Abstract: A method for treating a steel bearing component includes subjecting the steel bearing component to a scouring treatment to impart compressive residual stress to a surface region thereof and subsequently nitriding the steel bearing component 1. The resulting steel bearing component exhibits a nitrided case depth of about 0.002-0.014 inches and a compressive residual stress value greater than ?120 ksi is achieved at a depth of 0.002 inches and ?20 ksi to a minimum depth of 0.010?. The steel bearing component may be a race and/or a rolling element, such as a ball.

Abstract: An interlocking thrust washer is presented. The thrust washer including a first annular upper ring having first inner and outer side circumferential surfaces and first top and bottom surfaces. The upper ring providing at least two holes that extend therethrough the first top and bottom surfaces and a first annular lower ring having second inner and outer side surfaces and second top and bottom surfaces. The first lower annular ring includes at least two annular projections extending upward from the second top surface. The at least two annular projections align with the at least two holes to create an interlocking fit between the first annular upper and lower rings. The interlocking fit allows the first upper and lower rings to combine and function as the single element thrust washer 10 once interlocked together. The interlocking fit further prevents any rotation between the first upper and lower annular rings during operation.

Abstract: A rotation sensor (19) is used for detecting relative rotation between a rotatable member (11, 12) and a non-rotatable member (10) of a bearing unit. The sensor (19) is retained in a sensor carrier body (18) of plastic material and annular shape. An annular supporting insert (17) serves to mount the sensor carrier body (18) onto the non-rotatable member (10) with the sensor operatively facing an impulse ring (15) secured to a rotatable member (12) of the unit. The sensor carrier body (18) and the supporting insert (17) provide a lock and seats (18a, 18c, 18d, 18m, 18n; 17c, 17d, 17m, 17n) for releasably locking the sensor carrier body (18) to the supporting insert (17).

Abstract: A seal includes a sealing lip having a sealing region with a pumping structure that can abut on a first component. The pumping structure causes a liquid medium to move in a direction from a first axial side of the seal towards or to a second axial side of the seal when the first component rotates relative to a second component. The pumping structure includes at least one pumping groove that extends along a direction of extension and at least one retaining structure disposed in the at least one pumping groove. The at least one retaining structure reduces a cross-section of the at least one pumping groove, in at least one direction perpendicular to the direction of extension, to a value of between 50% and 90% of an extension of the cross-section of the pumping groove outside the at least one retaining structure along the at least one direction.

Abstract: The bearing (10) according to the invention includes an outer ring (12), with a shape generally of revolution around an axis (X), an inner ring (14), with a shape generally of revolution around the axis (X), positioned coaxially to the outer ring (12), and rolling elements (16), for example balls, positioned radially between the inner ring (14) and the outer ring (12). The rolling elements (16) are at least partially in direct contact with at least one of the inner (14) and outer (12) rings. The ring (12, 14) at least partially in direct contact with the rolling elements (16) is made with a base of a powder of a sintered material.

Abstract: An apparatus for receiving a plurality of mold assemblies having a first mold portion and a second mold portion operably connected together for forming parts. The apparatus includes a mold holding member and a pair of spaced apart support members extending from the mold holding member to a manufacturing floor. A carriage device is cooperable with the mold holding member for engaging and moving the mold assembly. A lifting mechanism is used for moving the carriage device relative the mold holding member to move the mold assembly to be engaged with mold holding member. A turn table adjacent to the mold holding member holds the mold assemblies and is movable relative the mold holding member thereby replacing the mold assemblies. A controller is operably connected to the mold holding member and the turn table thereby moving the turn table relative the mold holding member to interchange the mold assemblies.

Abstract: The invention refers to a device for attachment to a rotating part (1) of a railway vehicle incorporating an arrangement, which is adapted, during movement of the railway vehicle, to detect and evaluate parameters related to the railway vehicle service and/or to an incipient fault state of wheel bearings (2) in the railway vehicle, and which device (12) is arranged to emit signals representative for the detected and evaluated parameters.

