549results about "Shaft assembly" patented technology

The present invention pertains to a wear pad for a telescopic boom of a work machine, comprising a base part configured to be fixedly mounted to the telescopic boom, and a top layer part configured to provide a wear-resistant, low friction sliding surface. The top layer part is configured to be releasably mounted to the base part. The invention further pertains to a telescopic boom assembly for a work machine, comprising a first boom segment having at least one first wear pad assembly mounted to a free end of the first boom segment, and a second boom segment having at least one second wear pad assembly mounted to a sliding end of the second boom segment, wherein at least one of the wear pad assemblies comprise a wear pad having a base part and a top layer part configured to provide a wear-resistant, low friction sliding surface. The top layer part is configured to be releasably mounted to the base part. Further, the present invention pertains to a work machine comprising such telescopic boom assembly.

A linear motion guide apparatus that is easily assembled is provided. The linear motion guide apparatus includes: two guide rails that are movable relative to each other in a longitudinal direction thereof via at least one rolling element; and a cage configured to hold the rolling element and hold a gear engaging with a meshing portion provided to at least one of the two guide rails. The cage includes: a first split body in which a rolling element holding portion that holds the rolling element and a gear holding portion that holds the gear are integrally formed; and a second split body in which a rolling element holding portion that holds the rolling element and a gear holding portion that holds the gear are integrally formed. The first split body and the second split body are joined to each other.

The invention discloses a needle mounting device, and relates to the technical field of retainer needle mounting. A needle installing device comprises a reciprocating driving part, a belt rotating part connected to the reciprocating driving part, a pressing die connected to the belt rotating part and a matching die arranged opposite to the pressing die, the matching die is provided with a containing groove used for containing a retainer, and the matching die is further connected with a needle feeding machine communicated with the containing groove. The radial driving-in device can efficiently complete radial driving-in of the roller pins.

A rolling bearing is provided which includes a cage (3) including two annular members (11) each including (i) pocket walls (9) each having a recess, and (ii) connection plates (10) circumferentially alternating with the pocket walls (9), and each coupling together corresponding ones of the pocket walls (9), the two annular members (11) being axially opposed to each other such that pockets (2) are circumferentially defined by the recesses of the pocket walls (9) of the two annular members (11); an inner ring (5) having an inner ring raceway surface (4) on an outer peripheral surface of the inner ring (5); an outer ring (7) disposed on an outer peripheral side of the inner ring (5), the outer ring (7) having an outer ring raceway surface (6) on an inner peripheral surface of the outer ring (7); and balls (8) interposed between the inner ring (5) and the outer ring (7), the balls (8) being retained in the respective pockets (2), which are defined in the cage (3), wherein spherical portions (17) are formed on the respective pocket walls (9) of the two annular members (11), the spherical portions (17) being out of contact with the balls (8) in a state where the balls (8) are in abutment with circumferential ends of the pockets (2).

A rolling bearing, in particular a ball bearing, is in the form of two bearing rings that are mounted so as to be rotatable relative to each other about an axis. The roller bearing includes an inner ring and an outer ring which each form a guide portion of a guide. The guide portion surrounds the axis with the portion formed by the inner ring is radially opposite the portion formed by the outer ring. In the guide, rolling bodies are distributed around the axis and rest on the two guide portions. When the bearing rings rotate, the rolling bodies roll on the two guide portions. At least one of the rings has a slide ring as the guide portion and a stabilising ring on the slide ring. The slide ring and the stabilising ring are produced from first and second plastics materials, respectively. The first plastics material is softer than the second plastics material.

The casing (10) of a support assembly for food applications has a housing portion (20) having a through-seat (25) within which a bearing unit is seated. The casing has a flange portion (30) for fixing the casing to a machine. The flange portion has a base surface (35) and at least two through-holes (32) for housing elements for fixing the casing to the machine. The casing has at least two metal bushings (40), equal in number to the number of through-holes, housed stably inside respective through-holes and coaxial with them. The casing has at least two spacers (50), equal in number to the number of through-holes, applied on the base surface of the flange portion opposite the respective through-holes. The casing has at least two inserts (60), equal in number to the number of spacers, and housed with interference inside the respective metal bushings and inside the respective spacers.

Disclosed is an axle (1) for supporting at least one bearing component (2, 4), wherein: the at least one bearing component is arranged circumferentially around the axle; the axle system consists of at least two axle segments (6, 8) arranged behind one another in the axial direction; at least one of the two axle segments has an axial through-bore (10) and the other of the two axle segments has an axial blind bore or an axial through-bore (12); the at least two axle segments are coupled to one another by means of a bolt (14) arranged in the axial through-bore and the axial blind bore or in the axial through-bore; each of the at least two axle segments has a circumferentially arranged stop element (36, 38); the at least one bearing component is arranged between the stop elements; and the bolt is designed to exert a preload on the at least one bearing component via the stop elements.

