35results about "Shafts" patented technology

A rolling bearing for a turbomachine supporting a first shaft to rotate relative to a second shaft, and comprising: a plurality of rolling elements engaged between an inner annular ring mounted on the second shaft and an outer annular ring mounted on the first shaft; an oil film formed at an annular contact surface between said outer ring and said first shaft; at least one duct passing through said inner ring and opening out in an inner race for said rolling elements in order to lubricate them; and at least one additional duct passing through said inner ring and opening out outside the inner race in order to feed oil through said outer ring to said oil film under the effect of the centrifugal force generated by said second shaft rotating, said outer ring having an annular shoulder projecting radially towards the inside of said annular space, said shoulder having at least one channel opening out substantially in register with said additional duct and opening out into said oil film.

A vehicle drive system including: a front drive unit in a front part of a vehicle, which has an engine and a torque converter integrally assembled to one another; a rear drive unit in a rear part of the vehicle, which has a transmission and a differential integrally assembled to one another; and a drive shaft connecting the torque converter of the front drive unit and the transmission of the rear drive unit. The drive shaft is configured to be elastically twistable for damping vibration transmission between the front and rear drive units.

A motor. The motor includes a stator, a rotor, a top magnetic structure, and a bottom magnetic structure. The stator is disposed in a frame. The rotor is also disposed in the frame, corresponding to the stator. The rotor comprises a shaft, extended axially from the rotor. The shaft does not contact the stator or the frame. The bottom magnetic structure is at the bottom of the frame. The top magnetic structure is on the top of the frame. The top and bottom magnetic structures are opposite to each other in an axial direction. Magnetic attraction generated between the first magnetic structure and the second magnetic structure attracts and positions the shaft therebetween such that the first magnetic structure, the second magnetic structure, and the shaft are coaxially aligned.

A motor includes a base, a stator, a bearing, a positioning member and a rotor. The base includes a shaft tube. The stator is mounted around the shaft tube. The bearing is received in the shaft tube. The positioning member is fixed to an end of the shaft tube and has a pressing portion to prevent movement of the bearing in the shaft tube. A plurality of retaining plates is formed on the positioning member. Each retaining plate has a retaining end. The rotor includes a shaft having an annular groove formed in an outer periphery thereof. The retaining ends of the retaining plates are in the annular groove to avoid departure of the rotor from the base. Consequently, by a single-component design of the positioning member, departures of the rotor and the bearing are both avoided.

The present invention relates to a connecting rod assembly and method of manufacturing same. The method includes defining a small end of a connecting rod having a terminal end and defining a pin bore extending through the small end. A pair of channels is forged on opposite sides of the small end, such that each of the channels is substantially perpendicular to the pin bore. A bushing having a contact surface including at least partially annular grooves and opposed distal ends is subsequently formed and installed into the pin bore of the small end. Following installation of the bushing, the connecting rod is machined to reduce the width of the small end between each channel and the terminal end to where at least a portion of the grooves are disposed along the distal ends to reduce the need to deburr the area adjacent the pin bore.

A bearing providing at least an inner ring and an outer ring adapted to concentrically rotate with respect to one another, equipped with at least one embedded device for the detection of a displacement in translation of the rings relative to each other, the detection device including a linear encoder element mounted on one of the rings, and a sensor element mounted on the other ring and opposite the encoder element.

Provided is a sintered bearing (1), including 3 to 12% by mass of aluminum, 0.05 to 0.5% by mass of phosphorus, and the balance including copper as a main component, and inevitable impurities, the sintered bearing (1) having a structure in which an aluminum-copper alloy is sintered with a sintering aid added to raw material powder, a pore (db, do) in a surface layer portion of the sintered bearing (1) being formed smaller than an internal pore (di).

A roller capable of easily absorbing impact transmitted thereto while maintaining a desired level of abrasion resistance, and a clothes drying apparatus provided with the roller. The roller is provided with an impact absorption enhancer capable of causing the roller to be easily elastically deformable while maintaining a desired hardness of the roller. Accordingly, it is possible to absorb intensive impact transmitted to the roller while maintaining a desired abrasion resistance of the roller.

A grease composition includes a base oil and a thickener. The base oil includes a hydrocarbon-based synthetic oil at 40 mass % or more, and a component A at 20 mass % to 70 mass %, the component A having a kinematic viscosity of 70 mm²/s or less at 40 degrees C. A kinematic viscosity of the base oil is in a range from 200 mm²/s to 2000 mm²/s at 40 degrees C. A worked penetration of the grease composition is in a range from 220 to 350.

