A camshaft (24), in particular for a pump (10), is proposed. The camshaft (24) has at least two cams (26, 28) which are arranged next to one another in the direction of the longitudinal axis (25) of the camshaft (24) and the cam elevations of which are arranged offset with respect to one another around the longitudinal axis (25) of the camshaft (24). An intermediate region (30) is provided between two adjacent cams (26, 28), and at least one bearing region (32) is arranged next to the cams (26, 28) in the direction of the longitudinal axis (25) of the camshaft (24). The intermediate region (30) runs in axial longitudinal sections which contain the longitudinal axis (25) of the camshaft (24), at a radial spacing (r1, r2) from the longitudinal axis (25) of the camshaft (24), which radial spacing (r1, r2), starting from the adjacent cam (26) with the smaller cam elevation (h1) in the respective axial longitudinal section, increases towards the adjacent cam (28) with the greater cam elevation (h2) in the respective axial longitudinal section.

A method for producing a roller bearing may include threading a cam roller onto a bearing sleeve until the cam roller abuts a first axial flange of the bearing sleeve and inserting a counter holder into the bearing sleeve until the first axial flange of the bearing sleeve abuts a stop of the counter holder. The method may also include heating the bearing sleeve and forming an opposite second axial flange via inserting a forming punch into the bearing sleeve after heating the bearing sleeve. The second axial flange may be formed such that the cam roller is held in the bearing sleeve with radial play and axial play after the bearing sleeve cools down. The method may further include removing the forming punch and the counter holder from within the bearing sleeve.

A rotating bearing assembly having a stationary housing, a rotating shaft, and a rolling bearing radially arranged between the stationary housing and a shaft end of the rotating shaft. The rolling bearing provides a seal that includes a stiffening insert and a sealing gasket disposed between the inner ring and the outer ring on an axial side of rolling bearing. The rolling bearing is open on the opposite axial direction to the shaft end. A cage includes an annular heel oriented towards the axial side of the shaft end, two circumferentially adjacent pockets being separated by a projected portion that axially extends from the heel towards the open axial side of rolling bearing.

A camshaft (24), in particular for a pump (10), is proposed. The camshaft (24) has at least two cams (26, 28) which are arranged next to one another in the direction of the longitudinal axis (25) of the camshaft (24) and the cam elevations of which are arranged offset with respect to one another around the longitudinal axis (25) of the camshaft (24). An intermediate region (30) is provided between two adjacent cams (26, 28), and at least one bearing region (32) is arranged next to the cams (26, 28) in the direction of the longitudinal axis (25) of the camshaft (24). The intermediate region (30) runs in axial longitudinal sections which contain the longitudinal axis (25) of the camshaft (24), at a radial spacing (r1, r2) from the longitudinal axis (25) of the camshaft (24), which radial spacing (r1, r2), starting from the adjacent cam (26) with the smaller cam elevation (h1) in the respective axial longitudinal section, increases towards the adjacent cam (28) with the greater cam elevation (h2) in the respective axial longitudinal section.

A valve drive for a cylinder head of an internal combustion engine has a camshaft which is rotatably mounted in a first and a second camshaft bearing and which includes at least one cam with a first cam curve and a second cam curve that differs from the first cam curve. A gas exchange valve can be actuated by the first or the second cam curve via a cam follower. A camshaft section is provided, by which the cam can be moved by an actuator such that the gas exchange valve can be actuated either via the first or the second cam curve via the cam follower. The camshaft and the cam have a fixed position relative to each other. The camshaft can be axially moved in the first and the second camshaft bearing. The camshaft bearings consist of a camshaft bearing block and a common bearing frame. A lubricant supply bore is provided which opens into a fourth lubricant groove in the bearing frame in order to supply the bearing points with lubricant. A first lubricant groove is provided in the first camshaft bearing block, and a second lubricant groove is provided in the second camshaft bearing block. These lubricant grooves correspond to the fourth lubricant groove and are open in the direction of the cam follower.

A cam follower for a ram of a metal can necker machine is provided. The cam follower has an outer ring and an inner ring coaxially disposed in the outer ring. A plurality of rolling elements is disposed in an annular cavity between the outer ring and the inner ring. The plurality of rolling elements is disposed between a first seal and a second seal. A shaft is received in a bore in the inner ring and is fixed relative thereto about the shaft axis. The outer ring is received in a tire. The tire has a thickness and a crown radius. The composition of the tire includes a metallic material, a plastic material, a non-metallic material, and combinations thereof.

This exhaust cam shaft (2) is provided with a shaft part (5) and cam parts (6 to 13) provided on the outer circumference of the shaft part (5). The shaft part (5) has holes (16, 17, 19) opened at predetermined positions on the outer circumferential surface of the shaft part (5). The holes (16, 17, 19) are formed so as to be gradually tapered from an outside of the shaft part (5) toward a center of the shaft part (5) in a radial direction.

A sliding bearing element has a steel supporting layer onto which a 2-layer composite is applied which consists of an aluminum-based substrate having a layer thickness hs of 0.2 to 0.4 mm and an aluminum-based sliding layer having a layer thickness hG of 0.005 to 0.1 mm. The substrate and the sliding layer are joined by roll bonding. A sliding bearing is made from two sliding bearing elements of this kind, which are predominately used for applications in high-performance engines, principally for connecting-rod bearings, crankshaft main bearings and connecting rod bushes, but also in applications in mounting camshafts and counterbalance shafts as well as transmissions.

A camshaft and methods of installing a camshaft, the camshaft having at least one detachable bearing journal to enable varied camshaft designs to be assembled into an engine.

The present invention relates to a camshaft device, which allows a plurality of components to be assembled to a main shaft, and a method for manufacturing the camshaft device. The camshaft device may include: a main shaft lengthily extending in the lengthwise direction; at least one cam lobe assembled to the main shaft and formed eccentrically from a rotation axis of the main shaft; at least one journal bearing assembled to the main shaft and formed to rotatably support the main shaft; and at least one guide shaft assembled to the main shaft and installed between the cam lobe and another cam lobe so as to align an assembling position of the cam lobe or the journal bearing.