3633results about "Ball bearings" patented technology

To provide an electric corrosion preventing electric conductive cover and a rolling bearing which can prevent electric corrosion to lengthen a service life thereof.SOLUTION: An electric corrosion preventing electric conductive cover 1 has: a bearing fitting part 9 having a cylindrical part fitted in a first bearing ring 3 of a rolling bearing 2 and having electric conductivity; and an electric conductive part 10 radially extending from the bearing fitting part 9 to come into contact with a second bearing ring 4 of the rolling bearing 2 and having electric conductivity. A rolling bearing 2 includes the electric corrosion preventing electric conductive cover 1.SELECTED DRAWING: Figure 2

A rotating device and a jigsaw puzzle table using the rotating device are disclosed in present disclosure. The jigsaw puzzle board includes a board assembly having a body portion and a kickstand coupled with the body portion, and at least one rotating device attached to the kickstand of the board assembly. When the kickstand is in a folded state, at least a part of the rotating device protrudes from a lower surface of the board assembly and contacted with a playing surface. The board assembly is capable of being rotated on the playing place via the rotating device. When the kickstand is in the unfolded state, the body portion and the rotating device are inclined and supported on the playing surface.

The present disclosure provides a puzzle table. The puzzle table includes at least two board units and at least one connecting assembly configured to connect two adjacent board units. Each connecting assembly comprises an inserting assembly and a receiving assembly. The inserting assembly is mounted on one of the two adjacent board units, while the receiving assembly is mounted on the other board unit. When the inserting assembly and the receiving assembly are inserted into each other, the two adjacent board units are spliced with each other, and upper faces of the two adjacent board units are substantially flush with each other. The inserting assembly and the receiving assembly are capable of being inserted into each other, such that the at least two puzzle plates can be spliced with each other in parallel to form an assembled body.

The present invention relates to a bearing house comprising a bearing house body for holding a bearing; a shield forming a shaft insertion for inserting a shaft into the bearing house, and at least one conducting element providing an electrical connection between the inside of the bearing house body to an outside material.

The invention discloses an elastic support integrated bearing and squeeze film damper integrated structure with outer ring radial holes. The elastic support integrated bearing and squeeze film damper integrated structure comprises an elastic support integrated outer ring, a bearing inner ring, a retainer, a rolling body, a squeeze film damper, a bearing seat and the like. The elastic support integrated outer ring adopts the integrated design of a squirrel-cage type elastic support and the bearing outer ring, the radial size is reduced, the centering precision is improved, and an oil storage groove and a radial oil hole are formed in the outer side wall of the bearing outer ring of the integrated structure; the extrusion oil film damper is located on the outer side of the elastic support integrated bearing, and an oil film is communicated with a radial oil hole in the bearing outer ring, so that bearing lubrication and the extrusion oil film damper share a lubricating oil path; radial lubricating oil lubrication of the bearing is achieved through the arrangement of the radial oil holes, and the situation that the bearing is damaged due to lack of oil lubrication under the extreme working condition is avoided; meanwhile, the oil storage grooves and the radial oil holes can effectively promote flowing of lubricating oil in an oil film, formation of a dead cavity of the squeeze oil film damper is avoided, and the vibration reduction effect of the squeeze oil film damper is enhanced.

The invention provides an enhanced heat conduction lubrication type ball bearing for an X-ray tube and a CT bulb tube. The enhanced heat conduction lubrication type ball bearing comprises a bearing sleeve, a sealing end cover, a bearing raceway, a fixing shaft, a sealing baffle and a ball. A bearing cavity for accommodating the bearing raceway is formed in the bearing sleeve, the bearing cavity is filled with liquid metal, gaps among the bearing raceway, the balls and the fixed shaft are filled with the liquid metal, and the fixed shaft is filled with a flowing heat dissipation medium; the two ends of the bearing sleeve are a closed end and an open end respectively, a sealing step is arranged at the open end, movable sealing grooves are formed in the end face of the sealing step and the end face of the sealing end cover, each movable sealing groove comprises two flow channels intersecting at an acute angle, and a sealing groove and a backflow hole communicated with the movable sealing grooves and the sealing groove are formed in the sealing end cover. The anode assembly has good lubricity, heat dissipation capacity and conductivity, the operation stability is improved, the service life is prolonged, and the heat dissipation power of the anode assembly is greatly improved.

