Abstract: A bearing housing with a measurement device incorporating at least two sensors arranged to detect vibrations of a shaft rotatable supported in a bearing in the bearing housing, and arranged to communicate with external data collecting and/or processing means. The bearing housing has a base portion which, for weight reducing reasons, is provided with recessed cavities opening downwards. The sensors are positioned in one such cavity in a completely recessed manner and are arranged to detect vibrations in two perpendicularly opposed directions.

Abstract: A method for detecting a roller failure at a roller in a continuous casting machine having a plurality of rollers arranged in a row and rotatably supported in bearings for transporting material produced in the machine involves determining a radial target load value exerted by the material on a roller, measuring the actual load value on at least each second roller in the row of rollers, comparing the measured actual load value with the determined target load value, detecting a possible divergence between the actual load value and the target load value, and establishing the presence of a roller failure upon detection of such divergence.

Abstract: Sealing device (1) for rolling contact bearings, the device (1) presenting two rigid shields (3, 4) which face each other in order to form a labyrinth opening (13) which is radially delimited towards the inside by a lateral surface (12), and by a encoder wheel (2) which is supported by a first shield (3) of the said two shields (3, 4) and which is arranged in such a way as to be radially aligned to the labyrinth opening (13); at least one sealing lip (20) being situated inside the labyrinth opening (13), and extending towards the said first shield (3) starting from a second shield (4) of the said two shields (3, 4) in order to face the said lateral surface (12).

Abstract: A bearing seat provided in or on a cylindrical surface of a component to which the bearing is to be mounted is constructed so that the component at which the bearing seat is provided is softer at least in the surface region than the ring(s) of the bearing that is to be interconnected to the component via the bearing seat. In addition, either one of the bearing seat and the bearing ring in their surfaces facing each other has a number of surface irregularities arranged ring to cause deformation to the softer surface region under a mutual axial mounting motion between the bearing seat and the bearing ring to thereby form a mutual grip between the seat and the bearing ring.

Abstract: A rotary disc for a disc plough or the like includes a circular disc having a circumferential cutting edge and a centrally located hub having a bearing seat for a bearing for mounting on a shaft journal incorporated in a frame. The hub is designed as a separate annular sleeve detachably attachable to the plough disc, with the sleeve having the bearing seat provided in the inner surface of the hub. At least a surface region of the hub is softer than the rings of the bearing to be interconnected to the hub via the seat, and the seat in its surface facing the bearing has a number of surface irregularities arranged, under a mutual axial mounting motion between the seat and the bearing ring to cause a deformation of the softer surface region, thereby forming a mutual grip between the seat and the bearing ring.

Abstract: Tapered rolling bearing (1) which presents an inner race (2) which is provided with a guiding rim (5) along one of its own sides; a ground rolling surface (7) which is radially obtained outside the inner race (2) and which is axially delimited by the guiding rim (5); a crown of tapered rollers (4), each of which is suitable for rolling in contact with the rolling surface (7) and which is extremely close to the guiding rim (5); and a grinding relief (8), which is obtained between the rolling surface (7) and the guiding rim (5) in order to permit the grinding of the rolling surface (7) itself, and which is provided with an annular outlet edge (9) which confines with the rolling surface (7); the annular outlet edge (9) of the grinding relief (8) being arranged at a determined distance from the rolling surface (7), said distance being measured transverse to the rolling surface (7) itself.

Abstract: An anti-friction bearing device comprising an outer ring (11) provided with an outer surface and a bore on which a toroidal bearing inner race (14) is formed, an inner ring(15) which is provided with a bore and a cylindrical outer surface on which a toroidal bearing outer race (18) is formed, a row of balls (19) which are disposed between the two bearing races, and a cage which can maintain a regular circumferential spacing between the balls. The ratio between the radial thickness of the outer ring, when taken between the bottom of the bearing inner race and the outer surface of the outer ring and the diameter of the balls ranges from 0.4 to 0.7. The ratio between the radial thickness of the outer ring, when taken between the bottom of the bearing inner race and the radial thickness of the inner ring when taken between the bottom of the outer bearing race and the bore of the inner ring ranges from 1.1 to 1.6.

Abstract: A process for producing a component of metal includes a) carrying out a heat treatment to harden the component, which ends with a heating process, especially with a tempering or microstructural transformation process, at a given temperature (TE); carrying out at least machining of the component at room temperature (TU) in order to provide its desired geometrical shape; and c) subsequent heating of the component to a temperature (T) which is greater than room temperature (TU).

Abstract: A vibration data processor and processing method uses a frequency domain filter having low pipeline delay and accurate time domain signal reconstruction. The filter may be user configurable, and the filter may receive input data from a variable number of decimation stages. Sequences of extracted vibrational features are routed to a variable length output buffer for event detection.

Abstract: A continuously variable transmission unit comprises two pulley sets (1, 2) which each comprises a pair of discs (66, 67) and a screw mechanism (12, 13) which is concentrated with respect to a pulley set (1, 2) for moving the discs (66, 67) of the pulley set (1, 2) towards and from each other, each pair of discs (66, 67) enclosing a V-shaped groove, a belt (5) stretching between the pulleys and accommodated in the grooves thereof, the screw mechanism (12, 13) being controllable by a control device, the discs (66, 67) of each pulley set (1, 2) being accommodated on a support shaft (68). The screw mechanism (12, 13) is accommodated in the bore in the shaft (68) and engaging at least on of the discs (66, 67).

