Spindle device and machine tool having a spindle device

A spindle device comprising:

• a tool holder for holding a tool or a tool-holding tool interface;
• a spindle drive comprising a spindle rotor for rotationally driving said tool holder;
• at least one electrical load arranged on the side of said spindle rotor facing said tool holder;
• and
• a coil unit for supplying electrical energy to the at least one electrical load, wherein said coil unit is arranged on the side of said spindle rotor facing away from said tool holder.

A machine tool for machining a workpiece, the machine tool comprising:

• a spindle device including:
• a tool holder for holding a tool or a tool-holding tool interface,
• a spindle drive comprising a spindle rotor for rotationally driving said tool holder,
• at least one electrical load arranged on the side of said spindle rotor facing said tool holder, and
• a coil unit for supplying electrical energy to the at least one electrical load, wherein said coil unit is arranged on the side of said spindle rotor facing away from said tool holder;
• and
• a tool held on said tool holder of said spindle device.