The invention relates to a valve device for installing on the outlet of a sanitary fitting, comprising a sleeve-shaped valve part (1) for securing to the outlet (13) of the sanitary fitting, said valve part comprising a blocking element (4) which is movably arranged in the interior of the valve part (1) and which can be moved from a closed position for an in-flowing liquid flow to an open position for conducting the liquid flow by means of a cam (10) that is secured to a shaft (3) of an actuation element (9), wherein the shaft (3) crosses the valve part (1) and is rotatably mounted on the valve part (1) by means of the actuation element (9). According to the invention, the valve part (1) has two diametrically opposed and axially running slots (8), and a sleeve part (2) is provided which comprises two diametrically opposed, radially protruding webs (7) that run in the axial direction of the sleeve part (1) and can be inserted into the slots (8) of the valve part (1) in a precisely fitting manner. The valve part (1) and the inserted sleeve part (2) leave open radial openings which form the rotary bearing of the shaft (3). In this manner, a mechanically simple device is facilitated for saving water.

The invention relates to an adjusting device (10) for a vehicle part that can be moved relative to a body of a vehicle, in particular a door or a hood, comprising a housing (24) with a carriage device (26), the carriage device (26) being displaceable between a first position and a second position, an adjusting element (28), which is displaceable between a first position and a second position, the invention relates to a carriage device (26) for a vehicle, comprising an adjusting element (52) which is connected at one end to the carriage device (26) and which has, at a free end opposite the carriage device (26), an articulation opening (52) which is designed to be arranged on a body of the vehicle or on a vehicle part which can be moved relative to the body, the articulation opening (52) having an articulation opening insert (60) which is inserted into the articulation opening (52). The hinge hole insert surrounds a hinge hole (52) of the adjusting element (28) on the inner side and comprises a bolt receptacle (60A) for a hinge bolt (54).

A cage segment (1) for a multi-part rolling bearing cage (30), in particular for large rolling bearings, is disclosed, characterized in that in a preliminary stage of production the cage segment (1) is available as a kit consisting of one or more flat sheet metal components (4), wherein the sheet metal components (4) are designed to be assembled to form the cage segment (1), wherein the cage segment (1) in its assembled form has at least one joining point (6) at which two ends of the sheet metal components (4) are joined to form a pocket (2) suitable for receiving at least one rolling element (32).

An assembly of a gas turbine engine, having: a shaft having a shaft outer surface and a shaft inner surface, the shaft axially extends from a shaft forward end to a shaft aft end, the shaft forward end defines axially extending shaft slots that are circumferentially spaced apart from each other; a bearing having a first race, the first race is ring shaped with a first race outer surface and a first race inner surface, the first race is sized so the first race inner surface fits around the shaft outer surface, the first race extends axially from a first race forward end to a first race aft end, the first race forward end defines radially inwardly extending bosses that are circumferentially spaced apart from each other and aligned with ones of the axially extending slots of the shaft forward end, rotationally fixing the first race against the shaft.

A sliding member includes a cylindrical metal substrate, a seamless porous layer formed on the inner peripheral surface of the metal substrate, and a sliding layer covering the porous layer, wherein the porous layer is formed of a metal simple substance or an alloy composition, and the sliding layer is formed of a resin composition.

The present invention provides a bearing device that improves the ease of installation of fastening members and suppresses the occurrence of bearing malfunctions caused by improper posture of fastening members. [Solution] The bearing device comprises an inner ring, an outer ring, and a plurality of rolling elements arranged between the inner ring and the outer ring, wherein the inner ring has an annular portion and an extension portion that protrudes axially from the inner diameter end face of the annular portion and has an axial slit formed therein, and a clamping member that is fitted onto the extension portion and clamps and fixes the extension portion to the shaft. A stepped portion is provided at the inner diameter end of the clamping member on the bearing side, into which the outer diameter end of the annular portion can be fitted.

To manufacture a retaining flange (20) intended to fit into a groove (22) of an outer ring (14) of a bearing (12), from a metal plate (37) having a plate thickness measured between a front face (201) and an opposite rear face (202) of the metal plate (37), at least two steps are carried out. By penetrating a first tool (40), along a reference axis (1) perpendicular to the plate (37) and in a penetration direction (A) from the front face (201) to an intermediate depth less than the plate thickness (37), material initially located inside a front geometric envelope (41) is displaced into a volume located axially between the intermediate depth and the rear face (202) of the retaining flange (20), and delimited by a roughing geometric envelope (39).Then, by penetration of a second tool (42) along the reference axis (1) and in the direction of penetration (A), the plate (37) is perforated to form a final bore (24) having a rear geometric envelope (43) located, in projection onto a plane perpendicular to the reference axis (1), radially inside the front geometric envelope (41) and outside the roughing geometric envelope (39).

