method includes: the step of preparing a steel material and a work portion; the step of placing the steel material on the work portion; and the steps of obtaining the rolling bearing ring by heating the steel material on the work portion to a temperature equal to or higher than an A.sub.1 transformation point, thereafter punching a part of the steel material into a ring shape, and thereafter quenching the steel material in a ring shape on the work portion. In the step of obtaining the rolling bearing ring, heating and punching are performed in the state where oxidation of the steel material is suppressed, and in the state where tensile force is applied between the first portion and the second portion in the steel material.