1621results about "Roller bearings" patented technology

The invention discloses a saw chain guide plate lubricating system which comprises an integrally-formed guide plate body and is characterized in that a driven supporting structure is arranged at one end of the guide plate body, a rotating structure is installed on the driven supporting structure, and a transmission wheel is installed on the rotating structure; a saw chain guide groove is formed in the side face of the guide plate body. The guide plate body and the driven supporting structure are provided with an oil conveying channel, one end of the oil conveying channel is connected with an oil supply unit of the lumbering equipment, and the other end of the oil conveying channel makes contact with the rotating structure. Through the arrangement of the oil conveying channel, the service life of the driven end rotating structure is prolonged, the part, making contact with a tree, of the saw chain can be lubricated, and meanwhile the utilization rate of lubricating oil can be increased.

The invention relates to the technical field of bearings, and particularly discloses a high-precision cylindrical roller bearing for an industrial robot, the high-precision cylindrical roller bearing comprises a first shaft sleeve, a second shaft sleeve and a spacer bush, the first shaft sleeve and the second shaft sleeve are located on the inner side and the outer side of the spacer bush respectively, a roller is arranged on the surface of the spacer bush, and the outer surface of the roller is in rotating contact with the first shaft sleeve and the second shaft sleeve respectively; and a compensation assembly is arranged on the inner side of the spacer bush and comprises a guide groove formed in the inner side of the spacer bush, a movable frame is slidably connected to the inner side of the guide groove, and a movable plate is fixedly connected to the outer surface of the movable frame. By arranging the compensation assembly, when the lubricating wheel is abraded, the movable frame moves towards one side close to the roller under the elastic force action of the double metal plates, and the reciprocating lead screw drives the lubricating wheel to synchronously move, so that the lubricating wheel is always attached to the surface of the roller, and a good lubricating effect can be continuously achieved on the bearing; and the influence of abrasion of the lubricating wheel on the lubricating effect of the bearing is reduced.

The invention discloses a plane thrust segmented retainer and a bearing, and relates to the field of bearings, the plane thrust segmented retainer comprises at least two retainer segments, each retainer segment is provided with a plurality of windows, and the adjacent windows are separated by cross beams; first stop blocks are symmetrically arranged on the mounting surface of the window, second stop blocks are symmetrically arranged on the inner walls of the two sides of the window, the first stop blocks are used for wrapping the upper half section of the roller, and the second stop blocks are used for wrapping the lower half section of the roller. The rollers are wrapped by the first check blocks and the second check blocks which are arranged on the windows, the failure phenomenon caused by collision is avoided, and the service life of the retainer and the service life of the bearing can be prolonged.

A bearing arrangement includes a first anti-friction bearing including an inner ring and an outer ring, a second anti-friction bearing including an inner ring and an outer ring, a first spacer element seated between the inner ring of the first anti-friction bearing and the inner ring of the second anti-friction bearing and including an oil supply channel which runs in a radial direction, and a second spacer element arranged between outer ring of the first anti-friction bearing and the outer ring of the second anti-friction bearing for adjusting a bearing prestress. The second spacer element includes at least two curved pieces which are placed circumferentially in opposition to one another. The second spacer element extends in the radial direction such as to from a radial gap to the first spacer element and includes an oil supply channel which runs in the radial direction.

Provided is a tapered roller bearing (1) for which a dimensionless number X is defined by the following formula (1) based on a small-diameter-side gap S1 which is a gap between a small-diameter-side annular part (6) of a retainer (5) and a small collar part (2b) of an inner ring (2), a large-diameter-side gap S2 which is a gap between the large-diameter-side annular part (7) and a large collar part (2c) of the inner ring (2), an average roller diameter d, a roller length l, and an outer member angle α. The dimensionless number X falls within a range of 0.69<X<1.12.

A crossed roller bearing and an isolation block belong to the technical field of bearings, and are characterized in that oil storage holes are respectively formed in the centers of contact surfaces of two rollers; the four vertical surfaces are respectively provided with a guide oil groove, and the guide oil grooves extend and penetrate through the whole thickness of the corresponding vertical surfaces; and an included angle is formed between the extending direction of the guide oil groove and the central axis of the isolation block, so that a pumping effect is generated when the roller rotates, and lubricating grease is promoted to flow in the guide oil groove. The internal grease storage space of the bearing is optimized, and the internal lubrication state is greatly improved.