The invention relates to a wheel bearing unit (1) for supporting a vehicle wheel, comprising a wheel hub (2) and a rolling element bearing unit (3), wherein the rolling element unit (3) comprises at least two rows of rolling elements (4) which are provided between an outer ring (5) and the wheel hub (2) or an inner ring (6), wherein the wheel hub (2) forms a receptacle (2a) for the inner ring (6), and wherein the inner ring (6) has a first end face (6a), a second end face (6b) and an axial surface (6c) connecting the first and second end faces (6a, 6b), wherein the first end face (6a) of the inner ring (6) extends obliquely in a radial direction (R) perpendicular to the central axis (M) of the wheel bearing unit (1).

Bearing arrangement (1), comprising a bearing journal (5) for rotationally fixed arrangement on a first housing part (3). The invention further relates to a side channel compressor (27) and a fuel cell system (2) with a bearing arrangement (1) according to the invention.

The application discloses a PEEK gear assembly for an ultrahigh rotation speed environment, comprising a gear, the center of the wheel body of which is provided with an inner hole; a shaft sleeve which is fixed in the inner hole of the gear in an interference fit; a plurality of first grooves are arranged on the hole wall of the inner hole of the gear and pass through from one end to the other end, and are used for providing a redundant space for thermal deformation of the gear at high temperature. Compared with an alloy gear with the same performance, the weight of the PEEK gear assembly is light, and the noise energy level is reduced by 15%-23%. The inner hole of the carbon fiber modified PEEK material gear is processed into a sinusoidal wave, and the redundant space for thermal deformation is provided; the micro-channel design of the shaft sleeve brings high cooling efficiency at high rotation, and the cooling efficiency is increased by more than 50% when the rotation speed is higher than 20,000 rpm; compared with a traditional straight hole flow channel, the centrifugal force generated by the micro-channel design of the ceramic shaft sleeve is self-adaptive topology, a lubricating oil film is formed on the surface of the micro-structure of the ceramic porous structure, and friction vibration noise is reduced.

A ball-joint assembly (34, 36, 38) of a crank (30, 32) and a connecting rod (26, 28) of a windshield wiper module, comprising a crankpin (40) fixed to the crank (30, 32) and a ball-joint housing comprising a socket (42) being arranged to receive the crankpin (40), said socket (42) being fixed in an opening (46) of an end of the connecting rod (26, 28), wherein the socket (42) is made in two parts (48, 50) assembled one with the other with a first part (48) being overmolded on the opening (46) of the end of the connecting rod (26, 28) and a second part (50) being fitted on the crankpin (40), said first part (48) having a hole (49) configured to receive the second part (50).

The present invention relates to a mounting arrangement for the articulated mounting of an actuator (10) in a positioning device (9). In order to enable a simpler production and mounting process and in particular to facilitate an exchange of actuators in an existing construction or installation of the positioning device, the mounting arrangement comprises a joint device (8), a bearing (2) supporting a part or an element of the joint device (8), and a bearing seat (1) detachably connected to the bearing (2). Further aspects of the invention relate to a positioning device having such a mounting arrangement and to a device for producing such a mounting arrangement.

A bearing unit (30) has a central axis (X) of rotation and a retaining cage (40) for a plurality of rolling bodies (34) interposed between a radially outer ring (31) and a radially inner ring (33). The retaining cage (40) has a plurality of movable sectors (50) that are made of polymeric material, are identical to one another, and are arranged circumferentially adjacent to one another. Each movable sector (50) has at the ends a first engagement portion (51) and a second engagement portion (52) that are configured to define a dovetail joint between the first engagement portion (51) of a first movable sector (50′) and the second engagement portion (52) of a second movable sector (50″), circumferentially adjacent to the first movable sector (50′) to create a circumferential and radial constraint as well as a degree of axial freedom between the two movable sectors (50′, 50″).

The invention provides a ball joint capable of improving rigidity of a columnar part and a method for manufacturing the ball joint. A ball joint (100) is provided with a columnar section (110) and a housing (120). The columnar section (110) is provided with: a connection section (111) that is connected to an object to be connected (10); a flange-shaped receiving part 115 on which the object 10 to be connected is placed; and a ball part 114 having a spherical surface. A male thread part 112 for fastening the mounting nut 12 is formed on the connecting part 111. The flange-shaped receiving section (115) is formed so as to protrude radially outward from the connecting section (111) in a flange-shaped manner. A surface hardening layer 118 for hardening the surface layer is formed at a boundary portion 117 between the connecting portion 111 and the flange-shaped receiving portion 115.