Abstract: A bearing assembly is for rotatably coupling a shaft and a housing includes an inner ring with an inner surface disposable about the shaft, an outer ring disposed about the inner ring and having an outer circumferential surface, and a plurality of rolling elements disposed between the inner and outer rings. A retainer has a first end engageable with the shaft or housing and a second end engaged with the inner ring or outer ring. The retainer positions the inner or outer ring with respect to the central axis such that the ring is generally centered on the axis. The retainer is further configured to substantially prevent angular displacement of the inner or outer ring about the central axis and to bias the ring generally axially.

Abstract: The invention relates to a bearing (10) including an inner ring (12), an outer ring (11), and rolling bodies positioned between the inner and outer rings, one of the rings being rotary and the other not, the bearing further including: a first module (20) including at least one set of sensor(s) suitable for performing successive measurements of at least one parameter representative of the vibrations within the bearing; and a second module (20) suitable for determining a frequency representation of the signal corresponding to the successive measurements, and for obtaining a set of elements(s) representative of the frequency representation based on that frequency representation, so as to compare at least one representative element of the set with a corresponding reference element and identify a malfunction based on that comparison (10).

Abstract: The system comprises a roller screw mechanism 12 which is provided with a screw 16 which comprises at least a first outer threaded portion 18, a nut 20 and a plurality of rollers 24 which cooperate with the first outer portion 18 and an inner thread of the nut. The system further comprises a roller thrust bearing 14 which is mounted on a second outer portion 52 of the screw and which is provided with a bushing 50 and a plurality of rollers 56 which comprise flanks which cooperate with flanks of the second outer portion 52 of the screw and the bushing 50. The flanks of the screw, the bushing and the rollers are configured so that, during a rotation of the screw, the rollers 56 are fixed axially relative to the screw 16 and relative to the bushing 50.

Abstract: A method of rotating an output gear at a rotational rate that is slower than an input rotational rate. The input rotation moves a planetary gear in a circular motion about a central axis. A first stage external gear configuration of the planetary gear engages with an internal gear configuration of a stationary gear. The engagement rotates the planetary gear about a concentrically located planetary gear rotational axis. A second stage external gear configuration is rotated by and at a same rate the first stage external gear configuration. The first stage diameter and/or number of teeth differs from the second stage diameter and/or number of teeth. The planetary gear rotation in conjunction with the difference between the first and second stages causes the output gear to rotate respective to the stationary gear. Rotational positioning of the output gear can be monitoring and adjusted by controlling the input rotational rate.

Abstract: An apparatus of the present invention presents a housing for engaging a mold device that includes a top plate having a top mold and a bottom plate having a bottom mold. The top plate presents side edges presenting a plurality of male elements extending therefrom. A top portion of the housing presents a safety and locking device (the device) to secure the top plate. The device presents several plates movable relative one another to secure the top plate. In case of a power outage, an actuator cooperably connected with the device prevents a shaft, connected to one of the plates, to move back to its idle position thereby locking the top plate within the device to prevent disengagement of the top plate from the device.

Abstract: A cartridge bearing assembly for rotatably coupling a shaft with a housing includes a bearing having a central axis and opposing axial ends. The bearing includes first and second, axially spaced inner rings disposeable upon the shaft, at least one outer ring disposed circumferentially about the two inner rings, and first and second sets of rolling elements disposed between the inner and outer rings. A carrier includes a first tubular portion disposed generally about the bearing first axial end and a second tubular portion disposed generally about the bearing second axial end. The first and second tubular portions are coupled together to enclose the bearing, the carrier being at least partially disposeable within the housing bore so as to couple the bearing with the housing. Preferably, a coupler is provided to connect the first and second inner rings so as to establish preload within the bearing.

Abstract: A reduction gear assembly integrates a stationary section having a stationary internal gear configuration, an output section having an output internal gear configuration, an input shaft and planetary carrier comprising an input shaft having a shaft rotational axis and a planetary gear cam having a planetary gear rotational axis, wherein the shaft axis and cam axis are offset. A planetary gear comprising a planet wheel first stage and a planet wheel second stage is rotationally assembled to the planetary gear cam. The first stage planet wheel engages with the stationary gear. The second stage planet wheel engages with the output gear. Rotation of the input shaft rotates the planetary gear about a circular path. Engagement between the first stage and the stationary gear rotates the planetary gear. Second stage teeth engage with the output gear. Difference in first stage and second stage teeth counts causes rotation of the output section.