The utility model discloses a sealing type slewing bearing which comprises an inner ring and an outer ring which are arranged from inside to outside, a plurality of balls are arranged between the inner ring and the outer ring, the end face of the inner ring is higher than the end face of the outer ring, a sealing ring is arranged on the side face of the inner ring, and the inner ring and the outer ring are arranged in parallel. An annular protrusion is formed on the lower end face of the sealing ring, the end face of the outer ring is sunken downwards to form an annular groove, the annular protrusion is rotatably clamped in the annular groove, a gap exists between the lower end face of the sealing ring and the end face of the outer ring, and a rubber ring with a U-shaped section is detachably arranged at the end of the sealing ring. The problems that in the prior art, a rubber ring is arranged on the surface of a slewing bearing, one end of the rubber ring is clamped to the side face of an inner ring, the other end of the rubber ring is attached to the end face of an outer ring, after long-time use, the elasticity of the sealing rubber ring is reduced, the end of the rubber ring is prone to upwarp, and the sealing performance is reduced are solved.

An axial rolling bearing unit includes a first annular axial bearing washer, a second annular axial bearing washer, a bearing cage, and rolling elements arranged between the first annular axial bearing washer and the second annular axial bearing washer. The bearing cage includes an inner radial edge rim extending in an axial direction to radially guide the rolling elements, and an outer radial edge rim extending in the axial direction to radially guide the rolling elements. The inner radial edge rim or the outer radial edge rim includes an end-side bend extending in an opposite axial direction as a double-rim design, and the end-side bend has a first distal end section that holds the first annular axial bearing washer in a form-fitting manner. The other one of the inner radial edge rim or the outer radial edge rim holds the second annular axial bearing washer in a form-fitting manner.

A wheel of the present disclosure includes a barrel holder, barrel support shafts, barrels, and bearings. The barrel holder is rotationally driven. The barrel support shafts arranged on the circumference of the barrel holder at an angle to a rotation axis of the barrel holder. The barrels are barrel-shaped rotating bodies. The barrels are rotatably supported on the corresponding barrel support shafts, and outer surfaces of the barrels contact a surface on which the wheel travels as the barrel holder rotates. The bearing supports the retainer. A groove is formed at least in a region of the outer circumferential surface of the barrel support shaft extending in the axial direction and including a radially inner projected area of the retainer.

Disclosed is a spherical roller bearing comprising: at least an outer ring and an inner ring; two groups of spherical rollers; and at least one cage configured to retain the spherical rollers, the cage comprising at least one axially inner cage ring, a first axially outer cage ring and a second axially outer cage ring extending in a circumferential direction of the spherical roller bearing, the first axial outer retainer ring and the second axial outer retainer ring are respectively separated from the axial inner retainer ring and are connected to the axial inner retainer ring through a plurality of retainer rods to form a closed cavity; each pocket is configured to receive one spherical roller and has an axially inner pocket side face and an axially outer pocket side face configured to restrain the spherical roller in the axial direction, each cage bar has a curved portion extending in the axial direction in the circumferential direction, the curved portion is at least partially concave, and in the axial direction, the curved portion is at least partially concave. The distance between the vertex of the bending part and the side face of the axial inner cavity lattice is different from the distance between the vertex of the bending part and the side face of the axial outer cavity lattice.

The utility model relates to a cylindrical roller bearing with a disc-type retainer, which belongs to the technical field of bearing assembly and manufacture and comprises an inner ring, an outer ring, rollers and the disc-type retainer, the inner ring and the outer ring are coaxially arranged, and the disc-type retainer and the plurality of rollers are arranged between the inner ring and the outer ring; the outer ring is formed by combining two annular split half outer rings, a retainer limiting groove used for positioning the disc type retainer is formed in the middle of the inner diameter face of the outer ring, the retainer limiting groove is formed between the two split half outer rings, and the outer edge of the disc type retainer is assembled in the retainer limiting groove. Flanges are arranged on the two sides of the inner diameter face of the outer ring, and the rollers are axially limited through the flanges. The limitation on the retainer is reduced through the split bearing outer ring, and the split outer ring is combined with the disc type retainer, so that the assembly space of the retainer is effectively controlled, the bearing has the advantages of high bearing capacity, long service life and high reliability, the performance of the gear box is improved, and meanwhile, the loss caused by fault shutdown is avoided.

