Abstract: A bearing arrangement is provided with an area to be supplied with lubricant from a lubricant reservoir via a lubricant line. The lubricant reservoir has a number of individual reservoirs in which a portioned amount of lubricant is contained with closure to the lubricant line. A mechanism is provided for allowing the closure to the lubricant line to be optionally cleared.

Abstract: A linear bearing includes a linear guide on which a carriage is translationally movable, a plurality of balls between the linear guide and carriage located in a contact area between the linear guide and the carriage on a straight line, ball deflection sections each adjoining one end of the line outside the contact area, and a ball return section, with the balls being adapted to continuously revolve along the line between the linear guide and the carriage, the ball deflection sections and the ball return section. The ball deflection sections include an end part and a ball deflector. The end part is provided with a trough-shaped depression which guides the balls, while the ball deflector includes a hemispherical or hemi-ellipsoidal section. Also, a deflection path for the balls is provided between the trough-shaped depression and the hemispherical or hemi-ellipsoidal section in a mounted state of the linear bearing.

Abstract: A plain bearing bush possesses a hollow cylindrical shape and includes a first hollow cylindrical part of a first material and a second hollow cylindrical part of a second material, with the second hollow cylindrical part being coaxially surrounded by the first hollow cylindrical part. One of the first and second materials is a plain bearing material and the other of the first and second materials is a high-strength material. A plurality of through holes penetrate both the first hollow cylindrical part and the second hollow cylindrical part, with the through holes each having an axis arranged perpendicular to the longitudinal axis of the hollow cylindrical shape.

Abstract: A system and method for analyzing vibrations signals thereby identifying damage or original manufacture defects in a vibrating device. In one embodiment of the invention, the method comprises collecting vibration signal data from at least one vibrating device, wherein the vibrating device includes at least an rotating inner ring, a rotating outer ring, and a plurality of rotating elements. The vibration signal data is enveloped and converted into a frequency domain signal. The amplitude of the frequency domain signal at certain defect frequencies is divided by a noise floor to provide a damage index. If the damage index exceeds an adjustable user-defined threshold, a warning is generated so as to alert a user of damage or original manufacture defects in the vibrating device.

Abstract: A device for protecting the bearing of an electrical machine against the damaging passage of current, wherein the electrical machine comprises a stator and a rotor pivotally mounted relative to the stator by the bearing. The device is provided with a compensation circuit which produces a compensation current which compensates for a parasitic current formed during operation of the electrical machine by the bearing and a coupling element for directly or indirectly coupling the compensation current into the bearing.

Abstract: A guide rail for a linear bearing has at least one rail element with a guideway for rolling bodies. The rail element is connected to a plastic body or borders the plastic body, with the plastic body forming the base body of the guide rail. To increase the precision of the guide rail, especially when used in an environment involving a wide temperature range, the rail element is connected to a metallic support frame which is surrounded at least partially by the material of the plastic body.

Abstract: A module for a fuel cell arrangement having several stacked plates. At least two of the plates have a common seal element of polymer material which is injected onto the plates and by which the plates are at least partially joined to one another. The plates can be provided with openings into which the seal element extends. The plates can be configured so that a cavity is defined between the plates, with the openings communicating with the cavity. The seal element can also have different cross-sectional configurations.

Abstract: A cylindrical roller bearing includes an outer bearing ring, an inner bearing ring and cylindrical rollers located between the outer and inner bearing rings. One of the rings has side rims forming an axial stop for the cylindrical rollers. The bearing ring on which the side rims are not provided is formed with at least one groove outside the axial extension of the cylindrical rollers. A ring of spring-elastic material is positioned in the groove to form an axial stop for the cylindrical rollers. The periphery of the ring has no interruptions. To improve the running behavior of the cylindrical roller bearing, the ring possesses a V-shaped cross-section with two legs.

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: Bearing (14) of the type having a full complement of rollers incorporating an inner race ring (13), an outer race ring (14) and a row of rollers (15) provided between these rings, said rollers being axially moveable relative to the rings. The space between inner race ring (13) and outer race ring (14) is sealed off by means of sealing members (18) arranged on one hand to provide a sealing effect by frictional engagement against the inner race ring as well as against the outer race ring, and on the other hand to follow the rollers (15) in their axial movement.

