Abstract: Provided is a rolling guide device which is capable of preventing uneven wear of a holding belt by alleviating a tensile force that acts on the holding belt when the holding belt circulates in an endless circulation path together with rolling elements. The endless circulation path has a guide groove configured to guide movement of the holding belt in the endless circulation path.

Abstract: A device for supporting and/or guiding a first structure that includes machines, instruments and/or structures in general, particularly for supporting and/or guiding a telescope, relative to a second structure, includes a sliding system with a slide block adapted to slide relative to the second or the first structure; for a fluid, a chamber that is separate from and independent of the sliding system and that includes a first portion fixed to the sliding system and a second portion adapted to be associated with the first or the second structure; a fluid circuit that is also separate from and independent of the sliding system and that communicates with the chamber to control the passage of the fluid into and from the chamber; and an elastic member housed in the chamber to absorb the oscillations between the first and the second portion.

Abstract: A bearing assembly (2) is provided, in particular for a turbomachine, including: an inner bearing race (3); an outer bearing race (4) having at least one cooling channel (15) formed within it or in its outer surface; rolling elements (7) made of ceramic and disposed between the inner bearing race (3) and the outer bearing race (4); and a surrounding bearing ring (9) connected to the outer bearing race (4) and configured to form a squeeze film (10) of oil between its outer surface and an opposite inner surface of a housing (1) in which the bearing assembly can be mounted.

Abstract: Invention provides gear pump bearing block and method of manufacturing gear pump bearing block. Bearing block includes a bush formed of antifriction alloy, bush having cylindrical portion providing bore adapted to receive bearing shaft of gear of pump, and further having flange portion extending radially outwardly at end of cylindrical portion to provide thrust face adapted to slidingly engage with side surface of gear. Bearing block also has backing layer covering radially outer surface of cylindrical portion and rear face of flange portion, backing layer being formed of less dense alloy compared to antifriction alloy. Furthermore, there is an annular gallery embedded in flange portion such that gallery is spaced from surface of bore and from thrust face, gallery surrounding bore, with inlet to and outlet from annular gallery such that, in use, fluid flows from inlet, through annular gallery to provide cooling of thrust face, and then to outlet.

Abstract: A radial roller bearing can include an outer race having as a center axis a first axis extending in a first direction and an inner race having as the center axis the first axis. A group of rollers composed of a plurality of rollers arranged at intervals in the circumferential direction can be centered on the first axis between the outer raceway surface of the outer race and the inner raceway surface of the inner race and a cage can be provided for holding the group of rollers. A first regulating part can be provided for regulating the movement of the outer race to one side. A second regulating part can be provided for regulating the movement of the outer race to another side. The first regulating part and the second regulating part can be arranged at positions at which the distance between the first regulating part and the second regulating part is a prescribed distance longer than the outer race.

Abstract: A non-locating bearing arrangement for supporting one side of a trunnion ring of a converter. The arrangement provides a toroidal roller bearing mounted in a split housing having top and bottom halves, an inner ring of the bearing mounted to a trunnion of the trunnion ring and an outer ring of the bearing mounted to a bore in the housing. A first spacer ring mounted in axial abutment between a first side part of the housing an opposing end face of the outer bearing ring; a second spacer ring mounted in axial abutment between a second side part of the housing and an opposing end face of the outer bearing ring. The first spacer ring has an axial width greater than an axial width of the second spacer ring, and the protrusion has a plane of symmetry that is parallel to and axially offset from the housing center plane.

Abstract: A foil bearing includes a bearing back, a foil arrangement, and a setting mechanism. The bearing back includes a passage opening configured to receive a shaft, such that a gap is formed between the shaft and the bearing back. The foil arrangement defines a first inner circumference and includes a first segment-shaped foil arranged in the gap adjacent to the bearing back, a second segment-shaped foil arranged in the gap adjacent to the first segment-shaped foil, and a third segment-shaped foil arranged in the gap between the shaft and the second segment-shaped foil. The setting mechanism is configured to set the first inner circumference.

Abstract: A bearing structure includes a heat dissipating fan using the same. The bearing structure comprises a body which has a first surface, a second surface, and an inclined grease guiding surface. The first surface is provided with a shaft hole penetrating through the body. The inclined grease guiding surface is sloped on the first surface. Two end edges of the inclined grease guiding surface individually connect the first surface and the shaft hole. The bearing structure disposed in the heat dissipating fan can prevent the grease from leaking and increase the storage capacity for the grease.

Abstract: A motor includes a frame including a first bearing holder, a stator, a first bearing held in the first bearing holder, a rotor rotatably supported by the first bearing, and a preload member generating a preload in a direction of an axis line of the rotor. The frame further includes a first frame part. The first frame part includes a support part supporting the preload member. An outer end part of the preload member faces the support part so as to be covered with the support part.

Abstract: Provided is a semi-cylindrical shaped half bearing. The half bearing has an inner surface forming a sliding surface and including a plurality of recesses. Each recess has a smooth recess surface and a peripheral edge. The recess surface forms a convex curve toward the outer diameter side of the half bearing in cross-sectional view in a direction parallel to a circumferential direction of the half bearing. The recess includes a groove forming zone adjacent to the peripheral edge of the recess. The groove forming zone includes a plurality of circumferential grooves. The circumferential grooves extend from the peripheral edge of the recess along the circumferential direction of the half bearing. The present invention also provides a cylindrical sliding bearing including the above half bearing.

