Abstract: Aspects of the went disclosure are directed to a mixing device having at least one gas-carrying gas duct, at least one injection device for injecting a liquid and at least one first guiding element positioned downstream of the at least one injection device and projecting into a gas flow in the at least one gas-carrying gas duct. The at least one gas-carrying gas duct having at least one bulge of a duct wall directly downstream of the at least one first guiding element.

Abstract: A needle sleeve, in particular for pivotably mounting the throttle valve shaft of a control device for recirculating exhaust gas in internal combustion engines. The needle sleeve provides a thin-walled outer ring formed without cutting. A needle roller and cage assembly is inserted in the outer ring. The needle cage carries the bearing needles at uniform spacings in the circumferential direction. The needle sleeve has, at its axial sides, two radially inward facing ribs holding the needle roller and cage assembly in the outer ring and has multiple seals that seal the sleeve to prevent exhaust gas condensates from flowing through. The outer ring of the needle sleeve is a rimless, cylindrical sleeve, and the seals are two lip sealing rings having an S-shaped cross-sectional profile. The seals are located at least partially outside the outer ring and are pressed onto its axial edges, and provide the radially inward facing ribs.

Abstract: A ring-shaped metal rolling bearing cage, which has cage pockets for receiving rolling elements. The cage is formed by a first and a second cage segment. Adjoining ends of the cage segments are connected to one another by suitable connection assemblies. At least one of the assemblies permits a change of the cage diameter when the cage temperature changes. The suitable assembly, on one side, is configured as a joint mechanism and, on another side, as a locking mechanism, and at least one of the assemblies has a lash. A rolling bearing cage configured with the joint mechanism and the locking mechanism can be mounted with low time expenditure in a simple and reliable manner over a shaft, particularly in the case of an idler pinion mourning.

Abstract: A rolling bearing comprising a rolling bearing cage having a plurality of rolling element pockets arranged in at least one row to receive at least one row of rolling elements, two lateral rings and a plurality of crosspieces connecting the two lateral rings, such that the plurality of rolling element pockets are formed between the plurality of crosspieces, and at least one empty pocket. The rolling bearing cage includes fewer rolling elements in the at least one row than the number of rolling element pockets, such that the at least one empty pocket does not receive a rolling element. A method for producing a rolling bearing cage is also provided.

Abstract: A radial roller bearing assembly, in particular for a needle bush (1), which substantially comprises a thin-walled outer ring (4), which can be inserted into a bore (2) or a housing (3), having two ribs (5, 6) directed radially inward, and a needle cage assembly (7) that is held in the outer ring (4) by said ribs (5, 6). According to the invention, the needle cage assembly (7) is formed by a needle cage (8) and a plurality of bearing needles (9) guided therein in the circumferential direction at regular distances, which roll on the inner shell surface (10) of the outer ring (4) and on the outer shell surface (11) of a shaft (12) to be borne or a separate inner ring. Furthermore, at least two seals (15, 16) are arranged axially next to the side surfaces (13, 14) of the needle cage (8) which protect the needle bush (1) from contamination from the outside and from the loss of lubricant.

Abstract: A radial roller bearing comprises a smooth cylindrical outer ring inserted in a housing with a roller race arranged in the outer ring. The roller race is formed by a plurality of roller-shaped rolling elements inserted in a bearing cage, which holds said rolling elements evenly spaced in a circumferential direction. The rolling elements roll off an outer raceway formed by the inner shell surface of the outer ring, and off an inner raceway formed by the outer shell surface of a shaft to be mounted, or formed by a smooth cylindrical inner ring fitted onto the shaft. The axial guidance of the roller race is accomplished by way of two separate flanged rings abutting the axial sides of the outer ring which, together with the outer ring are axially fixed in place by way of safety elements engaging with circumferential grooves in the housing. The safety elements for the flanged rings and the outer ring, and the flanged rings are fixedly connected.

Abstract: A bearing ring for a radial rolling bearing, in particular for a cylindrical roller bearing or needle bearing which has, on one of the radial surface areas thereof, a track for a set of cylindrical rolling bodies which are cageless or are guided by a cage and one or two guide flanges axially bounding the track of the rolling bodies is/are fastened to the axial end surfaces of said bearing by adhesive bonding. Each guide flange has a rectangular profile cross section with a horizontal fastening limb and a vertical flange limb and, by way of the horizontal fastening limb thereof, is adhesively bonded in an encircling axial groove in an axial end surface of the bearing ring.

Abstract: A rolling bearing cage, which has two annular elements and cage crossbars connecting the annular elements to each other so as to form pockets for receiving rolling elements arranged between every two adjacent cage crossbars and the annular elements. The cage crossbars have an elastic configuration. Also, a rolling bearing is disclosed that has a rolling bearing cage.

Abstract: The invention concerns a rolling element cage (32) made of a metal strip material that is profiled, stamped, cut to length, and bent into a round shape, wherein the ends of the cut-to-length strip sections are joined together by welding. In order to make it possible to influence the lubricant distribution in the bearing and the vibration characteristics of the cage and thus of the overall bearing system, according to the invention the strip section ends (34, 36) are joined together with a predetermined axial offset (a) and/or radial offset (b).

Abstract: A multi-row rolling bearing, which has a cage for rows of rolling elements that is detachably connected to a respective adjoining cage. For assembly and safety of assembly, the detachable connection between the cages is at least one predetermined breaking point.