A method for installing a bearing assembly on a stationary component where the bearing assembly includes a bearing carrier, a stationary bearing ring rotationally secured to the bearing carrier and a rotatable bearing ring supported for rotation relative to the first bearing ring. The method includes inserting a portion of the bearing carrier into an opening in the stationary component or inserting a portion of the stationary component into the bearing carrier, using an alignment tool to position at least two exposed radial surface portions of the stationary bearing ring with a surface of the stationary component to produce a temporary alignment of a rotational axis of the stationary bearing ring with a central axis of the stationary component, after producing the temporary alignment, attaching the bearing carrier to the stationary component in a manner that maintains the alignment, and removing the alignment tool from the bearing ring.

The invention relates to an embedded rolling bearing with a source end parameter acquisition system and a manufacturing method of the embedded rolling bearing. The embedded rolling bearing comprises a bearing body, and a containing groove is formed in the peripheral face of the bearing body; the thin film sensor assembly is formed in the accommodating groove, and comprises a PDC-ITO (Poly (Propylene Diene Monomer-Indium Tin Oxide)) strain element, a PDC-Pt (Poly (Propylene Diene Monomer)-Pt) temperature element, a PDC-PZT (Poly (Poly (Propylene Diene Monomer)-PZT) piezoelectric thin film and a plurality of bonding pads which are respectively matched with the PDC-ITO strain element, the PDC-Pt temperature element and the PDC-PZT piezoelectric thin film; the acquisition microstructure is arranged in the accommodating groove and comprises a PCB (Printed Circuit Board) and a functional chip which is formed on the PCB and is electrically connected with the plurality of bonding pads through a plurality of electrical interconnection sockets; the heat insulation pouring sealant is poured into the accommodating groove; and a metal cover. Normal installation of the bearing is achieved to the maximum extent, and the defect that the appearance and the size of a traditional external sensor and a traditional collector are limited is overcome.

The utility model belongs to the technical field of thin-wall angular contact ball bearings, and particularly relates to a thin-wall angular contact ball bearing capable of being quickly lubricated, which comprises a bearing component, the bearing component comprises an outer ring, a lubricating component is fixedly connected inside the outer ring, and clamping components are arranged at the upper end and the lower end of the inner wall of the outer ring. The lubricating assembly comprises six sets of piston cylinders fixedly connected to the interior of the outer ring, pistons are slidably connected to the inner walls of the six sets of piston cylinders, piston rods are welded to one sides of the pistons, and the surfaces of the piston rods are sleeved with springs. The bearing friction coefficient is reduced, the service life is prolonged, meanwhile, self-lubrication can be achieved through rotation of the balls, manual spraying is not needed, when the ball is separated from extrusion of the balls, the piston is driven to reset under the counter-acting force of the spring, and the service life is prolonged. And under the action of the one-way piece, lubricating oil can be effectively pumped into the oil storage tank through the oil pumping pipe.

A mechanical component (10) has a surface and is made of steel subjected to quenching and tempering. The mechanical component includes a nitrided layer (11) formed at the surface (10a, 10b, 10c, 10d). Steel contains at least 0.95 mass % and at most 1.10 mass % of carbon, less than 0.30 mass % of silicon, less than 0.50 mass % of manganese, less than 0.0080 mass % of sulfur, at least 1.3 mass % and at most 1.6 mass % of chromium, and a remainder composed of iron and an inevitable impurity. An average nitrogen concentration at the surface is equal to or more than 0.10 mass %. A hardness at the surface is equal to or more than 850 Hv. An amount of retained austenite at the surface is equal to or less than 20 volume %.