The invention provides a self-lubricating structure of a tapered roller bearing, and relates to the field of bearing lubrication.The self-lubricating structure comprises a bearing assembly, the bearing assembly is composed of an outer ring mechanism, an inner ring mechanism and a pressure piston, lubricating grease can be stored in the outer ring mechanism for standby application, and self-lubricating use of the bearing assembly can be achieved for a long time through single-time filling; the outer ring mechanism can achieve the function of automatically lubricating the bearing assembly under the cooperative use of the inner ring mechanism and the pressure piston, manual control is not needed, the bearing assembly can automatically achieve starting and stopping of the lubricating grease adding function according to the operation working condition of the bearing assembly, manual regulation and control are not needed, and the working efficiency is improved. And only a proper amount of lubricating grease is added each time, so that the phenomenon that the lubricating grease is added too much or too little each time is avoided, and the problems that an oil storage structure is not arranged in an existing tapered roller bearing, only a small amount of lubricating grease can be added each time of lubrication, and the lubrication efficiency maintaining time is short are solved.

The invention discloses an automobile hub conical bearing anti-falling sealing structure which comprises an outer ring, a plurality of conical rollers are arranged on the inner wall of the outer ring at equal intervals, an inner ring is arranged on the inner sides of the conical rollers, a clamping groove is annularly formed in the inner ring, a first limiting groove and a second limiting groove are formed in the two ends of the clamping groove, and the clamping groove is connected with a locking block in a clamped mode. The centripetal end faces of the multiple locking blocks are connected with an axle outer ring, and the first limiting groove and the second limiting groove are slidably connected with the two ends of the locking blocks. Meanwhile, dust enters due to poor lubrication, abrasion of a retainer and a rolling body is aggravated, the retainer is broken, the rollers are scattered, a single tapered roller is seriously abraded, the tapered rollers cannot revolve along an inner ring, a gap between the inner ring and an outer ring goes wrong, and the tapered rollers fall off.

The utility model discloses an automatic inflation hub bearing. The automatic inflation hub bearing comprises a hub bearing and a bell housing, the hub bearing comprises a flange outer ring, a flange inner ring and a small inner ring, a locking groove is formed in the end, inserted into the flange inner ring, of the bell housing, a locking bolt is arranged on an inner hole of the flange inner ring, the head of the locking bolt abuts against the end face of the flange outer ring, and the rod portion of the locking bolt is in threaded fit with the locking groove. A center hole is formed in the center of the rod portion of the locking bolt, and a dynamic sealing assembly is arranged between the outer wall of the bell-shaped shell and the small inner ring. The air conditioner is simple in structure, reasonable in layout, good in overall air tightness and good in using effect.

The utility model discloses a cylindrical roller bearing assembly which comprises two adjacent outer rings and inner rings arranged on the inner sides of the outer rings, a plurality of U-shaped structure embedding grooves are uniformly formed in the outer rings, a connecting assembly is arranged in each two adjacent embedding grooves, and the connecting assemblies are used for fixedly connecting the outer rings; each connecting assembly comprises a connecting plate inserted into the corresponding embedding groove, two positioning plates symmetrically and fixedly connected to the side, close to the outer ring, of the connecting plate and two screws inserted into the corresponding positioning plates in a penetrating mode, the positioning plates are in threaded connection with the interiors of the corresponding outer rings through the screws, and threaded grooves connected with the screws in a matched mode are formed in the outer rings. By means of the structure, the cylindrical roller bearings are firmly connected through a simple connecting structure, the requirements for different lengths and bearing capacity can be met more easily, only damaged or abraded single-row bearings need to be replaced during maintenance or replacement, the whole multi-row bearings do not need to be replaced, the maintenance cost is reduced, and practicability is high.