Abstract: A casting is formed by inserting a metal reinforcement coil into a mold cavity and injecting a plastic casting material into the cavity such that the coil becomes embedded within the plastic casting material. Prior to being placed in the cavity, the coil is heat treated to relieve stresses therein, and a layer of plastic is sintered to the outer surface of the coil. Plastic is injected into the mold at a temperature lower than the heat-treating temperature, but hot enough to melt an outer portion of the layer and become joined therewith. An inner portion of the layer remains sintered to the coil.

Abstract: Steel for ball and roller bearings and similar applications, containing, in % by weight:______________________________________ 0.70-0.95% Carbon 0.01-0.30% Silicon 0.15-0.50% Manganese 0.5-2.5% Chromium 0.10-1.5% Molybdenum max. 0.25% Vanadium ______________________________________the rest up to 100% being iron and other residual elements normally present in steel, andwith the further proviso that the total area percentage of oxide inclusions must not exceed 0.0012%, that the area percentage of titanium-carbonitrides must not exceed 0.0015%, and that the area percentage of sulphide inclusions must not exceed 0.030%, the respective area percentages being measured according to the inclusion rating method defined in the Swedish Standard SS111116, wherein the field of vision shall be 0.8 mm and the number of fields of vision to be surveyed shall be at least 1000.

Abstract: A sealed bearing includes inner and outer race rings, roller members disposed therebetween, and built-in sealing members for sealing the space in which the roller members are situated. The outer race ring is equipped with a mounting groove 5 for each sealing member. The groove is situated axially inside of a side plane of the outer race ring and is inclined obliquely relative to that side plane. The mounting groove has an opening situated axially outside of the outer race track, whereas at least a part of the inner end of the groove is situated axially inside of the outer axial end of the outer race track.

Abstract: The invention refers to a roller bearing (10) with curved race track and roller profiles, whereby the radius of curvature is substantially bigger than the biggest distance between the center axes of the race tracks and their envelope surfaces, and having a cage (15) for the rollers. Said cage (15) being designed thus that it permits required axial displacement of the rollers (16) at tilting of the race tracks (13,14) relative to each other.

Abstract: A spherical roller thrust bearing comprises two bearing rings rotatably guided by spherical roller elements for rotation about an axis. The roller elements are spaced circumferentially apart by a segmented retainer comprising separate retainer segments spaced apart in the circumferential direction. Each retainer segment includes opposite circumferentially facing surfaces engaging adjacent roller elements. Each surface includes at least one projection making point contact with a peripheral surface of a roller at a location whereby the force transmitted between the roller elements by the segments excludes a radially inward force component. The projections are located relative to the roller elements such that the segments tend to hang upon the roller elements.

Abstract: The invention relates to a spherical rolling bearing which comprises an outer ring with a spherical race track, an inner ring, a plurality of rolling elements between the rings, and seals on one or both sides of the rolling elements. The invention is characterized in that the seals are formed with a rim which can be snapped against the spherical race track and kept in an outer ring by means of this rim and a portion which clamps against the side plane of the outer ring. By this design there is no need for the outer ring to be provided with grooves for holding the seals.

Abstract: A cage for the rollers in a roller bearing has two annular portions (11, 12) and intermediate bars (13). A protrusion (16) is provided on the side surface (15) of the one annular members (11) in connection to each cage pocket (14) for insertion into a recess in the adjacent roller end so as to retain the roller (10) in the cage pocket (14).

Abstract: The invention relates to a device for non-contact measuring of stresses including bending stresses in a bar-shaped body (1), e.g. a cylindrical bar, shaft or the like. In at least one transverse zone (2, 3) the bar (1) is provided with a number of thin strips (4) of an amorphous magnetoelastic material, distributed along the circumference of the zone, said strips (4) being affixed to the circumferential surface of the zone and extending at a pitch angle therealong, a preferably at a pitch angle of 45.degree.. Means (5) are provided for generating a magnetic field over said zone (2, 3) and a pick up coil (6-13) encircling the bar is provided for each zone (2, 3), said pick up coil being connected to a measuring unit (16, 16A) for indicating signals generated in the coil.

Abstract: A rolling bearing (12) is arranged to support a shaft (10) rotatably in a housing (13). In order to make simple mounting and dismounting of the bearing (12) possible this is first fitted with a loose fit to the shaft (10), whereupon the shaft (10) is caused to expand thus that an interference fit is obtained at the same time as desired preload can be obtained in the bearing (12). The invention is intended to be applied particularly when mounting a drill head to a tunnel drilling machine.