18results about "Rotary combination bearings" patented technology

A gearbox assembly for a turbine engine, the gearbox assembly including a plurality of planet gears. Each of the plurality of planet gears is associated with a planet pin. A plurality planet bearing rollers are disposed between the planet pin and each of the plurality of planet gears. The plurality of planet bearing rollers are configured to transfer a rotation of each of the plurality of planet gears to the planet pin. A rolling element bearing (REB) cage is configured to guide and to position the plurality of planet bearing rollers so that the plurality of planet bearing rollers are equally spaced apart, the REB cage having an inner diameter surface facing the planet pin and an outer diameter surface facing opposite to planet pin. An outer diameter guide ring is disposed radially outward of the outer diameter surface to hold the REB cage.

A slew bearing for rotatably supporting an object on a base about a slew axis. The slew bearing comprises a stationary ring and a rotary ring part. The stationary ring part is provided with a stationary raceway member forming a stationary raceway surface oriented substantially perpendicular to the slew axis. The rotary ring part is provided with a rotary raceway member forming a rotary raceway surface. Rolling elements are provided between the stationary raceway surface and the rotary raceway surface. The slew bearing further comprises an elastically compressible resilient insert sandwiched either between the rotary raceway member and the rotary ring part or between the stationary ring part and the stationary raceway member. The slew bearing further comprises an axial load sensor for monitoring an axial load on the slew bearing by measuring a distance over the resilient insert.

The invention relates to a base washer and bearing assembly. The invention particularly relates to a base washer that provides a homogeneous grease distribution and has the effect of reducing friction on the contact surfaces of the needle rollers, and a bearing assembly comprising this base washer.

The invention relates to agricultural equipment. The suspended bearing coupling includes a hub with a bore for housing an internal connecting shaft. A coupling suspension is attached to the mid-section of the hub outer surface. The external surfaces of both sides of the hub are designed to accommodate antifriction bearings, and a flange is installed on the outer surface of each antifriction bearing. A slide bearing is installed between the inner surface of each flange and said inner connecting shaft. Coaxial bores are made in each flange and in the inner connecting shaft to enable a spaced accommodation of the pins connecting the flange with the inner connecting shaft. The pins are designed to prevent their falling out. The inner connecting shaft in the bore of the hub is spaced by a gap, and the outer surfaces of each flange enable their fastening to outer shafts.

The utility model discloses a rotating shaft assembly for a medical tower crane, which comprises a rotating shaft inner cylinder, a rotating shaft outer cylinder, a mounting ring, a bearing piece, a first plane bearing and a second plane bearing, and the rotating shaft inner cylinder comprises an inner cylinder body and an inner cylinder mounting seat connected to one end of the inner cylinder body; the rotating shaft outer cylinder comprises an outer cylinder body and an outer cylinder mounting base connected to one end of the outer cylinder body, the outer cylinder body sleeves the outer periphery of the inner cylinder body, the outer cylinder mounting base is located at the end, away from the inner cylinder mounting base, of the outer cylinder body, and the mounting ring is in threaded connection with the end, away from the inner cylinder mounting base, of the inner cylinder body; the bearing piece is installed between the outer circumferential wall of the inner barrel body and the inner circumferential wall of the outer barrel body, in the axial direction of the rotating shaft mechanism, the bearing piece is movably connected with the inner barrel installation base through a first plane bearing, and the bearing piece is movably connected with the installation ring through a second plane bearing. The rotating shaft assembly solves the problems that an existing rotating shaft assembly is poor in bias load bearing capacity and unstable in rotation.

The invention relates to a bearing device (200, 202, 300, 400, 500) for a reduction gear (11) for an electromechanical power steering system, having a first end (251) and a second end (252) opposite the first end (251), a contact portion (250) being provided between the first end (251) and the second end (252), and further having a bearing portion (260) for supporting a drive element (13). The aim of the invention is to improve the support of the drive element (1) of said bearing device. This aim is achieved, according to the invention, in that the bearing portion (260) is designed as an opening which extends from the first end (251) towards the second end (252) and a recess (253) extends from the second end (252) towards the first end (251), the opening (260) being radially spaced from the recess (253).

A leg assembly (102) of a tricone bit includes a cone and a leg fitted within the cone. The leg comprises an axis (232) defining an axial center of rotation of the cone, a first raceway for receiving a first row of bearings (202), a second raceway for receiving a second row of bearings (206), and a third raceway for receiving a third row of bearings (210), the first raceway, the second raceway, and the third raceway are disposed at a distal end (204), a mid-portion (208), and a proximal end (212) of the leg between the cone and the leg. A first gap of the first row of bearings of the first raceway is smaller than a second gap of the second row of bearings of the second raceway, the second gap being smaller than a third gap of the third row of bearings of the third raceway, such that the first row of bearings initially share a majority of the radial loads exerted on the tricone bit.

A lubrication device for planetary gear bearings of a planetary transmission (1), the planetary transmission (1) comprising a planet carrier (2) with two carrier webs (3), at least one bearing pin (4) arranged on the carrier webs (3), a rolling bearing (5) arranged on the bearing pin (4), a planetary gear (8) mounted via the rolling bearing (5), and two thrust plates (9) arranged on both sides of the planetary gear (6) between the planetary gear (6) and the carrier webs (2). at least one channel-like recess (12, 14) is formed on at least one carrier web (3) on its surface facing the planetary gear (8), via which lubricant fed from the radial outside of the thrust plate can be fed to a bearing area in the area between the thrust plate and the carrier web (3) or lubricant flowing out from the bearing area can be discharged radially to the outside in the area between the thrust plate and the carrier web (3).