To provide a method capable of preventing an internal defect from being generated in an overlaying layer having a raceway surface on its surface.SOLUTION: A method comprises an overlaying process of forming an overlaying part 15 on a raceway surface 4a by relatively rotating and axially relatively displacing a laser light source with respect to a raceway ring 3a while irradiating the raceway surface 4a provided on an inner peripheral surface or an outer peripheral surface of the used raceway ring 3a with a laser beam 10 emitted from the laser light source, and supplying a molten material 11 to a portion irradiated with the laser beam 10 in the raceway surface 4a. In the overlaying process, an irradiation direction of the laser beam 10 to the raceway surface 4a is a direction inclined forward to a normal direction of the raceway surface 4 with respect to an axial relative displacement direction of the laser light source to the raceway ring 3a.SELECTED DRAWING: Figure 4

The invention relates to the technical field of bearing structures, and discloses a lightweight thin-wall crossed roller bearing for a high-precision industrial robot, the lightweight thin-wall crossed roller bearing comprises a mounting seat, an outer ring, an inner ring and a crossed roller set, the outer ring is fixed in the mounting seat, the inner wall of the outer ring is provided with a first V-shaped channel, the outer wall of the inner ring is provided with a second V-shaped channel, and the crossed roller set is fixed in the mounting seat; the first V-shaped channel and the second V-shaped channel are combined to form a roller path for accommodating the crossed roller group, and a sealing ring is arranged at an annular gap between the two end surfaces of the outer ring and the inner ring; the lubricating assembly comprises a valve cavity formed in the outer ring, a lubricating flow channel communicating with the valve cavity and a distributor located at an outlet of the lubricating flow channel, and a valve element is arranged in the valve cavity. By arranging the lubricating assembly, lubricating oil can be supplied to the crossed roller set in a self-adaptive mode according to the working temperature of the bearing, the surface of the crossed roller set is evenly covered with the seepage holes in the distributor in an infiltration mode, and an oil film is formed to achieve lubrication and heat dissipation.

To provide a roller bearing having improved assembling performance.SOLUTION: A roller bearing 50 includes: inner and outer rings 10, 20 that are one pair of bearing rings; a plurality of rollers 30 located between the inner and outer rings 10, 20 in a radial direction; and a cage 40 that holds the rollers 30. The roller bearing can be separated / assembled by causing an assembly 70 formed by combining one bearing ring 10 of the one pair, the plurality of rollers 30 and the cage 40 to move in an axial direction relatively to the other bearing ring 20 of the one pair. The other bearing ring 20 has a plurality of curved surface parts 131, 132, 133 that form a peripheral surface smoothly connecting a raceway surface 11 that defines a raceway of the roller 30 and a bearing ring end surface 12 thereof. The plurality of curved surface parts each have a round shape having different curvature radiuses. The plurality of curved surface parts are sequentially connected in the axial direction so that the curvature radius of the curved surface part becomes larger from the bearing ring end surface 12 toward the raceway surface 11.SELECTED DRAWING: Figure 1

The utility model discloses a plastic oil self-lubricating maintenance-free axle bearing which comprises an outer ring, a rolling body, an inner ring and plastic oil, the rolling body is arranged between the inner ring and the outer ring, the plastic oil is in contact with the rolling body and is used for lubricating the rolling body, the utility model provides the novel self-lubricating maintenance-free axle bearing, and the plastic oil formed by an oil-saturated polymer matrix is used as a lubricating medium of the axle bearing; the lubricating oil can stably run in high-load, high-dust, high-temperature and low-temperature environments, and a lubricating film is autonomously formed in the running process, so that the maintenance frequency is reduced, the friction loss is reduced, the wear resistance is enhanced, and even the lubricating oil is maintenance-free. And the solid plastic oil is not easy to leak, so that the risk of environmental pollution is reduced.