The present invention provides a locking device for a rolling bearing comprising an inner ring, an outer ring and rolling elements between them, characterized in that the locking device comprises: an inner shoulder, wherein at least a portion of an inner surface of the inner shoulder is suitable for mounting on an outer surface of the rotating shaft and at least a portion of an outer surface of the inner shoulder defines a first contact surface; an outer shoulder, wherein at least a portion of an inner surface of the outer shoulder defines a second contact surface and at least a portion of the outer surface of the outer shoulder is suitable for contacting an inner surface of the inner ring;a bolt configured to lock the inner and outer shoulders in the axial direction such that the first and second contact surfaces are firmly in contact, and such that the inner shoulder can lock the rotating shaft and the outer shoulder can lock the inner ring of the rolling bearing. The present invention also provides a rolling bearing and a rotating shaft assembly comprising the locking device described above. The locking device has advantages such as simple assembly, no damage to the rotating shaft, a high degree of concentricity during assembly, and high locking force.

The invention relates to an assembly (1, 2) comprising a pin (2) and a crank (1), in particular for a turbocharger, the crank (1) having a bore (12) in which a connecting portion (21) of the pin (2) for connecting the pin (2) with the crank (1) is fixed by an interference fit, wherein the bore (12) has a substantially circular cross-section and the connecting portion (21) has a circular cross-section, the cross-section of the bore (12) deviating from the circular shape at at least one location (121) and being larger than the cross-section of the connecting portion (22) at this location (121).

The invention discloses a gap-adjustable compensation knuckle bearing and relates to the technical field of bearings. In order to solve the problems that an existing knuckle bearing is lubricated by using a special material and selecting proper lubricating liquid, but a lubricating agent possibly overflows to adsorb dust and impurities due to excessive lubrication, so that abrasion is generated between an inner ring and an outer ring, and the service life of the bearing is relatively short. An outer ring of the knuckle bearing is divided into an outer ring upper ring and an outer ring lower ring which are vertically symmetrical, a gap is reserved between the opposite inner end faces of the outer ring upper ring and the outer ring lower ring, a cylindrical shell is installed outside the outer ring upper ring and the outer ring lower ring, and the outer ring upper ring and the outer ring lower ring are connected with the cylindrical shell through threads. The gap between the inner ring and the outer ring is enlarged due to long-time friction of the spherical surfaces between the inner ring and the outer ring, so that the gap between the opposite inner end surfaces of the outer ring upper ring and the outer ring lower ring can be adjusted by properly tightening the outer ring upper ring and the outer ring lower ring, the gap between the inner and outer spherical ring surfaces is further reduced, and the service life of the knuckle bearing is greatly prolonged. The invention is applicable to the field of knuckle bearings.

Non-recirculating rolling element bearing (100) in an overrunning cage configuration, comprising a guide (103), a motion stage (101) and a cage(102). The guide defines a direction of motion and comprises a first guiding surface (108) being essentially V-shaped. The first guiding surface comprises a first and a second rolling surface. The motion stage is arranged to move along the direction of motion between a first end (112) and a second end (113) of the guide. The motion stage comprises a second guiding surface (109) comprising a third and a fourth rolling surface arranged opposite to the first and second rolling surface, respectively. The cage is arranged to be partially interposed between the guide and the motion stage. The cage comprises a first (105), a second and a third (106, 107) set of rolling elements. The first set is arranged to roll on the first and third rolling surface. The second set is arranged to roll on the second and fourth rolling surface. The third set is arranged to roll on the first rolling surface. The guide and each rolling element of the third set are arranged to magnetically attract one another so as to bias the cage towards the guide. In a first state, in which the motion stage is moved towards the first end of the guide, a first rolling element of the third set is positioned between the second end of the guide and a first end (115) of the motion stage arranged nearest to the second end of the guide. In a second state, in which the motion stage is moved towards the second end of the guide, a second rolling element of the third set is positioned between the first end of the guide and a second end (114) of the motion stage nearest to the first end of the guide.

A sliding member includes a cylindrical metal substrate; a porous layer formed on the inner peripheral surface of the metal substrate; and a sliding layer covering the porous layer. The porous layer is formed of a metal simple substance or an alloy composition. The sliding layer is formed of a resin composition. The sliding member has, on a part of the inner peripheral surface, a region where the resin composition is absent and thus a nonporous layer formed of the metal simple substance or the alloy composition is exposed.

To provide various methods and systems for a liquid metal bearing assembly.SOLUTION: A liquid metal bearing assembly includes: a fill port fluidly coupled to a liquid metal reservoir of the liquid metal bearing assembly, the fill port including an inlet diameter and an outlet diameter, the outlet diameter smaller than the inlet diameter; and a pin formed to fit the inside of the fill port and prevent liquid metal from leaving the liquid metal reservoir via the fill port.SELECTED DRAWING: Figure 3