Abstract: A cam follower (configured to be driven by a cam) includes a tappet, a radial bore inside which a shaft is mounted, and a roller that is rotatably mounted around the shaft for providing a rolling contact with the cam. At least one of the inner bore and a radial surface of the shaft is coated with at least one of an anti-friction and a wear resistance coating layer. The coating layer includes polyetheretherketone.

Abstract: A bearing cage for retaining rolling elements of a rolling element bearing, the bearing cage having at least one first ring structure to which at least one first cage bar is connected. The at least one first cage bar comprises a side surface that is arranged to extend along an outer surface of a rolling element when the bearing cage is in use, whereby the side surface comprises a radially outer edge and a radially inner edge. The distance between the radially outer edges of two adjacent cage bars between which a rolling element is located when the bearing cage is in use is greater than the distance between two adjacent radially inner edges of the two adjacent cage bars.

Abstract: A double-row spherical roller bearing, comprising an outer ring including at least one spherical inner raceway on a radially inner peripheral surface, an inner ring including a first and second axial end and at least one outer raceway on a radially outer peripheral surface. Spherical roller elements are located in first and second roller rows interposed in-between the inner and outer raceways. A first flange is located at the first axial end, extending in a circumferential direction of the outer peripheral surface. The inner ring is subjected to an axial load in a first axial direction wherein the first flange approaches the first roller row. An axial extension of the first flange extends without contacting any first roller row roller elements during bearing operation, when an axial load is acting on the inner ring in the first axial direction. The bearing can be integrated into a wind turbine.

Abstract: Flanged radial bearing with rolling elements provided with an outer ring radially defined by an outer surface; an inner ring mounted inside and coaxially with the outer ring; a row of rolling elements between the two rings to allow the two rings to rotate relative to one another; and a flange secured to the outer ring and located in correspondence of an assembly groove made around said outer surface; the flange being assembled, in such a way that it cannot be disengaged, to the outer ring.

Abstract: A device for monitoring a bearing, wherein the device comprises at least one sensor configured to obtain data concerning at least one of the factors that influences the residual life of the bearing. The device is a portable device and comprises a non-permanent attachment feature configured to non-permanently attach the device to a surface of the bearing so that at least a part of the at least one sensor is pressed against the surface of the bearing.

Abstract: A temperature compensation ring configured to compensate for changes in a temperature-dependent distance between two components includes a base body made from an elastic material and a first reinforcing body and a second reinforcing body, each of the first and second reinforcing bodies including a harder material than the material of the base body. The first and second reinforcing bodies are disposed at opposite end surfaces of the base body and partially define an outer periphery of the temperature compensation ring.

Abstract: A friction-enhancing lacquer contains a binder and hard material particles. The hard material particles include a titanium-boron compound or consist essentially of a titanium-boron compound, such as titanium diboride. The friction-enhancing lacquer is applied to the surface of a machine part, such as a bearing inner ring, outer ring or other bearing component, in order to increase its coefficient of friction and minimize or prevent slippage relative to another machine part clamped thereto. Also a bearing component coated with such a lacquer.

Abstract: A mechanical device, comprising: a bearing including a fixed ring and a pivoting ring centered on a central axis and including an interface defined therebetween; and an interface lubrication system. An acceleration field pushes the stream of lubricant from a bearing first zone to a bearing second zone, each defining an angular sector around the central axis. The lubrication system comprises a set of peripheral channels passing through the fixed ring and including first channels positioned in the first zone and defining a first intake flow rate for bringing lubricant to the interface and second channels positioned in the second zone and defining a second intake flow rate bringing lubricant to the interface. The first flow rate is higher than the second flow rate. The interface receives a larger quantity of lubricant in the first zone than in the second zone. The mechanical device can be integrated into a machine.

Abstract: A bearing having grease lubrication includes a first ring and a second ring. A plurality of screw holes axially extend through the first ring. A first axial end of the first ring is affixed to a housing by a plurality of screws extending from the housing into the respective screw holes. A first bore is defined in the first ring adjacent to a second axial end of the first ring. The first bore intersects and fluidly communicates with one of the screw holes such that grease is dischargeable therethrough.

Abstract: A cartridge seal for sealing a space between a housing and a rotatable shaft includes a rotary sealing member having an inner surface defining a bore for receiving the shaft and a circular outer flange extending radially outwardly from and circumferentially about a central axis, the outer flange having a radial sealing surface. A static seal assembly is disposed about the rotary member and includes an annular casing coupleable with the housing and an annular static sealing member disposed within the casing and having a radial sealing surface engageable with the rotary member sealing surface to form a sealing interface. A biasing member axially biases at least a portion of the static sealing member toward the rotary member flange. An annular collar is disposed within the casing and axially retains the rotary member within the casing such that the seal assembly is mountable on a shaft as a single unit.

Abstract: A friction coupling comprising first and second coupling surfaces. A friction surface is provided on the first coupling surface and a counterface is provided on the second coupling surface. The friction coupling further comprises preload elements, such as bolts, for applying a predefined pressure on the first and second coupling surfaces. The friction surface of the coupling comprises abrasive particles that constitute hard asperities which protrude from a substrate of the friction surface with a height h. The abrasive particles are provided on the substrate in a predefined asperity density ?. The predefined asperity density ? is greater than a minimum threshold for the asperity density ?min and is less than 2.5*?min.

