Abstract: A method of manufacturing a nut in a screw and nut system comprises a first material removal stage to form an internal thread of which the value of the nominal diameter is lower than a predetermined final nominal diameter value and a second plastic deformation stage of the thread formed during the first stage to obtain the predetermined final value by material displacement.

Abstract: A static sealing device for a wheel hub assembly, an inner ring operatively associated with a constant velocity joint, an outer ring coupled with the wheel hub, including a first sealing assembly arranged between the inner ring and an outer ring for protecting respective rolling bodies, and a second sealing assembly integrally carried by the inner ring, arranged straddling the wheel hub and the outer ring of the joint; wherein the first sealing assembly includes a shield anchored to the inner ring of the bearing and provided, on the first side of the joint, with a flange portion carrying an annular signal generating element towards the joint which leaves an annular radially inner area of the flange portion uncovered, defining an annular seat between it and the inner ring in which an edge radially folded on the outside of a tubular core of the second sealing assembly is coupled.

Abstract: A fluid seal assembly (the assembly) of the present invention is disposed between an outer surface, i.e. engine block or any other part that requires application of the assembly and a rotatable member, such as, for example a shaft, wherein the assembly circumscribes the shaft and lubricated the shaft and the same rotates around the axis. The assembly includes at least three members: a casing unit, a sealing ring unit, and a collar. The assembly eliminates problems associated with prior art designs such as static leakage of oil, clogging up the spirals with carbonized oil that negatively impact lifecycle of the fluid seals.

Abstract: A radially outer stationary bearing race (11) defines, on one if its sides, an inner cylindrical surface (29) and a radial side surface (32). A radially inner bearing race (15) has an outer cylindrical surface (26) facing the inner cylindrical surface (29). A magnetic encoder (23) in form of an annular disc is fixed onto the outer cylindrical surface (26) of the inner race (15) and is protected by a cover of non-ferromagnetic material (30) mounted on the outer race (11) and abutting against the radial side surface (32). The encoder (23)extends radially from the outer cylindrical surface (26) of the inner race (15) up to near the inner cylindrical surface (29) of the outer race (11). No sealing device is mounted in the gap between the cylindrical surfaces (29) and (26).

Abstract: A linear actuator comprising a spindle, a spindle nut, a transmission, an electrical motor, and an actuation element, is arranged to linearly move the actuation element by means of an interaction of the spindle and the spindle nut, which interaction is being driven by the electrical motor through the transmission. A position of the actuation element, the relative position between spindle and spindle nut, is determined by means of an absolute rotary position sensor and a counter. The counter keeps track of the number of under-flows and over-flows the absolute rotary position sensor generates during movement of the actuation element. A combination of a value from the absolute rotary position sensor and a count from the counter determines the position.

Abstract: A wheel hub assembly with two rows of rolling elements has a central axis of rotation and inner raceway and outer raceways for each row of elements, the associated inner and outer raceways being axially displaced in accordance with a respective angle of contact and along a respective load line such that the assembly is capable of accommodating combined loading. The raceways of each row of rolling elements have osculation ratios which are defined by the ratio between the radius of curvature of the raceways and the outside diameters of the rolling elements of the associated row of rolling elements. The osculation ratios of a first one of the two rows of the rolling elements are different than the osculation ratios of a second one of the two rows of the rolling elements.

Abstract: An assembly jig for a radial roller bearing comprises a retaining structure having a plurality of axially-projecting projections configured to retain a plurality of roller bodies disposed in a ring-shape during a bearing assembly process. The roller bodies are supportable in a first radial direction on a first component and each roller body contacts two adjacent projections in a second radial direction, which is opposite of the first radial direction. The projections are configured to press the roller bodies against the first component and such that a portion of the roller bodies projects past the projections in the second radial direction. The assembly jig is removable from the roller bearing in the axial direction after final assembly of the roller bearing.

Abstract: The invention relates to a method of predicting when a grease in a grease-lubricated rolling element bearing (10) will reach an unacceptable condition. According to the invention, a time series of a parameter is measured and recorded, whereby the parameter is directly or indirectly indicative of a degree of breakdown of a lubricant film separating the rolling contacts. With the aid of processing means (22), the time series is analyzed, a dynamic model is constructed that predicts the evolution of parameter values, and the model is used to extrapolate the time series. A time at which a predefined limit will be exceeded is then determined from the extrapolated time series, whereby the predefined limit is representative of unacceptable grease condition. The method according to the invention can be used to predict a relubrication interval for an individual grease-lubricated bearing.

Abstract: A method for preparing titanium alloy that is created to be formed into a bearing component, wherein the titanium alloy comprises from 5 to 7 wt % Al, from 3.5 to 4.5 wt % V, from 0.5 to 1.5 wt % Mo, from 2.5 to 4.5 wt % Fe, from 2.5 to 4.5 wt % Fe, and from 0.05 to 2 wt % Cr. The alloy can optionally include one or more of the following elements: up to 2.5 wt % Zr, up to 2.5 wt % Sn, and up to 0.5 wt % C. The balance of the composition comprises Ti together with unavoidable impurities. The alloy is heated to a temperature T below the (?+?/?)-transition temperature T? and then quenched. The alloy is then aged a temperature of from 400 to 600° C.

Abstract: This support member (60) holds at least two sensors (80) with respect to a rotating encoder washer (20) of a rolling bearing assembly (2). It includes an annular ring (62) centered on a central axis (X60) and provided with an inner radial surface (64) which forms an abutment and centering means for each sensor (80) with respect to the central axis (X60). The support member also includes foot parts (70) extending perpendicularly with respect to the inner radial surface (64) and provided with holes (72, 74, 76) adapted for the passage of connection pins (82, 84, 86) of the sensors (80), in order to connect these sensors (80) to a printed circuit board (50).

