A portal gear box assembly effective to lift and change the gear ratio of a wheel of an off-road vehicle includes a housing, an input gear sub-assembly, an output gear sub-assembly, and an idler gear sub-assembly effective for linking the input gear to the output gear. The input gear sub-assembly includes an input gear, the output gear sub-assembly includes an output gear, and the idler gear sub-assembly includes at least one idler gear and at least one removable adaptor effective for holding the idler gear in either a first position or a second position different from the first position. The sub-assemblies may also include bearings to facilitate movement of the gears.

A portal gear box assembly effective to lift and change the gear ratio of a wheel of an off-road vehicle includes a housing, an input gear sub-assembly, an output gear sub-assembly, and an idler gear sub-assembly effective for linking the input gear to the output gear. The input gear sub-assembly includes an input gear, the output gear sub-assembly includes an output gear, and the idler gear sub-assembly includes at least one idler gear and at least one removable adaptor effective for holding the idler gear in either a first position or a second position different from the first position. The sub-assemblies may also include bearings to facilitate movement of the gears.

A pump assembly comprising at least one housing and two gear wheels. The housing comprises at least one base plate and a cover element, which are interconnectable to form a pressure chamber. An outer circumferential surface of each of the two gear wheels has a toothing, and the gear wheels intermesh via the toothings to convey a fluid. The gear wheels are arranged along an axial direction in the pressure chamber between the base plate and the cover element. The pressure chamber is formed in the housing at least by two bores. The first gear wheel is arranged in a first bore and the second gear wheel is arranged in a second bore. Centering pins are provided for aligning the bores and the gear wheels with respect to one another, wherein all centering pins are arranged exclusively in the cover element or exclusively in the base plate.

A pump assembly comprising at least one housing and two gear wheels. The housing comprises at least one base plate and a cover element, which are interconnectable to form a pressure chamber. An outer circumferential surface of each of the two gear wheels has a toothing, and the gear wheels intermesh via the toothings to convey a fluid. The gear wheels are arranged along an axial direction in the pressure chamber between the base plate and the cover element. The pressure chamber is formed in the housing at least by two bores. The first gear wheel is arranged in a first bore and the second gear wheel is arranged in a second bore. Centering pins are provided for aligning the bores and the gear wheels with respect to one another, wherein all centering pins are arranged exclusively in the cover element or exclusively in the base plate.

A lightweight gearbox control mechanism for air cushion vehicles provides change in direction of rotation for the vehicle lift fan and allows the gearbox to be used at port or starboard vehicle locations without the use of specialty tools.

A lightweight gearbox control mechanism for air cushion vehicles provides change in direction of rotation for the vehicle lift fan and allows the gearbox to be used at port or starboard vehicle locations without the use of specialty tools.

A device includes a cylinder sleeve (3, 13), which is at least indirectly arranged at a housing (7) and at least three radially outward extending journals (5). Each journal (5) comes to rest, at least on one side, against a roller element (6a, 6b) accommodated at the housing (7) in order to support the cylinder sleeve (3, 13) on the housing (7) in at least one tangential direction. The device can be designed, in particular, as a planetary transmission or as an electric machine.

A device includes a cylinder sleeve (3, 13), which is at least indirectly arranged at a housing (7) and at least three radially outward extending journals (5). Each journal (5) comes to rest, at least on one side, against a roller element (6a, 6b) accommodated at the housing (7) in order to support the cylinder sleeve (3, 13) on the housing (7) in at least one tangential direction. The device can be designed, in particular, as a planetary transmission or as an electric machine.

An axle drive for a vehicle comprising at least one drivable vehicle axle oriented transversely to a longitudinal direction of the vehicle comprises: a drive shaft that extends in parallel with the longitudinal direction and that is configured to receive drive power from an electric motor at an input section and to output said drive power at an output section; a driven shaft that extends in parallel with the drive shaft and that is configured to receive drive power from the output section of the drive shaft at an input section and to output said drive power to the vehicle axle via a bevel gear arranged at a first end of the driven shaft; and a brake, in particular a parking brake, having a brake disk that is arranged at a second end of the driven shaft and that is arranged between the input section of the drive shaft and the input section of the driven shaft with respect to the longitudinal direction.

An axle drive for a vehicle comprising at least one drivable vehicle axle oriented transversely to a longitudinal direction of the vehicle comprises: a drive shaft that extends in parallel with the longitudinal direction and that is configured to receive drive power from an electric motor at an input section and to output said drive power at an output section; a driven shaft that extends in parallel with the drive shaft and that is configured to receive drive power from the output section of the drive shaft at an input section and to output said drive power to the vehicle axle via a bevel gear arranged at a first end of the driven shaft; and a brake, in particular a parking brake, having a brake disk that is arranged at a second end of the driven shaft and that is arranged between the input section of the drive shaft and the input section of the driven shaft with respect to the longitudinal direction.