Abstract: A precision spindle unit for low friction performance includes a tubular housing surrounding a shaft, and first and second rolling bearings mounted on the shaft within the housing. The first bearing is axially arrested between the flange of a locking washer fixed to the shaft and a shoulder on the shaft. A second locking washer is fitted to the shaft, and a resilient member is provided between the second locking washer and a side of the inner race ring of the second bearing. The axially inwardly facing side of the outer race ring of the second bearing engages an inwardly projecting shoulder in the housing, with the second bearing being biased between the resilient member and the inwardly projecting shoulder. The locking washers define a slot seal at each axial end of the housing to provide a seal at the outwardly facing sides of the first and second bearings.

Abstract: A method for detecting a seized or still standing roller in a track of rollers in a continuous casting machine, in which each roller is rotatably mounted in supporting members and is arranged with its axis substantially perpendicular to the longitudinal extent of the track so that the rollers are arranged to transport elongated material produced in the machine. The method includes measuring a load exerted on at least one supporting member of each roller, with the load being substantially parallel with the extent of the track. The existence of a seized or still standing roller is established when the load deviates from a predetermined value by virtue of a force induced on the roller by seizure or stoppage of the roller at the contact with the transported material.

Abstract: A method for detecting an at least partly bulging portion of an elongated material produced in a continuous casting machine in which the machine has a plurality of rollers arranged in two tracks converging towards each other to transport the material, with the rollers being divided into at least two roller portions each rotatably mounted in supporting members. The method involves measuring the radial load exerted by the material on each supporting member of the roller portions of a roller, comparing the radial load values of the supporting members arranged in the ends of roller portions facing away from each other with those of the supporting members arranged in the ends of the roller portions facing each other to ascertain a divergence, and establishing that an at least partly bulging portion of the material exists where the divergence exceeds a predetermined value.

Abstract: A method for detecting a misaligned roller portion of a roller in a continuous casting machine, in which the machine includes rollers arranged in a row after each other, with the rollers being divided into at least two roller portions each rotatably mounted in supporting members and arranged for transporting produced material. The method involves measuring the radial load exerted by the material on each supporting member of the roller portions of a roller, comparing the radial loads of the supporting members at the outer ends of the roller with each other, comparing the radial loads of the supporting members at the inner ends of the roller with each other, and determining a misaligned roller portion where the divergence between the radial loads of the supporting members of the outer ends of the roller and/or the supporting members of the inner ends of the roller exceed a predetermined value.

Abstract: Clutch bearing device comprising an actuating element intended to be mounted on an operating element 2. The actuating element comprises a rolling bearing 1 provided with a rotating race 15 and with a non-rotating race 9, the said bearing 1 being able to be displaced radially with respect to the operating element 2 to self-align with the clutch diaphragm, the non-rotating race 9 comprising an inwardly-directed radial portion 13. The device comprises a means of axially securing the actuating element to the operating element 2. The device comprises a self-alignment member 21 centered on the non-rotating race 9 and provided with axially elastic elements 23.

Abstract: A screw actuator comprises a screw (1) and a nut (2) which are each provided with at least a helical groove (3,4), and a series of rollers or balls (5) which are in rolling contact with the grooves (3,4). A sleeve (6) is provided which surrounds the nut (2) at least partly. The sleeve (6) may carry a seal (7) which acts between the nut (2) and screw (1); e.g. a wiper seal. The seal (7) may be fixedly connected to the nut (2), and frictionally engage the screw (1).

Abstract: Protection device (1) for an encoder (2) in a rolling bearing (3) presenting an outer race (5) which is arranged in contact against a fixed support (6), the device being interposed between the encoder (2) itself and a reading sensor (17) which is supported by the support (6) itself, and being provided with: a fixing race (18) which is shrink fit onto the outer race (5) of the bearing (3) and frontally to a shoulder (15) of the support (6); a protection shield (19) which extends from the fixing race (18) towards an inner race (4) of the bearing (3) in a position which is frontal to both the encoder (2) and the sensor (17); and a sealing element (30), which is integral to the fixing race (18) and the shoulder (15) for the static waterproofing of the support (6).

Abstract: The invention concerns an instrumented bearing (1) comprising an outer ring (2), an inner ring (4), at least a row of rolling elements (6) arranged between a raceway of the outer ring (2) and a raceway of the inner ring (4), an assembly detecting rotation parameters comprising a sensor unit (11) integral with the non-rotating ring and supporting a sensing element (14) and a rotating coding member (16) forming a rotating part with the rotating ring, the coding member comprising an active part moving in rotation in front of the sensing element, the sensing unit and the non-rotating ring forming a fixed part. The rotating part comprises indexing means external to the active part of the coding element and capable of positioning at an angle said rotating part relative to a reference of the fixed part in a position wherein the coder generates in the sensing element a reference signal.

Abstract: Sensor-holding lid for a wheel hub bearing (2), the lid (1) presenting a base wall (7) which is externally delimited by a peripheral border (8), an axial ledge which is integral to the wall and which is provided with a passing hold (9) for housing the sensor, and a cylindrical wall (10) which is transverse to the base wall (7) and which is arranged radially inside the peripheral wall (8) in order to be fixed onto an external border (6) of the bearing (2); at least two annular static sealing elements (16,17) which are made of rubber and which are co-moulded, respectively, into the peripheral border (8) on the outside of the cylindrical wall (10) and inside an entry border (14) of the passing hole (9).

Abstract: A freewheel device includes at least one cage, a plurality of wedging members retained by the cage, and a member having a cylindrical surface which comes into contact with the cage. The cage has an axial portion provided with windows which receive immobilizing members and at least one generally annular and substantially radial portion having a flexing area and a plurality of tongues which are of substantially radial shape in a relaxed state and which flex in an axial direction so that ends of the tongues are in frictional contact with the cylindrical surface so that they are circumferentially and axially connected to the surface.