Abstract: Provided is a sliding member, which is reduced in friction under sliding conditions of high load and high speed under an oilless condition, and is excellent in wear resistance. The sliding member includes: a shaft; and at least one intervening member, in which: the at least one intervening member is located between the shaft and a bearing, and is operable independently of the shaft; and at least one surface of the at least one intervening member on a shaft side includes a sliding surface under one of a radial load and an axial load.

Abstract: Sensor devices for a rolling bearing and roller bearings including said sensors are disclosed. The sensor device may include at least one sensor configured to connect to one bearing race in a manner fixed against relative rotation. At least one signal transmitter may be configured to connect to the other of the bearing races in a manner fixed against relative rotation. The sensor device may further include an outer ring configured to be fastened on an end face of the outer race of the rolling bearing and an inner ring configured to be fastened on an end face of the inner race of the rolling bearing. The sensor and the signal transmitter may be arranged on mutually opposite lateral surfaces of the outer and inner rings.

Abstract: The invention provides a gear pump bearing block and method of manufacturing gear pump bearing block. Bearing block includes bush formed of antifriction alloy, having a cylindrical portion providing bore adapted to receive bearing shaft of a gear of pump, and further having a flange portion extending radially outwardly at end of cylindrical portion to provide thrust face adapted to slidingly engage with side surface of gear. Bearing block also has backing layer covering radially outer surface of cylindrical portion and rear face of flange portion, backing layer being formed of relatively less dense alloy compared to antifriction alloy. Furthermore, there is an annular formation of one or more stiffening members, formation surrounding bore, the, or each, stiffening member being embedded in flange portion, and the, or each, stiffening member being formed of material having higher elastic modulus than antifriction alloy.

Abstract: A linear slide rail includes a rail having four primary grooves respectively defined in two opposite sides of the rail. A first slide includes a first passage, and each of two opposite insides of the first passage has two first grooves. Multiple first balls contact the primary grooves and the first grooves. Each of the first grooves has a first contact angle. When a first wearing trace is formed along the rail by the first balls and the first slide, the first slide and the first balls are replaced with a second slide and multiple second balls. Each of the second grooves of the second slide has a second contact angle which is different from the first contact angle. A second wearing trace is formed along the rail by the second balls and the second slide. The first and second wearing traces are not overlapped with each other.

Abstract: A bearing ring with integrated cooling channels and a method for producing a bearing ring with integrated cooling channels are provided.

Abstract: A thrust control assembly for use in a horizontal pumping system includes a thrust bearing chamber that is filled with a fluid lubricant, a thrust bearing assembly contained within the thrust bearing chamber, a first radial bearing chamber, a first radial bearing assembly contained within the first radial bearing chamber and a first metering assembly. The first metering assembly controls the flow of lubricant from the thrust bearing chamber to the first radial bearing chamber. The first metering assembly may include an orifice plate.

Abstract: A method of electrodynamically finishing a plain bearing includes electrically separating a bearing housing from a journal shaft with a lubricant disposed on a bearing surface of the bearing housing. The bearing housing or the bearing housing is rotated relative to the other and a voltage differential applied across the bearing housing and the journal shaft. One or more asperities disposed on the bearing surface are eroded with electric discharge events between the journal shaft and the bearing housing. Electrodynamically finished bearing assemblies and reaction/momentum wheel arrangements having such bearing assemblies are also described.

Abstract: A wheel bearing for a motor vehicle is provided with an outer ring, an inner ring arranged at least partially inside the outer ring, and with a longitudinal axis extending in the axial direction of the outer ring and of the inner ring from a vehicle inner side to a vehicle outer side. The inner ring is provided with a flange section on its end facing the vehicle inner side having a first section at the point that is farthest from axial center of the outer ring, and with a second section which forms a contact surface for attaching a brake disk. The flange section is formed stepped in such a way, so that the contact surface for attaching the brake disk is arranged offset relative to the section of the flange section at the farthest point from the axial center of the outer ring in the axial direction toward the vehicle inner side, and so that an at least a partially circumferential projection is located on the side opposite the contact surface for attaching the brake disk.

Abstract: A rolling bearing includes a stationary radially outer ring, a groove, at least a rotatable radially inner ring, at least a plurality of rolling bodies, interposed between the radially outer ring and the radially inner ring and a grease dispenser device configured to be accommodated within the groove of the radially outer ring. The dispenser device is further provided with a radially outer crown on which at least a radially inner protrusion is rigidly fixed, the protrusion having a barrier function against a flow of grease.

Abstract: A thrust roller bearing cage (11) includes a thrust roller bearing (20) and a plurality of pockets (21) accommodating rollers (13). The thrust roller bearing cage (11) includes: a first cylindrical portion (36) extending in a direction of a rotation axis (12); a first disc portion (31) continuous with the first cylindrical portion (36) and extending in a radially outward direction; and a second cylindrical portion (37) continuous with the first disc portion (31) and extending in the direction of the rotation axis (12). The first cylindrical portion (36), the first disc portion (31), and the second cylindrical portion (37) are formed in an area located radially inside the pockets (21). The first disc portion (31) has a through hole (53).