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 relates to the field of bearings, in particular to a tapered roller bearing machining device and a machining process thereof. The machining device comprises a supporting ring, the cross section of the supporting ring is in an L shape, a plurality of protruding strips are annularly arranged on the supporting ring, when the bearing is machined, the supporting ring is placed in a horizontal state, an inner ring is placed on the protruding strips, the inner ring is sleeved with an isolation frame, and then the supporting ring supports the isolation frame; at the moment, a plurality of tapered rollers are placed in a plurality of through holes in the isolation frame, the tapered rollers are inserted into the tapered roller path, the outer edge of the supporting ring supports the tapered rollers, and then the outer ring is buckled on the outer sides of the tapered rollers, so that the tapered roller bearing is convenient to assemble and machine. Assembling and machining of a plurality of tapered rollers in the tapered roller bearing are facilitated, and the tapered rollers are prevented from falling off during assembling.

The invention discloses a reinforced full-split electrocorrosion-resistant rolling bearing and a mounting method thereof, and relates to the technical field of full-split bearing design, the reinforced full-split electrocorrosion-resistant rolling bearing structurally comprises a split inner ring, an outer ring and a retainer roller assembly, the inner ring comprises a split inner ring I, a split inner ring II and a clamping ring, and the clamping ring is used for fixing the split inner ring I and the split inner ring II into a ring. Buckle structures for circumferentially fixing the first subdivision inner ring and the second subdivision inner ring are arranged at two joints of the first subdivision inner ring and the second subdivision inner ring, and each buckle structure comprises a protruding wedge-shaped structure arranged on the first subdivision inner ring and a groove structure arranged on the second subdivision inner ring and matched with the wedge-shaped structure; the first split inner ring and the second split inner ring slide relatively in the axis direction of the bearing so that clamping and separation of the buckle structure can be achieved. The retainer roller assembly comprises a roller, and the surface of the roller is provided with an insulating coating used for relieving electrochemical corrosion of the bearing. The technical problem that an application scene is limited due to the fact that an existing full-split bearing is low in use performance can be solved.

To provide a resin retainer that undergoes little dimensional change and does not hinder assembly work of rolling elements.SOLUTION: In a resin retainer 1 for a rolling bearing, a ratio of dimensional change is less than 0.16%, and polyacetal (POM) is a preferable form of the resin. A rolling bearing is provided with the resin retainer 1 for the rolling bearing, and is suitable for use as a speed reduction mechanism used in a joint portion of a robot arm.SELECTED DRAWING: Figure 1

The invention belongs to the technical field of mechanical parts, and particularly relates to an embedded self-powered intelligent bearing which comprises a bearing outer ring, a bearing inner ring, a retainer and a plurality of rollers, the rollers are located in a raceway between the bearing inner ring and the bearing outer ring, the retainer is installed between the rollers, and the embedded self-powered intelligent bearing is characterized by further comprising a plurality of magnets, the magnet is fixed on the retainer between the rollers, a mounting cavity is formed in the roller, a plurality of turns of coils, a circuit board and a vibration sensor connected to the input end of the circuit board are arranged in the mounting cavity, the circuit board is in wireless communication connection with an external upper computer, and the coils are connected to the circuit board. Magnetic induction lines generated when the coil cuts the magnet supply power to the circuit board. The coil is arranged in the roller, the relative motion between the magnet and the coil can cut magnetic induction lines to the maximum extent, strong electromotive force is generated, and the energy conversion efficiency is improved; and meanwhile, the vibration sensor is arranged in the roller, so that the environmental interference is reduced, and the detection precision is improved.

A bearing system and method of operating the same that may include an outer bearing and an inner bearing, and a bearing engagement system configured to control a rotation of the inner bearing relative the outer bearing. In examples, the bearing may include a hybrid bearing having a roller bearing and a gas bearing such as a foil bearing, leaf-type bearing, or a tilt plate bearing. The bearing engagement system may include a displacer configured to linearly translate at least the inner bearing, displace an interface element, or both, and / or an electromagnet configured to generate a magnetic field to apply a magnetic torque to the inner bearing.