Abstract: Rolling bearing (1) comprising an inner ring (3), an outer ring (2), at least one row of rolling elements which are arranged between raceways made on the rings (2, 3) and an ring gear (6) fixed to one of the rings (2). The ring gear (6) is formed of at least two independent gear segments (7, 8, 9, 10, 11, 12) which are each provided on their inner or outer peripheral surface with a plurality of meshing means (7b, 8b, 9b, 10b, 11b, 12b) and fixed only to one of either the inner or outer rings (3) of the rolling bearing (1), the circumference of the ring gear (6, 20) being substantially equal to the circumference of the combination of the independent gear segments.

Abstract: Rolling bearing (1) comprising an inner ring (3), an outer ring (2), at least one row of rolling elements which are arranged between raceways formed on the rings (2, 3) and a ring gear (6) that has a circumference of less than 360° and is fixed to one of the rings (2). The ring gear (6) is formed of a single gear segment (7) which has a circumference substantially equal to the circumference of the ring gear (6) and is provided on its inner or outer peripheral surface with a plurality of meshing means (7b) and fixed only to one of either the inner or outer rings (3) of the rolling bearing (1).

Abstract: A roller bearing assembly includes at least one roller bearing having an outer ring, an inner ring, and roller bodies disposed therebetween, as well as a radial shaft seal ring having a support ring and a seal lip. At least one end side of the outer ring includes a receptacle for retaining the support ring. The support ring extends axially in an outwardly projecting manner beyond the end side of the outer ring and up to an outer circumferential surface of the inner ring. The seal lip connected with the support ring sealingly abuts on the outer circumferential surface of the inner ring at a position that is axially internal of the end side of the outer ring.

Abstract: A lubricant supply device comprises a tank configured to hold a lubricant. At least one movable piston unit is disposed in the holding tank and at least partially defines a lubricant chamber. The lubricant chamber has at least two openings, of which one is a lubricant inlet and the other is a lubricant outlet. A first one of the openings is disposed in the movable piston unit.

Abstract: A cage for a rolling bearing which cage is intended to ensure the circumferential spacing of a row of rolling elements and comprises first pockets 28 for first rolling elements of the row, which pockets are provided with axial retention means 38, 46 for the axial retention of the cage onto the said rolling elements, and second pockets 26 for the second rolling elements of the row, which pockets have no axial retention means for retaining the cage on the said rolling elements. The distribution of the first pockets 28 about the periphery of the cage is uneven.

Abstract: The roller bearing comprises an inner ring 14, an outer ring 16, at least one row of rolling elements 18, 20, 22 which are arranged between the said rings in order to form an axial thrust which can transmit axial forces, and a row of rolling elements 24 arranged between the said rings in order to form a radial thrust which can transmit radial forces. The inner ring comprises an annular groove 36 which extends towards the interior from an outer surface 14c of the said ring, and forms a raceway for the rolling elements 24 of the radial thrust.

Abstract: A device including an annular groove obtained on a lateral assembly surface of a ring of a bearing in contact in use with a seat with respect to which the ring must remain stationary; a first element shaped as a circumferentially open ring and preferably defined by a circumferential ring segment having a non-constant radial thickness (S) and always smaller than a radial depth (P) of the annular groove, mounted within the annular groove free to move circumferentially in the annular groove; and a second element, shaped as a closed ring, which engages the annular groove, within which it is mounted radially superimposed on the first element on the side of the lateral assembly surface and having a constant radial thickness (F) such that the second element protrudes radially and overhangingly with respect to the lateral assembly surface at least in correspondence with part of the first element.

Abstract: An electromechanical actuator includes a drive motor having rotatable drive shaft. A magnetic element is disposed on the drive shaft. A rotary-to-linear motion converter is driven by the rotatable drive shaft and includes a non-rotating actuator body that is linearly movable in a traveling direction. A Hall-effect sensor is disposed in a stationary manner proximal to the magnetic element disposed on the drive shaft. A controller is in electronic communication with the Hall-effect sensor. The controller counts the number of impulses output by the Hall-effect sensor when the drive shaft rotates relative to the Hall-effect sensor, and turns off the drive motor after a predetermined number of impulses have been counted since the start-up of the non-rotating actuator body. The controller may also count the number of times that the current of the drive motor exceeds a predetermined maximum value and store this counted value in a memory element.

Abstract: A transmission shaft for transmitting rotational movements including a tubular body having at least one tubular composite assembly including a plastic matrix and strengthening elements, at least one insert positioned at one end of the body and which is secured to the body in an interface area between the insert and the composite assembly, and at least one slug passing radially through the insert and the body for keeping the strengthening elements in place. The at least one insert has at least one recess receiving a part of the strengthening elements to maintain the strengthening elements in the interface area.

Abstract: A sealing device including an annular reinforcing insert couplable with a wheel hub in use and an annular sealing element carried by the reinforcing insert and including at least one sealing lip cooperating with a spacer carried by a wheel support pin in use; the reinforcing insert delimits an annular chamber arranged directly adjacent to the annular sealing element in axial direction, and the device further includes a shield mounted in floating manner with radial and axial play in the annular chamber, including a first radial end, which extends to the lip and couples in forced manner with the spacer in use, and a second radial end, opposite to the first, which cooperates with the reinforcing insert and with the annular sealing element to create a labyrinth seal in the annular chamber interposed in use between the annular lip and an environment (E) external to the wheel hub.