Abstract: A data management device for a two-wheeled vehicle, in particular an e-bike, pedelec, or the like, for the management and/or the diagnosis of operating data of the two-wheeled vehicle. The device includes a first communication interface for wireless communication with wireless two-wheeled vehicle devices of the two-wheeled vehicle, a second communication interface designed for communication with at least one two-wheeled vehicle system device, a third communication interface for the in particular authenticated and/or encrypted communication with a diagnostic device for the at least partial provision, modification, deletion, and/or retrieval of operating data of the two-wheeled vehicle, and a data management component for the management of operating data of wireless two-wheeled vehicle devices. The data management component being connected to the third communication interface and being designed to receive, to modify, to delete, and/or to provide operating data.

Abstract: A universal chuck is presented which has the ability to either transmit a tensile or pulling force to the end of a piercing rod or transmit a rotational moment or force to a drill bit on a piercing machine for piercing a tap hole of a shaft furnace. The universal chuck of this invention comprises a rotary body mounted on the drive spindle of a working member slidably mounted on a piercing machine. A suitable support structure integral with the working member forms a guide cage around the rotary body. Structure for transmitting the tensile or pulling force to the end of a piercing rod and a rotational moment or force to a drill bit along with structure for adequately controlling operating and cooling fluids to a drill bit are arranged about a front cavity in the rotary body.