Abstract: A radial roller bearing assembly, in particular for a needle bush (1), which substantially comprises a thin-walled outer ring (4), which can be inserted into a bore (2) or a housing (3), having two ribs (5, 6) directed radially inward, and a needle cage assembly (7) that is held in the outer ring (4) by said ribs (5, 6). According to the invention, the needle cage assembly (7) is formed by a needle cage (8) and a plurality of bearing needles (9) guided therein in the circumferential direction at regular distances, which roll on the inner shell surface (10) of the outer ring (4) and on the outer shell surface (11) of a shaft (12) to be borne or a separate inner ring. Furthermore, at least two seals (15, 16) are arranged axially next to the side surfaces (13, 14) of the needle cage (8) which protect the needle bush (1) from contamination from the outside and from the loss of lubricant.

Abstract: A radial roller bearing comprises a smooth cylindrical outer ring inserted in a housing with a roller race arranged in the outer ring. The roller race is formed by a plurality of roller-shaped rolling elements inserted in a bearing cage, which holds said rolling elements evenly spaced in a circumferential direction. The rolling elements roll off an outer raceway formed by the inner shell surface of the outer ring, and off an inner raceway formed by the outer shell surface of a shaft to be mounted, or formed by a smooth cylindrical inner ring fitted onto the shaft. The axial guidance of the roller race is accomplished by way of two separate flanged rings abutting the axial sides of the outer ring which, together with the outer ring are axially fixed in place by way of safety elements engaging with circumferential grooves in the housing. The safety elements for the flanged rings and the outer ring, and the flanged rings are fixedly connected.

Abstract: The invention concerns a rolling element cage (32) made of a metal strip material that is profiled, stamped, cut to length, and bent into a round shape, wherein the ends of the cut-to-length strip sections are joined together by welding. In order to make it possible to influence the lubricant distribution in the bearing and the vibration characteristics of the cage and thus of the overall bearing system, according to the invention the strip section ends (34, 36) are joined together with a predetermined axial offset (a) and/or radial offset (b).

Abstract: The invention concerns a needle sleeve (1), in particular for pivotably mounting the throttle valve shaft of a control device for recirculating exhaust gas in internal combustion engines, which consists primarily of a thin-walled outer ring (2) formed by non-cutting means and a needle roller and cage assembly (3) that is inserted in this outer ring (2) and is composed of a plurality of bearing needles (4) and a needle cage (5) that carries the bearing needles (4) at uniform spacings in the circumferential direction. The needle sleeve (1) has, at its axial sides, two radially inward facing ribs (6, 7) holding the needle roller and cage assembly (3) in the outer ring (2), and is designed with multiple seals (8, 9) by means of which the sleeve is sealed to prevent exhaust gas condensates from flowing through.

Abstract: A needle roller bearing, which has a rimless inner ring or a rimless inner ring bushing and a plurality of rolling elements that are arranged and rotatable in the cage. For coherence of the needle roller bearing after manufacturing and for mounting in an installation space, the cage has, at least on one front end, a radially inward pointing retaining device and the inner ring or the inner ring bushing has a retaining element on its outer periphery that cooperates with the retaining device.

Abstract: The invention concerns a rolling bearing with a rolling bearing cage (1) having a plurality of rolling element pockets (2) arranged in at least one row to receive at least one row of rolling elements, wherein the rolling bearing cage (1) consists of two lateral rings (3) and a plurality of crosspieces (4) connecting them, between which crosspieces are formed the rolling element pockets (2), and having at least one empty pocket (5). In order to achieve cost-effective manufacture of the rolling bearing cage (1) with the fewest possible changes as compared to a rolling bearing cage fully populated with rolling elements, provision is made according to the invention that the rolling bearing cage (1) is equipped with fewer rolling elements in one row than corresponds to the number of rolling element pockets (2), causing the rolling bearing cage (1) to have empty pockets (5) without rolling elements in the at least one row of rolling element pockets (2).

Abstract: A needle roller bearing for a bearing arrangement, which has cage-guided cylindrical needle rollers arranged between and in rolling contact with a conical outer raceway and a conical inner raceway. For manufacturing, for economic purposes, and to keep the dimensions of the needle roller bearing as small as possible, at least one of the two conical raceways is part of a thin-walled bearing bushing that is made without chip removal and has an outer cylindrical fitting surface for an interference fit in a housing.

Abstract: A needle roller bearing, which has a rimless inner ring or a rimless inner ring bushing and a plurality of rolling elements that are arranged and rotatable in the cage. For coherence of the needle roller bearing after manufacturing and for mounting in an installation space, the cage has, at least on one front end, a radially inward pointing retaining device and the inner ring or the inner ring bushing has a retaining element on its outer periphery that cooperates with the retaining device.

Abstract: A multi-row rolling bearing, which has a cage for rows of rolling elements that is detachably connected to a respective adjoining cage. For assembly and safety of assembly, the detachable connection between the cages is at least one predetermined breaking point.

Abstract: A rolling bearing cage, which has two annular elements and cage crossbars connecting the annular elements to each other so as to form pockets for receiving rolling elements arranged between every two adjacent cage crossbars and the annular elements. The cage crossbars have an elastic configuration. Also, a rolling bearing is disclosed that has a rolling bearing cage.