The invention relates to a bypass device (1), an electrically conductive bypass conductor (3), and a first machine element (12), wherein the bypass conductor (3) is in contact with the first machine element (12), the first machine element being contacted by the bypass conductor (3) at a contact surface (K), and the contact surface (K) comprising a layer system (3) electroplated onto the first machine element (11), wherein the layer system (3) optionally comprises a first layer (3a) arranged on the first machine element (11) and at least one second layer (3b) arranged on the first machine element (11) or, if present, on the first layer (3a), wherein the optional first layer (3a) is formed of copper or nickel, and the at least one second layer (3b) is formed of an alloy comprising at least two of the elements tin, copper, nickel, silver, zinc, bismuth, antimony, cobalt, manganese, and tungsten.where the alloy contains non-metallic particles, including a comprehensive number of electrically conductive particles.

To ensure a stable conductive path with higher conductivity.SOLUTION: A brush unit 20 abuts against an axial conductive portion 10 provided on a rotating shaft 2 to electrically connect a housing 4 and the axial conductive portion 10. The brush unit 20 includes: a holder 21; a brush 22 abutting against the axial conductive portion 10 through a first opening H21a provided in the holder 21; a spring 23; a cylindrical sleeve 24 that holds the brush 22; an electrode 25; and a wiring 26 that connects the brush 22 and the electrode 25. The electrode 25 is sandwiched between a second protruding portion 21b of the holder 21 and the sleeve 24.SELECTED DRAWING: Figure 1

A bearing seal provides a first sealing member to be secured to a shoulder on one side of a first bearing ring and a second sealing member that can be secured to a shoulder on the same side of a second bearing ring. A labyrinth seal gap is formed between the first sealing member and the second sealing member, which has at least one tooth-shaped turn. On the basis of the above bearing seal, the present invention further provides a rolling bearing that employs the bearing seal on an axial side thereof.

An electrically conductive assembly prevents current flow through the raceways of a bearing rotatably coupling a shaft with an outer member, such that the shaft or outer member is rotatable about a central axis, the outer member having an exterior mounting surface spaced radially outwardly from the bore. The conductive assembly includes an annular base plate formed of a conductive material and having a main body entirely encircling the centerline and two or more integral mounting lugs extending radially outwardly from the main body and connectable with the mounting surface of the outer member to secure the conductive assembly to the outer member. An annular inner conductor is connected with the base plate and has an inner radial end engageable with the shaft such that an electrically conductive path extends between the shaft and the outer member through the inner conductor and the base plate.

[Bearing device with integrated electrical insulation, in particular for an electric motor or machine] This bearing device comprises a bearing 10 provided with a first ring 12 and a second ring 14 capable of rotating relative to each other. The device comprises at least one insulating sleeve 22 mounted on the second ring 14 of the bearing and provided with a bushing 24 and an insulating lining 26 overmolded on the second ring 14 and made of electrically insulating material. The bushing comprises a first axial flange 24a and a second axial flange 24b connected by a central radial core 24c. The insulating lining 26 covers at least the second axial flange 24b, the first axial flange 24a being radially offset relative to the insulating lining 26 on the side opposite the bearing 10. Reference: Figure 3

The invention discloses a high-sealing long-service-life automobile hub bearing, and belongs to the technical field of bearings, the high-sealing long-service-life automobile hub bearing comprises an inner ring body fixedly mounted on a shaft, an outer ring body is arranged on the outer side of the inner ring body, balls are arranged between the inner ring body and the outer ring body, and the outer sides of the balls are positioned through retainers; preset holes are formed in the two sides of the inner ring body and the two sides of the outer ring body, oil storage assemblies which are driven by heat to achieve automatic oil supplementing are fixedly installed on the inner sides of the preset holes, sealing pieces are fixedly installed at the two ends of the inner ring body, and first sealing rubber bodies used for adjusting and conveying oil are fixedly bonded to the outer sides of the sealing pieces. And second sealing rubber bodies are fixedly mounted at the two ends of the outer ring body. According to the automobile hub bearing with the high sealing performance and the long service life, different sealing modes can be adopted when an automobile runs and stops, the sealing dustproof effect at the position of the bearing is effectively improved, and oil liquid can be added in a self-adaptive mode in the using process.