A rolling bearing assembly and a crown shaped retainer, in which the rotating torque of the bearing assembly can be reduced with no limitation in use of the bearing assembly and with no need to modify the grease and the sealing member are provided. The rolling bearing assembly includes a plurality of balls interposed between inner and outer rings, and a retainer for retaining the balls. The retainer is of a crown shaped configuration including a retainer ring body having one side face formed with pockets, each having a portion with an opening, defined at respective locations in a circumferential direction for accommodating therein the balls; a grease reservoir depressed portion provided between the neighboring pockets in the circumferential direction of the retainer ring body for reserving a grease; and a communicating port for communicating the grease reservoir depressed portion and the pocket.

The invention discloses a rolling knuckle bearing. Inner surfaces of bearing outer rings and outer surfaces of bearing inner rings are spherical surfaces with coincided sphere centers; sphere sockets are distributed on the inner surfaces of the bearing outer rings; spherical rolling bodies are arranged in the sphere sockets; the inner surface of each bearing outer ring is provided with a circle of sphere socket on different annular circumferential faces; the circles of sphere sockets are uniformly distributed along the circumferential direction at intervals; the circles of sphere sockets on the different annular circumferential faces are symmetrically distributed by taking the bearing outer rings as centers along the axial directions of the bearing outer rings, so that the sphere sockets are uniformly distributed on the axial direction and the circumferential direction. According to the rolling knuckle bearing provided by the invention, three-axis space rotation can be realized; sphere parts enables rolling friction to replace sliding friction, so that the friction factor is reduced, and the fatigue life is prolonged; and the bearing capacity can be increased through bearing by multiple spheres, and the rolling knuckle bearing can bear radial load and axial load.

Provided is an electric linear actuator with which operation lock of a ball screw is prevented and high rotational performance is achieved at a low cost. [Solution] A housing (2) comprises a first housing (2a), and a second housing (2b). An electric motor is attached to the first housing (2a). An accommodation hole is formed at the first and second housings (2a, 2b) to accommodate a screw shaft. A deceleration mechanism (6) comprises an input gear (3) which is fixed to a motor shaft, an intermediate gear (4) which is engaged with the input shaft (3), and an output gear (5) which is engaged with the intermediate gear (4), and fixed to a nut (18) as a single unit. The intermediate gear (4) is rotatably supported via a shell-type needle bearing (23) using gear shafts (22) respectively implanted at the first housing (2a) and the second housing (2b). Ring-shaped washers (27, 28) are mounted on both sides of the intermediate gear (4). A width of a gear section of the intermediate gear (4) is configured to be smaller than a face width.

The present invention provides a highly operable easy-to-use camera having a simple configuration without losing a locking function. In a camera comprising: a rotary operation dial 7 to be operated rotationally; a lock arm 5 for locking the rotary operation dial 7 relative to a predetermined position; and a body case 2 to be fitted with the rotary operation dial 7 and the lock arm 5, a rotary operation portion 71 of the rotary operation dial 7 and a button operation portion 51 of the lock arm 5 are disposed in proximity to each other on adjacent faces of the body case 2; a lock groom 73 formed in a predetermined position of a lower face rib 72 of the rotary operation dial 7, the lower face rib 72 lying inside the body case 2, is arranged in such a manner that a fitting portion 53 of the lock arm 5 can be fitted thereinto; and an urging means 9 for urging the lock arm 5 from inside to outside of the body case 2 is provided.

A lock assembly for use with a powered actuator includes a housing, a first barrel part, a torque transmitting member, a first cam, a drive device and a spring. The housing has at least a first axially extending recess therein. The first barrel part is within the first recess. The torque transmitting member is adapted for abutment and releasable rotational engagement with a key. The first cam is adapted to operate a lock or latch mechanism and for rotational movement with the torque transmitting member. The drive device is adapted for engagement with the powered actuator and releasable engagement with the torque transmitting member. The spring biases the torque transmitting member towards engagement with the drive device.