Abstract: An axle seal used to prevent lubricant from leaking between a rotating shaft and a shaft bore, for example, sealed fittings between the rotating shaft and shaft bore where static misalignment and/or dynamic misalignment exceeds conventional extent. The seal includes: a peripheral connection section reliably connected to an inner edge of the shaft bore; an extensible and retractable adjustment section connected to the peripheral connection section, allowing the seal to make extension and retraction adjustment in a radial direction; and a sealed contact section connected to the inner edge of the extensible and retractable adjustment section and potentially in sealed contact with the surface of the rotating shaft. The seal contains an alignment follower that can synchronously transfer a radial movement of the rotating shaft to the inner edge of the extensible and retractable adjustment section. One application would be an oil seal between a front cover and crankshaft.

Abstract: The invention relates to a system for treating contaminated wastewater, comprising a feed line (3) that leads into a separator (5) and a discharge line (10) that leaves the separator, which discharge line leads directly or indirectly into an access line (16) into an ultrafiltration system (18), wherein the ultrafiltration system (18) has a permeate outlet line (19) and a concentrate outlet line (17). According to the invention, a system and a method for treating contaminated wastewater that operate effectively and reliably with low component complexity are provided or specified. This is achieved in that the permeate outlet line (19) can be connected to the feed line (3) in a controllable manner.

Abstract: A seal ring includes an annular elastomer body and an annular metal reinforcement at least partially embedded in the elastomer body. The metal reinforcement includes a predominantly radially oriented part and a predominantly axially oriented part, and an end of the predominantly axially oriented part spaced from the predominantly radially oriented part is elastically deformable in a radial direction by more than 2% of a distance from the predominantly radially oriented part to the end of the predominantly axially oriented part.

Abstract: Device for tensioning a threaded rod comprising an actuator able to exert an axial tensile force on the threaded rod with respect to a structure to be tensioned, the said tension device comprising a cylinder, a piston, a tubular skirt in contact with the cylinder and a surface of the said structure to be tensioned, and a tie for transmitting the axial tensile force of the actuator towards an end of the threaded rod. The tie and the tubular skirt each comprise at least two semicylindrical parts each having two substantially planar axial surfaces, the two axial surfaces of one semicylindrical part being joined radially respectively with one of the two axial surfaces of the other semicylindrical part, so as to form a part of revolution.

Abstract: A sealing assembly insertable between a rod and a guiding bush of a shock absorber to form a sealing and guiding unit for the rod is provided. The assembly includes an elastomeric ring having a first and a second annular lip which extend axially and radially overhanging; and a reinforcing ring integrally coupled to the elastomeric ring, radially on the side of the first and of the second sealing lip. The reinforcing ring is integrally coupled in one piece with the elastomeric ring, on the exterior of the elastomeric ring and on the side of a lateral surface thereof facing towards the lips, the reinforcing ring coupling in sliding manner with the rod to serve as guide therefor. The sealing ring coupling by interference with the guiding bush.

Abstract: A device for injecting a fluid into a mechanical system that may undergo heating, comprising at least one body containing a thermally triggered charge generating combustion gas, ignition of the charge being able to be triggered under the action of an ignition command and/or under the effect of a heat contribution, from a heating area of the body toward the charge, a reservoir containing the fluid, means for fastening the device to the mechanical system, the fastening means adapted to put the reservoir in fluid communication with the mechanical system, and means for delivering pressurized fluid outside the reservoir through the action, directly or through intermediate means, of the combustion gases. Within the device, the fastening means comprise at least one injection sleeve provided with an outer thread coated with an anti-loosening adhesive film. The invention also relates to a mechanical system equipped with at least one such device.

Abstract: A magnetic bearing, adapted to equip a rotary apparatus. The magnetic bearing comprises: an actuator sub-assembly provided with a magnetic base and at least three actuator bobbins mounted on the magnetic base, and a sensor sub-assembly provided with at least three magnetic sensors associated with the actuator bobbins. At least one sub-assembly amidst the actuator sub-assembly and the sensor sub-assembly comprises at least three sectors mounted together. Each sector includes at least one actuator bobbin when the sector belongs to the actuator sub-assembly, or at least one magnetic sensor when the sector belongs to the sensor sub-assembly. The invention also concerns a rotary apparatus comprising such a magnetic bearing and a method for manufacturing such a magnetic bearing.

Abstract: A device for testing an acoustic emission sensor, the device being configured to monitor a bearing. The device comprises a signal generator and is a portable device that is arranged to be non-permanently attached to a surface of the bearing so that at least a part of the signal generator is pressed against the surface of the bearing.

Abstract: A seal for a plug valve and method for manufacturing a seal. The seal includes a sealing element, and a back-up ring coupled with the sealing element by an interference fit. When the back-up ring and the sealing element are coupled together, the back-up ring and the sealing element are curved about a first axis and about a second axis.