A rock housing for horizontal directional drilling machine includes a cylindrical housing body with walls defining a longitudinal cavity. A bearing assembly is provided as a part of the housing and is located above a bit box region of the housing. The bearing assembly is lubricated by drilling mud which flows through the drill string of the drilling machine, which mud flow is normally used for cooling the drill bit and removing cuttings. A portion of the drilling mud is diverted and passes through a gap formed between the bearing races of the bearing assembly, the gap being sized so as to create the necessary back pressure to divert the needed flow of drilling mud to the assembly.

A support assembly for moving shafts, comprising a bearing unit positioned in a casing, and a cover for fluid sealing the casing. The support assembly comprises double level of protection provided by two distinct sealing devices that keep the bearing unit protected from washing liquid even in the most demanding conditions of use. The better sealing configuration aids in overall better sealing of the bearing unit; greater resistance to contaminants; and improving the sealing performance of the whole support assembly.

An electrically conductive assembly prevents current flow through the raceways of a bearing and includes a conductive base plate having a centerline and including an annular main body with an inner and outer radial ends. One or more mounting lugs extend radially outwardly from the outer radial end of the main body and are connectable with the exterior surface of an outer member to secure the conductive assembly to the outer member at a position spaced axially from the bearing. The main body may be flat and include one or more stiffening flanges extending axially from and at least partially circumferentially about the inner perimeter of the main body and / or the outer perimeter of the main body and / or the outer perimeter of the mounting lugs. Alternatively, the main body is formed as a circular hub having a bore for receiving the conductor and each mounting lug includes two stiffening ribs.

Provided is a steering device including a lock nut that fixes an outer race of a turning nut threadably engaged with a rack bar. A loosening prevention protruding portion formed on a lock nut main body is brought into contact with a radial-direction abutting portion to prevent loosening of the lock nut with a frictional force. At the same time, a lock nut recessed portion for reducing mechanical stiffness is formed in an outer peripheral surface of the loosening prevention protruding portion so that an external force acting from the outer race is buffered by the lock nut recessed portion. In this manner, a decrease in contact area between the loosening prevention protruding portion and the radial-direction abutting portion is reduced.

An ultrahigh-temperature-resistant full ball bearing comprises a bearing outer ring, a bearing inner ring and a roller, the roller is spherical and is arranged in a roller path in a full complement mode, and the bearing outer ring, the bearing inner ring and the roller are all made of carbon fiber reinforced ceramic matrix composite materials. The design method comprises the following steps: S1, determining the inner diameter d, the outer diameter D and the width B of the bearing; and S2, determining an inner groove curvature radius coefficient fi and an outer groove curvature radius coefficient fe of the bearing based on a principle of reducing the working contact stress of the bearing and prolonging the fatigue relieving life of the bearing. And S3, the value ranges of the roller diameter DW, the center diameter DWP and the roller number Z of the bearing are determined. And S4, optimizing and determining the roller diameter DW, the center diameter DWP and the roller number Z of the bearing by taking the principle of obtaining the maximum radial basic rated static load. By applying the high-temperature-resistant bearing, the technical problems that an existing bearing loses efficacy quickly due to high temperature and insufficient lubrication in a high-temperature environment for a long time, and a bearing made of a ceramic material is low in fracture toughness and thermal shock resistance can be solved.