To provide an eccentric oscillation type gear device that can prevent a limiting member from being sandwiched between a crank bearing and an eccentric part of a crankshaft.SOLUTION: An eccentric oscillation type gear device comprises: a crankshaft 14 comprising an eccentric part 12A; an eccentric bearing 50A arranged on the eccentric part 12A; a limiting member 52A for limiting axial movement of the eccentric bearing 50A, and provided so as to be relatively rotatable with respect to the crankshaft 14; a crank bearing 54A arranged on the side opposite to the eccentric part 12A in an axial direction across the limiting member 52A, and supporting the crankshaft 14; and a positioning part 56A provided separately from the limiting member 52A, and positioning the crank bearing 54A in the axial direction with respect to the crankshaft 14 by being in contact with the crank bearing 54A from the side of the eccentric part 12A.SELECTED DRAWING: Figure 3

To provide a roller and cage assembly which is excellent in assembling ability on machinery for preventing increase in the number of components while securing a high load capacity.SOLUTION: A roller and cage assembly includes a plurality of rollers, and a cage 2 for holding the rollers, the cage 2 including a pair of ring members 4 facing to both axial ends of each roller, and a plurality of pillar parts 5 mounted over between the outer diameter parts of the pair of ring members 4 and provided at fixed spaces in the circumferential direction, where the rollers are put. On the inner diameter part of each ring member 4, a roller holding claw 6 is provided for locking the roller to the cage inner diameter side. A cage radial chamfer length B satisfies the following relationship to a cage thickness A: 0<B / A≤1.6.SELECTED DRAWING: Figure 3A

The invention provides a steel wire raceway bearing. The steel wire raceway bearing comprises a shell; a steel wire disposed in a recess of the housing for accommodating the steel wire; and the elastic adhesive is coated between the steel wire and the concave part so as to adhere the steel wire to the concave part. The invention also provides a method for assembling the steel wire raceway bearing. The method comprises the following steps of: 1, coating the concave part with the elastic adhesive along the circumferential direction; 2, the steel wire is installed in the concave part coated with the elastic adhesive; and 3, curing the elastic adhesive so as to bond the steel wire to the concave part. Compared with the prior art provided with a buffer pad, the steel wire and the shell can be fixedly bonded together through the elastic adhesive, unexpected displacement of the steel wire can be effectively prevented, the steel wire can still be allowed to move within an allowable range, vibration of the steel wire can be absorbed, and the buffering effect is achieved.

The invention relates to a rotor shaft (1) for a rotor (2) of an electric machine (3), in particular for use in an electrically operable drive train (4) of a motor vehicle (5), the rotor shaft comprising a circumferential toothing (6) which is formed monolithically with the rotor shaft (1) and which can be brought into meshing engagement with a corresponding toothing (7) in order to transmit a torque, and a first bearing seat (8) formed on the rotor shaft (1) and a second bearing seat (9) formed on the rotor shaft (1), wherein the toothing (6) of the rotor shaft (1) is arranged axially between the first bearing seat (8) and the second bearing seat (9), wherein a first rolling bearing (10) having an inner ring (11), connected to the rotor shaft (1) for conjoint rotation therewith, is arranged on the first bearing seat (8), and wherein a raceway (12) for rolling elements (14) guided in a cage (13), on which raceway the rolling elements (14) roll, is formed on the second bearing seat (9).

The present disclosure relates to an outer-ring-free cylindrical roller bearing structure for a wind turbine gearbox, comprising: an inner ring, a first raceway and a second raceway being provided on the periphery of the inner ring; a first rolling body and a second rolling body, which are respectively located in the first raceway and the second raceway; and a first retainer and a second retainer, which are respectively used for circumferentially separating the first rolling body in the first raceway and the second rolling body in the second raceway, wherein the inner diameter of the first retainer is less than the diameter of a circle where the center of the first rolling body is located, the inner diameter of the second retainer is greater than the diameter of a circle where the center of the second rolling body is located, and the first retainer and the second retainer partially overlap in the axial direction. The two retainers axially overlap, and under the same axial dimension condition, such retainers can increase the lengths of the rolling bodies to the maximum extent, thereby maximizing the static bearing capacity of the bearing, so that a planetary gearbox achieves larger power density.