Abstract: A radial roller bearing, which is a single-grooved ball bearing. The bearing bodies are spherical disks with two symmetrical, parallel lateral surfaces from a spherical base shape. The bearing has a larger contact surface of the spherical disk in relation to the bearing body tracks thereof, as well as, an increased number of bearing bodies. One part of the width of the disks, between the lateral surfaces thereof, is larger than the distance between the inner side of the external bearing ring and the external side of the inner bearing ring, but equal to or smaller than the width of the bearing body tracks. Also, the use of the disks in the bearing takes place according to an eccentric mounting method where the disks are arranged in a transversal manner in the bearing body tracks and are arranged on top of each other in relation to the lateral surfaces thereof.

Abstract: A hydraulic tensioning element for a traction mechanism drive, which has a cylinder, an axially movable piston guided in the cylinder, a spring element disposed between the cylinder and the piston, a pressure chamber configured in the cylinder, a storage chamber configured in the piston for a hydraulic fluid, and a valve enabling an exchange of the hydraulic fluid between the pressure chamber and the storage chamber as a function of an actuating movement of the piston. The piston and the cylinder are configured such that the damping generated by the piston movement is substantially independent of the temperature.

Abstract: The seat adjustment mechanism has a housing with an outer ring and an inner ring. The rings are arranged concentrically. Clamping bodies interact with double clamping ramps on the rings and are arranged in an annular space between the rings. Spring supports pivot in relation to each other, interact with a stop on the housing, are arranged concentrically with the rings, and engage in each case both in the annular space and in an inner space arranged radially within the inner ring. The spring supports are braced in relation to each other by a spring, which is arranged in the inner space to secure the clamping bodies in the center of the double clamping ramps. Stop surfaces of the spring supports are acted upon by a force in the direction in which they are minimally spaced apart.

Abstract: A ball screw is provided having a ball roller screw (1) and a screw nut (2) arranged thereon, whereby the balls (3) are arranged to endlessly circulate in a ball channel (6) defined by ball tracks (4, 5) on the ball roller screw (1) and the screw nut (2). The ball channel (6) includes a load section (7) wound about the ball roller screw (1), the beginning and end of which are endlessly connected by a load-free return section (8). A minimum of two and a maximum of four balls (3) are housed in a common ball cage (10, 22), the cage pockets (11) of which each house one of the balls (3), whereby the ball cage (10, 22) includes discs (12, 15) at the axial ends thereof and between adjacent balls (3), that engage the ball channels (4, 5), and provided on the sides thereof facing the balls (3) with a concave receptacle (14) for the balls (3).

Abstract: A wheel bearing arrangement which as at least two rows of rolling bodies which are used to bear a wheel hub which can be driven by a drive element and which includes a wheel bearing arrangement. The wheel hub is connected to the drive element. The wheel hub and the drive element engage together in a positive fit via a pair of face splines which correspond to each other.

Abstract: The valve train assembly with magnet uses the magnet to collect ferrous metal particles that are in the oil prior to their arrival at the high pressure cavity of the hydraulic lash adjuster. The magnet can be positioned in the low pressure cavity of the hydraulic lash adjuster, in the bore of the hollow rocker arm shaft or in the bore of the hollow push rod.

Abstract: An articulated coupling for rail vehicles is composed of a fork head having two fork pieces and of a coupling link. The coupling link accommodates a spherical joint which is traversed by a pin secured in the fork head. To fasten the pin in the fork piece, there is provided a wedge which is arranged in the axial direction of the pin and has a concavely curved surface adapted to the cylindrical curvature of the surface of the pin.

Abstract: According to the present invention, an outer lever (1) of a finger lever (2) that can be switched to different lifts for at least one gas exchange valve is made by a deep drawing method. A salient feature of the invention is that through a special trimming operation of the cup-shaped base body (16) that is formed in a first step of the method, running contact surfaces (14, 15) for cams, preferably high-lift cams, are generated on upper sides (12, 13) of arms (4, 5) of the outer lever (1). Through the deep drawing method of the invention, only relatively low fabrication costs are to be expected.

Abstract: A camshaft adjuster (1) for an internal combustion engine is provided, in which the relative angular position between a driving gear (2) and an output element that is allocated to the camshaft can be adjusted by hydraulically impinging pressure chambers located between an inner and outer rotor. The outer rotor and the gear ring of the driving gear (2) are joined to each other via fastening elements (15). In order to create a particularly compact camshaft adjuster (1), the fastening elements are located at least in part at a distance from the longitudinal axis of the camshaft adjuster (1) which is smaller than the external radius (35) of the pressure chambers.

Abstract: A device (1) which is used to modify the control times of an internal combustion engine (100) is provided. The device (1) includes a drive wheel (13), a drive element (4) and a swashplate mechanism (4). The torque of the crankshaft (101) is transferred via a primary drive to the drive wheel (13) and then, via the swashplate mechanism (2) to the drive element (4) which is secured to the camshaft (11) in a rotationally fixed manner. The configuration of the mounting of the drive wheel (13) on the tooth support (9) of the drive element (4) reduces the axial area of the device (1) due to the construction measures. The invention also relates to an embodiment, wherein the device (1) is fixed to the camshaft (11) by means of a securing screw (12a) without the need for additional space.

Abstract: A hydraulic cam follower (1), such as a roller tappet, is provided. This is used for the actuation of two identically operating gas-exchange valves and should be installed inclined to the direction of the force of gravity. The cam follower (1) comprises a pot-shaped housing (2), whose bottom (3) is provided with a roller as a cam contacting element (4). In the housing (2), two guides (5) extending parallel to the direction of the internal combustion engine are provided, in each of which a pressure piston (6) is arranged so that it can move axially, whose end (7) away from the housing is constructed as a support for contact with a respective tappet pushrod. Each pressure piston (6) encloses a reservoir (11) for hydraulic medium.