To improve workability during assembly while suppressing an increase in cost. [Solution] The rolling bearing comprises an outer member 1 and an inner member 2, a plurality of rolling elements 3 arranged circumferentially in the annular space between the inner diameter surface of the outer member 1 and the outer diameter surface of the inner member 2, a circumferential locking portion 11 provided on one of the outer member 1 and the inner member 2 and a circumferential sliding portion 12 provided on the other, and a retaining ring 20 abutting against the locking portion 11 and the sliding portion 12 to electrically connect the outer member 1 and the inner member 2, the retaining ring 20 being conductive and elastically deformable, and being in axial contact with the sliding portion 12 with a clamping margin a.

Provided is a sealing device (10) for use together with a rolling bearing to at least partially seal at least one interior space (12) of the rolling bearing from an external environment (14). The sealing device (10) includes a first carrier member (16) having a passage (20) that fluidly connects an internal space (12) of the rolling bearing and an external environment (14). The sealing device (10) also includes a ventilation means (24) having at least one accommodating body (26) and at least one membrane (28). The accommodating body (26) includes a channel (32) and completely passes through the passage (20) of the first carrier member (16). The membrane (28) is at least partially disposed in the channel (32) of the accommodating body (26). The accommodating body (26) is injection molded, and the membrane (28) is overmolded and / or laser welded to the accommodating body (26) and fixed thereto.

This bearing track component comprises a shaft member comprising a first portion and a second portion. The first portion is made of a first steel material containing a first alloy component, and the second portion is made of a second steel material containing a second alloy component. The first alloy component is different from the second alloy component. The first portion has a bearing part having a track, and the second portion has a power transmission part having teeth. The first portion has a first surface-hardened layer provided along the outer peripheral surface of the first portion, and a first inner part. The average hardness of the first surface-hardened layer is greater than the average hardness of the first inner part. The second portion has a second surface-hardened layer provided along the outer peripheral surface of the second portion, and a second inner part. The average hardness of the second surface-hardened layer is greater than the average hardness of the second inner part. The first surface-hardened layer and the second surface-hardened layer are both carburized layers or carbonitrided layers, and the first surface-hardened layer and the second surface-hardened layer are connected to each other.

Rolling bearing unit (6) with a rolling bearing (3) and an annular cage (1) formed from two half-cages (10) connected to each other by pins (16) and holes (18) arranged alternately in a row on each half-cage (10), the pins (16) of one half-cage snappingly connected to the holes (18) of the opposite half-cage, and rigid blocks (21) alternating with recesses (22), the rigid blocks (21) of one half-cage (10) coupling to the recesses (22) of the opposite half-cage (10), the projecting rigid blocks (21) supporting the projecting pins (16), the holes (18) being formed on the rear side of the recesses (22), such that the half-cages (10) are connected by a first coupling and a second coupling in a row (14, 15) are connected, which are designed to absorb tangential and axial stresses separately;wherein the half-cages (10) are provided with a radial annular rib (34) which serves as a shield.;

The invention discloses a four-layer metal sliding bearing, and particularly relates to the technical field of rotary motion bearings, the four-layer metal sliding bearing comprises a bearing outer layer, a bearing inner layer, a plurality of balls and a rotary motion protection blocking assembly; the rotary motion protection blocking assembly comprises a sliding frame, a screw rod, a threaded sleeve block, a connecting strip, a baffle ring, a proximity sensor, a distance sensor and a gear motor, and further comprises a rotary motion supporting sliding assembly and a lubricating assembly. Through the rotary motion protection blocking assembly, the bearing inner layer can perform rotary motion operation through the rotary shaft, external dust and impurities are prevented from entering a gap between the bearing outer layer and the bearing inner layer, large abrasion is avoided, and the durability of the bearing in the rotary motion process is better; therefore, the problems that dust and impurities are in contact with the interior of the rotary motion bearing, large abrasion is easily caused, and the durability of the bearing in the rotary motion process is poor are solved.

