Abstract: A fork lift truck has a rear-end axle provided with a measuring device to determine the axle load. To enable the axle load to be determined using simple means which are reliable in operation, at least one shearing force detector (2 or 3) or normal force detector (6) in the form of a structural component and arranged in the force flux is integrated into the axle.

Abstract: The invention relates to an industrial truck with at least one drive battery and at least one apparatus (A) for determining the state of charge of the battery and to a method for operating such an industrial truck. The apparatus (A) for determining the state of charge of the battery includes a device (B) for determining the dynamic internal resistance and a device (C) for determining the internal cell voltage of the battery with the aid of the dynamic internal resistance.

Abstract: A traction drive of a machine has an internal combustion engine, a transmission module located downstream of the engine and having an adjustable output speed, and a drive axle with a differential transmission, having a mechanical drive connection with the transmission module. The transmission module is a removable, replaceable, and interchangeable transmission module (3) which can be selected from a plurality of transmission modules (3) having different transmission types, each with a standardized input interface and a standardized output interface. A first transmission module (3) can be a hydrostatic compact transmission having a hydraulic pump (5) with an adjustable hydraulic delivery volume, and a hydraulic motor (6) in a functional hydraulic connection with the pump (5). A second transmission module (3) can be an electric compact transmission having a generator (7) and an electric motor (8) in a functional electrical connection with it.

Abstract: A hydrostatic-electric drive has an internal combustion engine, a pump driven by the internal combustion engine and located together with at least one hydromotor in a hydraulic circuit, an electric energy storage device, and an electric motor which is connected to the energy storage device and which can be placed in active connection with the hydraulic circuit. The pump is located in a drive connection with the electric motor parallel to the internal combustion engine.

Abstract: A multiple-disk brake or clutch (1) includes at least one disk (2, 4) in a housing and at least one disk located on a shaft. Coolant is located in the housing (3). A coolant outlet (10) and a coolant inlet (7) of a cooling circuit (9) are located on the housing (3), whereby coolant can be delivered to the coolant outlet (10) by means of the disks (2, 4).