Abstract: A mechanical tappet (101, 201, 301, 401, 501, 601, 701, 801, 901, 1001) is provided, in particular for actuating the lifting of a pump piston (39) of a fuel pump of an internal combustion engine, with a sleeve-shaped tappet housing (102, 202, 302, 402, 502, 602, 702, 902, 1002) constructed as a shaped sheet-metal part and with a driving roller (6) supported so that it can rotate. Here, a bolt (4) supports the driving roller so that it is centered, and end sections (7) of the bolt projecting from the driving roller are supported in bolt eyes (8) of the tappet housing.

Abstract: A switchable component (1) for a valve train of a combustion engine is provided, such as a roller tappet, with a housing (2), in whose borehole (3) an inner element (4) runs that can move relative to the housing in the axial direction. At least one coupling element (6) is allocated to the inner element (4), wherein this coupling element, in the decoupled case, lies with its outer end (7) directly in front of an annular surface (8) between both components (2, 4) and, in the coupled case, engages in some sections with a driver surface (9) in the borehole (3) of the housing (2), and wherein, between the components (2, 4) there is a lost-motion spring element (10) forcing these components away from each other in the axial direction. As the coupling element (6) there is at least one sickle-shaped ratchet that can pivot outward and that sits at least indirectly in an opening (11) in the outer shell (5) of the inner element (4) and that is connected to the inner element (4) in an articulated way at one end (12).

Abstract: A swash plate pivot bearing is provided having roller bearing segments (15) arranged between a hollow cylindrical bearing surface (12) for a swash plate (10) in a housing (3) and a cylindrical bearing surface (11) on the swash plate (10), held in curved cages (17) whereby elements are provided for controlling the cages which prevent the cage (17) accommodating the roller body (16) from slipping out from the optimum position thereof in the pivot bearing. The cage control elements are integrated into the roller bearing segments (15) so that at least one roller body (23, 23.1, 23.2) of cylindrical form has a positive engagement with the hollow cylindrical bearing surface (12) and the cylindrical bearing surface (11). It is thus possible to prevent the escape of roller bearing segments (15) from the bearing gap (22) due to the effects of vibration.

Abstract: A valve-train assembly of an internal combustion engine is provided with a camshaft (1) that includes a carrier shaft (2), as well as a cam element (3) that can move on the carrier shaft between two axial positions and that has at least one cam group of directly adjacent cams (5, 6) with different cam lobes and an axial connecting link (8) constructed with a groove with outer guide walls (12, 13, 14, 15) for defining two intersecting connecting link pathways (9, 10), and with an activation pin (11) that can couple in the axial connecting link for moving the cam element in the direction of both connecting link pathways. In this way, the groove base of one connecting link pathway and the groove base of the other connecting link pathway should extend radially offset in height relative to each other, so that the connecting link pathway (9) with the radially lower groove base is also defined by inner guide walls (19, 20) that are formed by the offset in height.

Abstract: A linear rolling bearing, which has a guide carriage that is mounted by rolling bearings on a guide rail, and which has a scraper arranged at least one end side of the guide carriage for scraping foreign objects such as chips, dust and cooling liquids from the guide rail. The scraper is in scraping contact, by its scraping system, preferably by a sealing lip or sealing edge, with the guide rail. The scraper has a first stop for abutment against the guide rail, with the abutment of the first stop indicating an impermissible position of the scraper on the guide rail.

Abstract: The invention relates to a bearing arrangement (1) comprising an at least partially planar bearing support (2) that has a supporting bore (5), and at least one bearing (6) which is connected to said bearing support (2). An external ring (7) of the bearing (6) is provided with a recess (14) for accommodating the bearing support (2). According to the invention, the axially internal end of the recess (14) has an undercut (15), the diameter (D1) of which in relation to a bearing axis (11) is smaller than a diameter (D2) formed by an axially extending section of the recess (14). A slotted ring-type holding element (16) which positively covers the bearing support (2) in a radial direction in at least one circumferential point is inserted into the undercut (15).

Abstract: The invention relates to a roller bearing, with an inner running ring, an outer running ring, several roller bodies arranged between the running rings and guided in a bearing cage, whereby the bearing cage has axially aligned cage pins evenly distributed around the circumference, each fixed at one end to a cage ring on each of which a roller body is arranged to rotate on a central bearing drilling. According to the invention, the operating properties of the roller bearing may be improved, whereby the roller cage is provided at each cage pin with at least one passive positioning element, by means of which the offset of the corresponding roller body may be altered by means of a temperature-dependent change of shape of the positioning element.

Abstract: Double row angular contact ball bearing (10) has split inner rings (18, 24) and two plastic comb snap cages (32, 44). The comb cage has retaining tabs (38, 50) which mate with retaining grooves (22, 28) in the split inner rings. These retaining tabs hold the inner rings into the bearing.

Abstract: An axial radial bearing for a rotor shaft of a wind power installation, which has a vertical circular outer disk, inner ring arranged coaxially to the outer disk, and two circular shaft washers axially arranged on both sides of the outer disk. At least one row of rolling bodies, held at equal distances by a bearing cage, extends between the shaft washers and outer disk, forming the rolling bearings for receiving axial forces, while at least one other row of rolling bodies, optionally held at equal distances by another bearing cage, is arranged between the outer disk and inner ring, forming a third rolling bearing for receiving radial forces. The two rolling bearings for receiving radial forces are formed by two tapered roller bearings oriented towards the longitudinal axis of the bearing by the small front sides, or by a double-row angular ball bearing or by two axial ball bearings.