Tool holder with groove ring

A tool holder for clamping a tool, wherein the tool holder comprises:

• a base body extending along a center axis (A) comprising:
• a machine connection part configured for arrangement of the tool holder in a mount of a machine spindle,
• a holding space comprising an access opening on a front facing away from the machine connection part,
• a first axial bearing surface that is arranged adjacent to the holding space and with distance to the access opening,
• a securing groove that is arranged between the access opening and the first axial bearing surface and
• a circumferential inner surface that is arranged between the securing groove and the first axial bearing surface,
• a clamping rotor arranged in the holding space, the clamping rotor having a clamping thread, which is configured to establish a threaded connection with a collet thread, and having a tube section extending around the center axis (A),
• a bearing ring that is arranged on the base body and that comprises a ring outer surface for abutment against the circumferential inner surface, a ring inner surface for abutment against a tube outer surface of the tube section and a second axial bearing surface that faces the first axial bearing surface, wherein the clamping rotor (29) is directly or indirectly supported on the first axial bearing surface and the second axial bearing surface, a groove ring inserted into the securing groove and supported on bearing ring.