The invention discloses a miniature ball bushing guide assembly in the technical field of ball bushing.The miniature ball bushing guide assembly comprises a guide column, a guide sleeve, a bushing and a ball, the guide sleeve is provided with an upper annular table and a lower annular table, the upper annular table is provided with an oil storage strip and an oil outlet structure, and the lower annular table is provided with an oil return cavity and a first oil return hole.By moving the pressing table relative to the spring plate, when the pressing table makes contact with the spring plate and presses the spring plate downwards, the spring plate enables the pressing plate to move downwards through the pressing shaft, the oil storage strip is compressed, a part of oil in the oil storage strip is squeezed out, discharged through the oil outlet and falls onto the lining, so that the balls are lubricated, friction and the like between the balls and the guide column are further reduced, redundant oil falls onto the lower annular table, oil enters the oil return cavity to be recycled through the oil return hole, oil waste and the like are avoided, and oil ports and oil plugs can be arranged on the side walls of the oil storage cavity and the oil return cavity so that oil can be conveniently added or discharged.

The application discloses a liquid metal sliding bearing, an X-ray tube and a CT scanning device. The liquid metal sliding bearing comprises a rotating core (100), a rotating member (200) capable of rotating relative to the rotating core (100), and liquid metal arranged between the rotating core (100) and the rotating member (200), wherein the rotating member (200) comprises a rotating housing (210) and a rotating flange (220) connected with the rotating housing (210), the rotating housing (210) and the rotating flange (220) are arranged along the axis of the liquid metal sliding bearing, a first sealing structure is formed between the rotating housing (210) and the rotating flange (220), and the first sealing structure comprises a first annular boss (241) formed around the axis of the liquid metal sliding bearing.

The invention discloses a high-temperature-resisting knuckle bearing for an actuator and belongs to the technical field of structural design. The knuckle bearing is composed of a rod end shaft sleeve and a shaft core. The shaft core is formed by a mesh-shaped alloy framework and ceramic powder through a high-temperature sintering process. The whole knuckle bearing is formed in a process channel of the shaft core embedding rod end shaft sleeve. The mesh-shaped alloy framework is formed by welding high-temperature alloy wires of different diameters or formed through 3D printing, the ceramic powder is hafnium carbide or zirconium carbide or tantalum carbide, the ceramic powder and the mesh-shaped alloy framework are evenly and densely combined, and the whole shaft core is formed. According to the high-temperature-resisting knuckle bearing for the actuator, the stress strength of the knuckle bearing in work can be guaranteed while thermal transmission in the working state is prevented, and the service life of the knuckle bearing can be prolonged.

A compressor system includes a compressor including a rotary shaft, an impeller, and a casing, a motor including a motor rotor disposed coaxially with the rotary shaft, and a coupling shaft coupling the motor rotor to the rotary shaft. The compressor includes a compressor bearing that rotatably supports the rotary shaft, and a compressor connecting hub that is fixed to the rotary shaft at a position where the compressor connecting hub overlaps the compressor bearing in the axial direction and at a position on an inner side in the radial direction. The coupling shaft is allowed to alleviate misalignment with the compressor connecting hub. The compressor bearing rotatably supports an outer peripheral surface of the compressor connecting hub.

The contact portion of the end face of a conical roller, which is a portion to be slidingly contacted with a collar portion, is ground such that the outer contour line of the section thereof has a continuously curved line which passes through at least not only the first point but also between the third position and fourth position.

A low-friction sliding material wherein 60% or more of the sliding surface of a sliding member is covered with fluorine fibers or composite fibers containing fluorine fibers, said fibers being arranged in parallel on at least the outermost surface of the sliding surface in a direction that is almost the same as the sliding direction. The present invention provides a low-friction sliding material which is free from the occurrence of fabric separation or the like extremely simply in comparison to conventional low-friction sliding materials.

Provided is a novel sintered oil-impregnated bearing superior in wear resistance and cost performance under a severe use condition where the bearing collides with a shaft due to a high load and vibration, such as a condition associated with an output shaft of an electric motor installed in a vehicle and a wiper motor installed therein. The sintered oil-impregnated bearing contains: 15 to 30% by mass of Cu; 1 to 4% by mass of C; and a remainder consisting of Fe and inevitable impurities, in which a metal structure with copper being melted therein is provided at least on a bearing surface; pearlite or a pearlite with ferrite being partially scattered therein is provided in a matrix; a copper-rich phase arranged in a mesh-like manner is also provided in the matrix; and a free graphite is dispersed and distributed in the matrix as well.