Abstract: A cage segment for a rolling bearing, in particular a taper roller bearing, includes: two side plates; at least two bridges connecting the two side plates; a complete rolling element pocket being between each pair of bridges; and an incomplete rolling element pocket formed by regions of the two side plates which project beyond the bridges in a circumferential direction of the cage segment. Two end faces of each side plate are contoured differently, in particular are convex in one case and flat in the other case.

Abstract: An anti-friction radial bearing has an inner track, an outer track, a pair of extension members, load-carrying rolling members, and double coaxial, cylindrical individual spacers. Each of the extension members has an internal cylindrical hoop surface and is securely mounted to at least one of the inner and outer tracks. The rolling members are equidistantly spaced and rotatably engageable with the inner and outer tracks. The spacers are disposed in pure rolling contact at their ends with the internal cylindrical hoop surfaces of the extension members. Each of the spacers is positioned in pure rolling contact between a corresponding adjacent pair of the rolling members.

Abstract: A cage segment of a rolling bearing, which cage segment has two side plates and two webs which are fixedly connected to one another, wherein the webs extend parallel to the axis of rotation of the rolling bodies of the rolling bearing, and in which cage segment the side plates and the webs form a pocket for receiving a rolling body. In order to be able to produce and assemble a cage segment of said type in an inexpensive manner, and in order to be able to ensure operation without jamming in an associated rolling bearing, it is provided that the two side plates on both sides of the pocket extend in a circumferential direction of the rolling bearing to such an extent that the side plates together with in each case one of the two webs form in each case one half-pocket for receiving a directly adjacent rolling body.

Abstract: A roller bearing comprises an outer ring, an inner ring, a plurality of rollers arranged between said outer ring and said inner ring; and a plurality of retainer segments having a plurality of column parts extending in a direction along a shaft so as to form a pocket for holding said roller. A connection part extends in a circumferential direction so as to connect the plurality of column parts, and continuously lined with each other in the circumferential direction between said outer ring and said inner ring, in which a corner of a circumferential end face is chamfered. Also provided is a spacer arranged between the circumferentially arranged first retainer segment and last retainer segment, wherein a chamfered part is provided at a corner of a circumferential spacer end face of the space. The roller bearing can be used in a main shaft support structure of a wind-power generator.

Abstract: A roller assembly for a diesel engine used in a high mileage vehicle includes a roller having an exterior roller surface and an interior surface that defines a bore extending therethrough. A pin is positioned in the bore and defines an exterior pin surface. A plurality of rolling elements is positioned between the exterior pin surface and the roller interior surface. Each of the rolling elements rollingly engages the exterior pin surface and the roller interior surface. The roller assembly defines a clearance of between about 0.01 mm to about 0.03 mm between the rolling elements, the exterior pin surface and the interior surface. The roller assembly is configured to achieve extended life criteria wherein the clearance does not increase to more than 0.02 mm to 0.06 mm after 500,000 miles of travel of a vehicle powered by a diesel engine having the roller assembly installed therein.

Abstract: A bearing comprises an inner race defining an inner track, an outer race defining an outer track, and a compound roller assembly interconnecting the inner and outer races for relative rotation between the inner and outer races. The compound roller assembly includes a plurality of first rollers and a plurality of second rollers. The first and second rollers respectively contact the inner track of the inner race and the outer track of the outer race for rolling contact therewith. Each of the first rollers contacts at least one of the second rollers such that the first and second rollers rotate in opposite directions during relative rotation between the inner and outer races.

Abstract: The invention relates to a radial roller bearing, having an outer bearing ring and an inner bearing ring, and rolling bodies located between the rings. Some of the rollers are formed by individual hollow rollers of a shape memory alloy. The cross-section of the shape memory alloy rollers is deformed during the assembly of the radial roller bearing to fit the dimensions of the free space between the rims of the rings. The rollers are introduced into the radial roller bearing through the free space between the rims of the bearing rings. After introduction into the radial roller bearing and once they have reached a specific temperature, the rollers independently regain their original shape.

Abstract: A needle bearing is designed for a high speed drill or MDA surgical instruments that include alternate rollers made from metallic and plastic or synthetic material mounted in the bore of the housing of the drill or MDA and the shaft being supported by the needle bearing. The inner race, outer race and/or cage may be eliminated from the assembly.

Abstract: Disclosed herein is a bearing assembly comprising: an outer race having an inner surface; an inner race having an outer surface, the inner surface of the outer race and the outer surface of the inner race defining a bearing assembly raceway; a plurality of main rollers positioned within the bearing assembly raceway, the main rollers in contact with the inner surface of the outer race and the outer surface of the inner race; a plurality of mediate rollers positioned within the bearing assembly raceway counter-rotating with the main rollers such that each of the mediate rollers is in rolling contact with a pair of the plurality of main rollers; and a cage positioned in the bearing assembly raceway for at least partially bounding each of the mediate and main rollers.