The invention relates to a powertrain (102) for a wind turbine (100) comprising a planetary transmission (10) for a wind turbine (100) which is driven via a rotor (106), comprising at least one planetary stage (14) which rotates about a rotational axis AD in a transmission housing (12), wherein the at least one planetary stage (14) has a planet carrier (16) and a ring gear (20), and the planet carrier (16) or the ring gear (20) is at least indirectly drivingly connected to the rotor (106). The planet carrier (16) has a plurality of planet gears (18) which rotate in the planet carrier (16), are radially mounted on plain bearings, and mesh with the ring gear (20) and a sun gear (22) in a reciprocal manner. Guide elements (24) are provided between the transmission housing (12) and the planet carrier (16). By virtue of the guide elements (24), the self-centering function of the toothed elements, i.e. planet gears (18) and sun gear (22), is facilitated in the planetary stage (14) in a controlled manner and is supported so as to reduce the weight.

A gearbox assembly for a turbine engine includes a plurality of planetary gears. Each of a plurality of planetary gears is associated with a planetary pin. A plurality of planetary bearing rollers are disposed between the planetary pin and each of the plurality of planetary gears. The plurality of planetary bearing rollers are configured to transmit rotation of each of the plurality of planetary gears to the planetary pin. The rolling bearing cage is configured to guide and position the plurality of planetary bearing rollers such that the plurality of planetary bearing rollers are equidistantly distributed, the rolling bearing cage having an inner diameter surface facing the planetary pin and an outer diameter surface facing away from the planetary pin. The outer diameter guide ring is disposed radially outward of the outer diameter surface for holding the rolling bearing cage.

A gearbox assembly for a turbine engine, the gearbox assembly including a plurality of planet gears. Each of the plurality of planet gears is associated with a planet pin. A plurality planet bearing rollers are disposed between the planet pin and each of the plurality of planet gears. The plurality of planet bearing rollers are configured to transfer a rotation of each of the plurality of planet gears to the planet pin. A rolling element bearing (REB) cage is configured to guide and to position the plurality of planet bearing rollers so that the plurality of planet bearing rollers are equally spaced apart, the REB cage having an inner diameter surface facing the planet pin and an outer diameter surface facing opposite to planet pin. An outer diameter guide ring is disposed radially outward of the outer diameter surface to hold the REB cage.

A slew bearing (1) for rotatably supporting an object on a base about a slew axis. The slew bearing comprises a stationary ring (2) and a rotary ring (3) part. The stationary ring part is provided with a stationary raceway member forming a stationary raceway surface oriented substantially perpendicular to the slew axis. The rotary ring part is provided with a rotary raceway member (7) forming a rotary raceway surface. Rolling elements (9) are provided between the stationary raceway surface and the rotary raceway surface. The slew bearing further comprises an elastically compressible resilient insert (8) sandwiched either between the rotary raceway member and the rotary ring part or between the stationary ring part and the stationary raceway member. The slew bearing further comprises an axial load sensor (10) for monitoring an axial load on the slew bearing by measuring a distance over the resilient insert.

The invention proposes a wind turbine (100) with a rotor bearing (1), wherein the discharge chambers (7) on both sides of the rotor bearing (1) are connected to one another via a plurality of passages (5) through an outer ring (2) of the rotor bearing (1), the passages being distributed over the circumference of the outer ring (2), and the axis (A) of the rotor bearing (1) is arranged at an angle of 2° to 10° to the horizontal (H) in order to promote the flow of leakage oil through the passages (5).

The present disclosure relates to a kinetic energy storage machine (100) comprising: a rotor (200) having an axial extension in an axial direction (AD) and a radial extension in a radial direction (RD), a supporting structure (20a) for supporting the rotor (200), the rotor (200) being adapted to rotate around a rotor (200) axis of rotation (A), extending in the axial direction (AD), relative to the supporting structure (20a), and a bearing arrangement (10) comprising: at least one high-speed bearing (14), the kinetic energy storage machine (100) being adapted to assume a high-speed bearing suspension condition in which load transfer between the rotor (200) and the supporting structure (20a) is achieved via the high-speed bearing (14), thereby providing a high-speed bearing suspension with a first radial stiffness, and at least one low-speed bearing (12), the kinetic energy storage machine (100) being adapted to assume a low-speed bearing suspension condition in which load transfer between the rotor (200) and the supporting structure (20a) is achieved via the low-speed bearing (12), thereby providing a low-speed bearing suspension with a second radial stiffness, the second radial stiffness being higher than the first radial stiffness, the kinetic energy storage machine (100) further being adapted to assume a low-speed bearing release condition in which load transfer between the rotor (200) and the supporting structure (20a) via the low-speed bearing (12) is disabled, wherein the kinetic energy storage machine (100) is configured so as to assume the low-speed bearing release condition in response to detecting that a rotational speed of the rotor (200) is above a low-speed bearing (12) shift rotational speed.

A double-row ball bearing, in particular for adjusting the blades of a tail rotor of a helicopter, including an inner ring and an outer ring as the bearing rings, and balls rolling off between the bearing rings and designed to transmit axial forces between the bearing rings in both directions, the outer ring being tiltably supported in a housing part.

A bearing assembly includes a shaft having an axis of rotation and a hub mounted around the shaft. The bearing also includes a bearing having an inner bearing race attached to the shaft, an outer bearing race attached to the hub, rolling elements arranged between the inner bearing race and the outer bearing race, and a protective device suitable for protecting the bearing from overloads. The protective device includes a first ring and a second ring borne by a support from among the shaft and the hub, the first ring being arranged at a distance from the second ring when the bearing assembly is subjected to a load lower than a threshold load; the first ring making contact with the second ring when the bearing assembly is subjected to a load higher than said threshold load.