Abstract: A roller bearing cage includes a first side ring, a second side ring and a plurality of axially-extending bridges connecting the side rings. A pocket for retaining a roller body is defined between the side rings and each two adjacent bridges. The two side rings and the bridges are integrally formed in one-piece. Reinforcement rings are disposed on one or both outer axial sides of the side rings. One or more connecting elements extend axially through the respective bridges, side rings and reinforcement rings. At least one axial end of the connecting element(s) directly or indirectly affixes the reinforcement ring(s) to the side ring(s).

Abstract: A hinge assembly comprises a first machine part having a first axis, a second machine part having a second axis and a hinge part pivotably connecting the first machine part with the second machine part. The first machine part is connected with the hinge part via at least one first hinge point configured to permit rotation of the first machine part around the first axis relative to the hinge part. The second machine part is connected with the hinge part via at least one second hinge point configured to permit rotation of the second machine part around the third axis relative to the hinge part. The third axis is perpendicular to the second axis.

Abstract: The invention relates to an arrangement in connection with a central lubrication system. The arrangement includes a lubricant vessel, a pump unit, a control unit, pipe systems, a pressure monitor unit, at least one lubricant feeder provided with at least one piston which moves due to the influence of the pressure of a lubricant present in the pipe system/object to be lubricated, and a movement monitor unit to monitor the operation of the feeder. The movement monitor unit includes a sensor part mounted to a nipple manufactured from a weakly magnetable material. The nipple includes a permanent magnet to generate a magnetic field, and a sensor for detecting movement of the piston, and an electronics part which processes a signal received from the sensor and forwards this processed signal to the control unit.

Abstract: A roller body for a roller bearing includes at least one cavity extending from an end face of the roller body, at least one retaining element is disposed in the cavity, and at least one sensor is disposed in the cavity, such as in or on the retaining element. The sensor is at least partially surrounded by an elastic material in a protective manner.

Abstract: A sealing element is provided for placement between first and second components, wherein the first component includes a cylindrical cavity with a step-shaped shoulder which narrows the cavity, and the second component is a cylindrical component for placement in the cavity. The sealing element comprises a stiffening body with a L-shaped longitudinal cut surface, with the first leg of the L shape being provided extending between the jackets of the cavity and of the second component, and the second leg being provided essentially in the region of the shoulder extending between the two components and at least in partial regions for touching the shoulder and the end side of the second component.

Abstract: A vibration device for a super finishing apparatus for super finishing a mechanical object is disclosed. It comprises at least two sliding means (1, 3), each comprising a guide (5, 7) and an element (9, 11) provided with a through hole (13) for receiving the guide (5, 7), allowing a relative movement between the guide (5, 7) and the element (9, 11) provided with the through hole (13), and a movable structure (15) fixed to the at least two sliding means (1, 3). Further, each sliding means (1, 3) presents at least one liquid fluid inlet (19) allowing a liquid fluid to enter the through hole (13) and suspend the guide (5, 7) in relation to an inner surface of the through hole (13). An attachment tool comprising the vibration device is also disclosed.

Abstract: A suspension thrust bearing device includes a lower cap, an upper cap having a surface portion, and a bearing disposed between the two caps. The bearing includes a lower race mounted on the lower cap, an upper race mounted on the upper cap, a plurality of rolling elements disposed between the two races, and a cage for retaining the rolling elements. The cage has a holding part for the rolling elements and a sealing lip extending from the holding part towards a periphery of the bearing, the lip including first and second integral legs extending in opposing directions. In certain embodiments, the first leg cooperates with the upper cap surface portion and the second leg cooperates with the lower race to form a seal. In other embodiments, the first leg cooperates with the lower race and the second leg cooperates with the upper cap surface portion to form a seal.

Abstract: A lubricated guide unit is for a motorcycle fork tube that includes an outer tube and an inner tube telescopically slidable within the outer tube. The guide unit includes upper and lower sliding bushings axially spaced apart and disposed within a cavity of the outer tube and guide sliding movement of the inner tube. A first sealing device is mounted at an open end of the outer tube and seals against the outer surface of the inner tube. A second sealing device is mounted in the outer tube and seals against the outer surface of the inner tube. The second sealing device is axially spaced from the first sealing device such that a sealed, lubrication chamber is defined between the two sealing devices and the facing circumferential surfaces of the inner and outer tubes, the two bushings being disposed within the chamber.

Abstract: A clutch-release bearing device includes a bearing having a non-rotating ring, a rotating ring with a rolling portion for supporting rolling elements, a contact portion extending from the rolling portion and radially away from the non-rotating ring, and a guide portion extending toward the non-rotating ring and disposed axially against the contact portion to form a fold, and at least one row of rolling elements disposed between the non-rotating and rotating rings. A wear ring is movably mounted on the guide portion of the rotating ring and is configured to contact the clutch mechanism diaphragm. The ring includes a polymeric body and a stiffening insert configured to stiffen the body, the body having a retaining portion disposed generally axially between the rotating ring rolling and contact portions and configured to axially retain the wear ring in relation to the rotating ring.

Abstract: A roller bearing cage includes pockets for retaining roller bodies. Radially-extending bulges are disposed on bridges that at least partially define the pockets so as to extend radially inwardly and/or radially outwardly. The radially-extending bulges reduce edge stresses in the cage that develop when the roller bodies contact the cage during operation of the roller bearing.