Abstract: A needle bearing is designed for a high speed drill or MDA surgical instruments that include alternate rollers made from metallic and plastic or synthetic material mounted in the bore of the housing of the drill or MDA and the shaft being supported by the needle bearing. The inner race, outer race and/or cage may be eliminated from the assembly.

Abstract: The present invention relates to a purely rolling bearing without cage member and sliding friction, comprising an inner race ring, an outer race ring, a number of rolling members provided between the inner and outer race rings, a number of positioning rolling members and two positioning rings. Every positioning rolling member is provided between two adjacent rolling members and contact therewith. The positioning rings are positioned on the slide way at two ends of the said positioning rolling members and keep rolling contact therewith.

Abstract: A roller bearing having a central axis comprising an inner race having a first race track; an outer race disposed concentrically around the inner race with respect to the central axis and having a second race track facing the first race track; and a plurality of rolling bodies disposed between the inner race and the outer race for rolling against the first race track and the second race track. Each of the plurality of rolling bodies has a fixed axis of rotation about which each of the rolling bodies rotates, each of the rolling bodies being rotatably attached to the roller bearing such that the fixed axis of rotation about which each of the rolling bodies rotates remains substantially parallel to the central axis of the roller bearing.

Abstract: A clamping apparatus includes upper and lower platens; one or more tiebars for connecting the platens; an intermediate platen provided between the upper and lower platens for movement relative to and along the tiebars. Upper and lower mold halves are provided on the upper and intermediate platens, respectively. A linkage is provided for connecting the lower and intermediate platens. The linkage includes upper and lower links connected with each other for rotation on an intermediate shaft. The upper and lower links are pivotably supported on first and second shafts fixed on the intermediate and lower platens, respectively. The intermediate shaft is operatively connected with the drive mechanism so that the mechanism transmits a driving force to the linkage, so that the lower platen is moved relative to the intermediate platen. A set of radial needle bearing and thrust bearing is used for at least one of the intermediate, first and second shafts.

Abstract: A cylindrical roller bearing includes a plurality of cylindrical rollers disposed between a circular outer race and a circular inner race without using a retainer. The inner and outer races are devoid of annular flanges extending radially from opposite axial ends of the races for controlling the position of the cylindrical rollers in an axial direction. A pair of thrust bearing plates are disposed on the opposite sides of the outer race for controlling the positions of the outer race and the cylindrical rollers in the axial direction. One or more of the cylindrical rollers are formed shorter than the other cylindrical rollers. With this arrangement, a skew of one or more of the cylindrical rollers, which may occur when the outer race is subjected to an axial load, is taken up by circumferential gaps formed between the shorter cylindrical roller and adjacent cylindrical rollers at opposite ends of the shorter cylindrical roller.

Abstract: Friction in a traction drive assembly having counter-rotating races interconnected by drive balls captured by a stationary retainer is substantially reduced, and the life of the assembly is substantially extended, by interposing rolling interface elements between the drive balls and the retainer. The interface elements may take the form of balls, pins or wheels, and separate lubricating means for them may be provided.

Abstract: A rolling bearing in which a plurality of rolling members are interposed between an outer race and an inner race, further comprising: a plurality of generally cylindrical rolling retainers, one disposed between each adjacent pair of the rolling members to keep them apart, each comprising a pair of annular grooves provided adjacent to either axial end thereof and a pair of circular flanges provided at either axial end thereof; a pair of cover members, one located at each axial end of the rolling bearing and mounted to one of the two races to define a support rail coaxial with the rolling bearing, each of the support rails having a circumferential surface on the one radial side thereof on which the rolling retainers roll at their circular flanges; a pair of free rings, each having a circumferential surface on the other radial side thereof on which the rolling retainers roll at their annular grooves; and a lubricant ejection hole extending in an axial end portion of at least one of the rolling retainers from an

Abstract: This rolling bearing includes an inner race, an outer race, rolling members--either balls or rollers--disposed between these races and rotatably supporting them relative to one another, and generally cylindrical retainers disposed between these rolling members, each rolling on its two adjacent rolling members and keeping them apart. Each retainer has an axially central portion rollingly contacting with these two adjacent rolling members, a pair of circumferential grooves each near one of its ends, and a pair of disk shaped end portions each near one of its ends. These retainers are positioned by their disk shaped end portions rolling on the one radial sides of support rails defined on a pair of covers mounted each at one axial end of one race, and by their grooves being engaged over the other radial sides of free rings each at one bearing axial end. The retainers either may roll on the radially outer sides of the rails and on the radially inner sides of the rings, or vice versa.