Abstract: A segment adapted to be mounted on a shaft to form a camshaft, wherein the segment comprises a through hole adapted to receive the shaft, and wherein the shape of the hole in the segment is adapted to the cross section of the shaft in such a way that when mounted, the segment has a strain causing it to exert a radial load on the shaft in at least two contact points, wherein an inner surface of the hole has at least one deviation to create at least three contact points between the segment and the shaft, and wherein the at least three contact points are non-uniformly distributed about the circumference of the hole. Advantages include that the camshaft can be made lightweight, with less difficulties and at a lower cost as well as with increased precision in angular positioning of the segment on the shaft.

Abstract: A method of stepping up the speed of a rotary motion from a first speed, supplied to an input shaft (26), to a second speed delivered by an output shaft (28), comprises transmitting said rotary motion from said input shaft (26), via a drive gear (34) of said input shaft (26), the drive gear (34) being helical and having a first helix angle (?in), to a layshaft arrangement, so as to generate a first axial thrust (F1) of the input shaft (26) in a first axial direction; transmitting said rotary motion from said layshaft arrangement, via a driven gear (44) of said output shaft (28), said driven gear (44) being helical and having a second helix angle (?out) that is larger than said first helix angle (?in), to said output shaft (28), so as to generate a second axial thrust (F2) of the output shaft (28) in a second direction, said second direction being substantially opposite to said first direction; and applying said first axial thrust (F1) and said second axial thrust (F2) to the same location of an axially rigid

Abstract: A method of stepping down the speed of a rotary motion from a first speed, supplied to an input shaft, to a second speed delivered by an output shaft, comprises transmitting said rotary motion to said output shaft, via a driven gear of said output shaft, the driven gear being helical and having a first helix angle, from a layshaft arrangement, so as to generate a first axial thrust of the output shaft in a first axial direction; transmitting said rotary motion to said layshaft arrangement, via a drive gear of said input shaft, said drive gear being helical and having a second helix angle that is larger than said first helix angle, from said input shaft, so as to generate a second axial thrust of the input shaft in a second direction, said second direction being substantially opposite to said first direction; and applying said first axial thrust and said second axial thrust to the same location of an axially rigid support structure, such that said first and second axial thrusts counter-act and at least partly

Abstract: A method of stepping up the speed of a rotary motion from a first speed, supplied to an input shaft (26), to a second speed delivered by an output shaft (28), comprises transmitting said rotary motion from said input shaft (26), via a drive gear (34) of said input shaft (26), the drive gear (34) being helical and having a first helix angle (?in), to a layshaft arrangement, so as to generate a first axial thrust (F1) of the input shaft (26) in a first axial direction; transmitting said rotary motion from said layshaft arrangement, via a driven gear (44) of said output shaft (28), said driven gear (44) being helical and having a second helix angle (?out) that is larger than said first helix angle (?in), to said output shaft (28), so as to generate a second axial thrust (F2) of the output shaft (28) in a second direction, said second direction being substantially opposite to said first direction; and applying said first axial thrust (F1) and said second axial thrust (F2) to the same location of an axially rigid

Abstract: A lubricant applicator (1) for a wheel (8) of a trackbound vehicle comprises an applicator cylinder (26) for a lubricant stick (6). The lubricant applicator (1) further comprises a piston (36), which is arranged to run in the applicator cylinder (26) and to press the lubricant stick (6) against said wheel (8), and a space (37) inside the applicator cylinder (26) which is arranged to receive a pressurized fluid for pressing the piston (36) against the lubricant stick (6).

Abstract: A gyratory crusher has a crushing head fixedly attached to an upper portion of a substantially vertical shaft, on which crushing head a first crushing shell is mounted, and a frame on which a second crushing shell is mounted. The second crushing shell defines, together with the first crushing shell, a crushing gap. The gyratory crusher has a space adapted to contain liquid. The space is defined by a piston, which is formed at least partly of the lower end of the shaft, a cylinder, which is formed at least partly in an eccentric assembly, and a bottom element. The space is adapted to form a cushion with the aid of the liquid, so that the cushion can serve as a thrust bearing transmitting vertical forces from the crushing head to the bottom element.

Abstract: A gyratory crusher has a crushing head fixedly attached to an upper portion of a substantially vertical shaft, on which crushing head a first crushing shell is mounted, and a frame on which a second crushing shell is mounted. The second crushing shell defines, together with the first crushing shell, a crushing gap. The gyratory crusher has a space adapted to contain liquid. The space is defined by a piston, which is formed at least partly of the lower end of the shaft, a cylinder, which is formed at least partly in an eccentric assembly, and a bottom element. The space is adapted to form a cushion with the aid of the liquid, so that the cushion can serve as a thrust bearing transmitting vertical forces from the crushing head to the bottom element.

Abstract: A gyratory crusher includes a crushing head on which a first crushing shell is mounted, and a frame on which a second crushing shell is mounted. The second crushing shell defines, together with the first crushing shell, a crushing gap. The gyratory crusher includes a space adapted to hold a liquid. The space is defined by a piston and a cylinder, any one of the piston and the cylinder being formed at least partly of a substantially vertical shaft around which the crushing head is arranged. The space is adapted to form, together with the liquid, a cushion, thereby enabling the cushion to serve as a thrust bearing and transmit vertical forces from the crushing head to the frame.

Abstract: A gyratory crusher includes a crushing head on which a first crushing shell is mounted, and a frame on which a second crushing shell is mounted. The second crushing shell defines, together with the first crushing shell, a crushing gap. The gyratory crusher includes a space adapted to hold a liquid. The space is defined by a piston and a cylinder, any one of the piston and the cylinder being formed at least partly of a substantially vertical shaft around which the crushing head is arranged. The space is adapted to form, together with the liquid, a cushion, thereby enabling the cushion to serve as a thrust bearing and transmit vertical forces from the crushing head to the frame.