Abstract: A bearing arrangement comprises at least one bearing ring and at least one machine part with which the bearing ring is connected. The bearing arrangement is equipped with a device for detecting relative movement between at least one of the bearing rings and one of the machine parts. To facilitate the measurement of creep between one of the bearing rings and one of the machine parts, the device for detecting relative movement is located in or at the machine part and has a contact element which contacts the bearing ring, wherein a sensor element is arranged in or at the device to detect the relative movement between the device and the contact element.

Abstract: An adjusting device is provided for pivoting blades of a rotor via a transmission that is actuatable by a co-rotating, axially-displaceable actuating shaft. The adjusting device includes a roller bearing having a first side or ring that is attachable to the actuating shaft and a second side or ring connected with an actuating body that is non-rotatably supported in a support body. The adjusting device further includes a screw drive that axially displaces the actuating body within the support body to thereby linearly actuate the transmission.

Abstract: An actuator includes a screw mechanism (13) having a threaded nut (16) rotatable by an electric motor (11) about a longitudinal axis (x) and a screw (17) translatable along the axis between an axially extended position and an axially retracted position. The screw (17) is connectable to a wire (W) of a Bowden cable (C) having an outer sheath (S). The actuator has a casing (20) with a first, fixed transversal surface (18). A cup (50) is mounted axially slidably on the casing (20) and has a second transversal surface (51) adapted for resting against an end of the sheath (S). A spring (53) is compressed between the first, fixed transversal surface (18) and the sliding cup (50). The cup (50) is capable of reaching an axially extended position, corresponding to a released brake condition, and an axially retracted position towards the first fixed transversal surface (18), against the bias of the spring (53), corresponding to a brake actuated condition.

Abstract: The invention relates to a method for manufacturing a composite part intended for being subjected, via at least one attachment point, to pulling and/or compression forces. The method includes: winding fibers on a hub so as to form a portion of the wall of the part, and creating an externally convex rounded area at the location intended to form the area for applying the pulling and/or compression forces. The forces are radial thereto. The method also includes placing an insert on the convex rounded area, the insert including the attachment point or a mechanism for rigidly connecting the attachment point, and continuing to wind fibers so as to form the rest of the wall, while covering a portion of the insert and leaving the attachment point or the mechanism for rigidly connecting the attachment point accessible.

Abstract: The present invention relates to a flight unit control system (S), comprising at least one instrumented fastening bolt (6) connecting an aircraft carrier structure (34) and a load path (36a, 36b), the instrumented bolt having at least one measurement area (61; 62) for detecting that the load path in under load. The system comprises fastening means (4, 11) capable of locking the instrumented bolt (6) in a position relative to the aircraft carrier structure (34) and to the load path (36). The or each measurement area (61; 62) of the instrumented bolt (6) comprises two cavities and at least one strain gauge.

Abstract: In a sealing arrangement sealing at least one axial end section of a hollow shaft that is arranged in a cavity of a component, with the hollow shaft being adapted to route a fluid, a gasket is adapted to be located between the component and the shaft. The gasket is made with a sealing lip to adjoin the outer peripheral surface of the end section. The gasket also includes an axially projecting portion that projects axially beyond the end of the shaft. The axially projecting portion of the gasket surrounds a device for filtering the fluid and/or a device for determining the flow cross-section of the fluid.

Abstract: A roller bearing assembly includes at least one outer ring (16, 18) with an outer track (24, 26), which is surrounded on its outer side by an outer part (36), and at least one inner ring (20, 22) with an inner track (28, 30), which surrounds the inner part (52). The inner part (52) and the outer part (36) project axially beyond the inner ring (20, 22) and the outer ring (16, 18), so that an explosion prevention gap (62) is formed between the inner part (52) and the outer part (36). The explosion prevention gap (62) is at least substantially linear and cylindrical.

Abstract: The invention concerns a sintered ceramic component of silicon nitride or sialon suitable as rolling element in a bearing and a manufacturing method for making such ceramic components. The ceramic component has high density and a homogeneous and fine microstructure, giving the component excellent mechanical properties. Manufacturing of the sintered ceramic component by SPS is cost-effective and rapid.

Abstract: The invention concerns a method for manufacturing a ceramic material with pseudo-isotropic microstructure. The method for tailoring the microstructure for manufacturing of sintered ceramic components involves a spark plasma sintering (SPS) process. By performing the SPS process in at least two steps it is possible to separate densification from grain growth. An initial sintering step at a first temperature and a first pressure, followed by a controlled grain growth step at a higher temperature and lower pressure makes it possible to manufacture ceramic components with controlled microstructure and improved mechanical properties.

Abstract: A sealing device is provided for sealing a space between a hub and a spindle pivotally connected by a bearing, the hub being coaxially mounted on the spindle and extending in an axial direction and the bearing having an inner ring. The sealing device includes a radial shaft seal including a shell portion having an outer static sealing surface disposeable against the hub and a hinge portion having a radial sealing lip. A sleeve member includes an inner static sealing surface disposeable against the spindle, a running surface contactable by the sealing lip and a sleeve portion. The sleeve portion extends in the axial direction beyond a side surface of the bearing inner ring and is disposeable about a shoulder diameter of the bearing inner ring.