Abstract: A sensor bearing assembly rotatably couples a pulley sheave with a shaft and includes an inner member with a central bore receiving a portion of the shaft, two axially spaced inner raceway surfaces and a central portion between the raceways. An outer member is disposed about the inner member and disposeable within the sheave bore to rotatably couple the sheave with the shaft. The outer member has two axially spaced outer raceway surfaces disposed about the two inner raceway surfaces and a central portion between the outer raceways and disposed about inner member central portion to define an annular cavity. An annular detection member is disposed within the annular cavity and coupled with the outer member and a sensor is disposed within the annular detection member and connected with the inner member central portion. The sensor is configured to sense angular displacement of the detection member about the bearing axis.

Abstract: A device for changing a pitch of a blade of an impeller/propeller is disclosed. The device includes a linear actuator, a first bearing and a second bearing, allowing a relative axial movement between the first bearing and second bearing. The first bearing is mounted between a supporting structure of the rotor shaft and a non-rotary mechanical element, allowing a relative rotation between the supporting structure and the linear actuator. The second bearing is mounted between the second portion and a lever having a rotary point. Operating the linear actuator leads to an angular movement of the lever causing a change of the pitch of a blade, and when operating the at least one linear actuator, a force is generated that acts upon the non-rotary element, so that the rotor shaft is unaffected by the force.

Abstract: A flanged bearing ring has a tubular core of steel and an outer flange of a light metal in which there are formed axial through bores for accommodating bolts for mounting a wheel to the ring; fixed in each bore is a steel insert which forms a threaded inner cylindrical cavity extending between two opposite faces of the flange, and one or two transverse shoulders which are in contact with the material of the flange so as to oppose relative axial movements of the steel insert with respect to the flange.

Abstract: The invention resides in an assembly for rotationally supporting a wind turbine blade (110) relative to a wind turbine hub (120). The assembly comprises an intermediate ring (130) having an inner annular portion and an outer annular portion provided with means for attaching the turbine blade. The intermediate ring is rotatably mounted to the hub via a first bearing arrangement. According to the invention, the first bearing arrangement comprises a radial bearing (140) and a thrust bearing, whereby the inner annular portion is mounted to the hub via the radial bearing and the outer annular portion is mounted to the hub via the thrust bearing. The thrust bearing is a plain bearing comprising first and second sliding surfaces (151, 152) which are clamped to the hub between first and second clamping members (161, 162).

Abstract: A rotational and axial control spring includes a tubular casing, a shaft, and a plurality of elongated elastomeric members. The casing comprises a first end, a second end, and a plurality of interior surfaces extending therebetween defining a casing interior. The first end is smaller than the second end, forming a frustum shaped tubular casing. The cross sectional shape of the casing can include three (3) or more sides. The shaft is fabricated having a series of exterior surfaces, wherein a cross sectional shape of the shaft is similar to the cross sectional shape of the casing. The elastomeric members are formed as cylindrical frustums. The shaft is inserted within the casing interior. Each elastomeric member is positioned contacting a respective shaft exterior surface and a pair of adjacent casing interior surfaces. The elastomeric members each provide a rotational spring with adjustable resistant force and dampening functions. The tapered features provide an axial retention function.

Abstract: A rotational and axial control spring includes a tubular casing, a shaft, and a plurality of elongated elastomeric members. The casing comprises a tubular cross sectional equilateral convex polygon shape, the tubular shape extending uniformly between a first and second casing end. The shaft is fabricated having a cross sectional shape mimicking the equilateral convex polygon casing shape, a series of exterior surfaces extending longitudinally between a first smaller end and second larger end, wherein the exterior surfaces form a square frustum shape. The elastomeric members are formed as cylindrical frustums. The shaft is inserted within the casing interior. Each elastomeric member is positioned contacting a respective shaft exterior surface and a pair of adjacent casing interior surfaces. The elastomeric members provide rotational spring with adjustable resistant force and dampening functions. The tapered features provide an axial retention function.