The utility model relates to the technical field of traction motor bearing manufacturing, in particular to a deep groove ball bearing which comprises an outer ring, an inner ring, a plurality of rolling bodies and a retainer, the outer surface of the inner ring and the inner surface of the outer ring are respectively provided with a roller path for the rolling body to roll; the rolling body is located between the outer ring and the inner ring, and the retainer is located between the outer ring and the inner ring; the guide mode of the deep groove ball bearing is rolling body guide; the groove curvature coefficient of the outer ring is 0.520 Dw, and the groove curvature coefficient of the inner ring is 0.510 Dw. The curvature coefficient of the inner and outer ring channels is reduced by 0.005 Dw compared with a conventional bearing, and the contact area of the raceway and a rolling body is increased under the condition, so that the load borne by the unit area is reduced, the stress concentration and fatigue crack possibility is reduced, the operation temperature rise and vibration of the bearing under the high-speed working condition are reduced, and the fatigue life of the bearing is prolonged.

To provide a bearing device and a spindle device that can accurately measure a machining load and a preload on each bearing.SOLUTION: A bearing device 50 comprises a first outer ring spacer 6g arranged between an outer ring 5ga of a bearing 5a and an outer ring 5gb of a bearing 5b, a housing 3 for fixing the outer ring 5ga of the bearing 5a and the outer ring 5gb of the bearing 5b, a second outer ring spacer 7 arranged between the outer ring 5gb of the bearing 5b and the housing 3, a first strain sensor 11, and a second strain sensor 8. The first strain sensor 11 is fixed to the first outer ring spacer 6g, which is located on a path through which a preload is transmitted to the bearing 5a and the bearing 5b. The second strain sensor 8 is fixed to the second outer ring spacer 7, which is not located on the path through which the preload is transmitted to the bearing 5a and the bearing 5b.SELECTED DRAWING: Figure 2

A self-lubricating ultralow-temperature angular contact ball bearing belongs to the technical field of bearings and comprises a stainless steel outer sleeve and a stainless steel inner sleeve. A contact angle is arranged on one side of the inner side of the stainless steel outer sleeve and ranges from 14 degrees to 16 degrees. The silicon nitride ceramic ball bearing is characterized by further comprising a plurality of silicon nitride ceramic balls and a polyimide resin retainer, the polyimide resin retainer adopts an inner guide mode and has a self-lubricating function, an inner ring of the polyimide resin retainer is arranged at a position close to the stainless steel inner sleeve, and the inner ring of the polyimide resin retainer is in clearance fit with the outer edge of the stainless steel inner sleeve; the stainless steel inner sleeve is a rotary sleeve ring and provides dragging torque for the rolling body during rotation; a slope angle is arranged on one side of the inner side of the stainless steel outer sleeve, the slope angle ranges from 2.75 degrees to 3.25 degrees, and the slope and the groove bottom of the sleeve ring form a ball loading locking amount. The utility model has the advantages that: when working at an ultra-low temperature, the valve is not easy to wear, and the service life is prolonged.

[Problem] To facilitate the manufacturing of a bearing seal that prevents electrolytic corrosion of a rolling bearing. [Solution] A bearing seal 1 is used in a rolling bearing and includes an annular seal ring 2. The seal ring 2 includes a core 3 including a portion 3B in contact with an outer ring 11, and an elastic body 4 joined to a surface, on the width direction outer side BO, of the core 3. The elastic body 4 includes an inner diameter lip portion 7 that extends toward an outer peripheral surface 12A of an inner ring 12 and that inclines to the width direction outer side BO with proximity to the outer peripheral surface 12A. The bearing seal is provided with a conductive material 5 which is held by being sandwiched at an inner diameter section D that is between the core 3 and the elastic body 4 and that extends in a substantially radial direction R. The conductive material 5 includes a portion in contact with the inner ring 12, and a form in a state before being attached to the rolling bearing is an annular shape positioned in substantially the same plane. In a state of being mounted to the rolling bearing, the conductive material 5 pressed by the restoring force of the elastically deformed inner diameter lip portion 7 contacts the inner ring 12.