Bomag Gmbh

Berrang Entwicklungs Gmbh

Joachim Hermes

Robert Laux

Monica Wolf

Arne Schlichting

Domenico Muscara

Daria Hefter

Bernd Raufelder

Disclosed is a fastening element, which can be provided in particular as a wheel nut, to be screwed onto a thread. The fastening element includes a nut with an internal thread. In addition, the fastening element includes an expansion sleeve which connects axially to the nut. The expansion sleeve is developed without an internal thread and is realized in one piece with the nut. In addition, the fastening element includes a pressure plate. The pressure plate is arranged on a side of the expansion sleeve remote from the nut and is fastened so as to be captively rotatable on the expansion sleeve.

Fastening element

The present invention relates to a chisel device for a ground milling machine, comprising a chisel holder having a mounting orifice and a milling chisel, wherein the milling chisel has a basic body of, in particular, a uniform material and has a shaft and a tool region, said shaft being held, under working conditions, in the mounting orifice while the tool region (P) protrudes, under working conditions, from the chisel holder, wherein said milling chisel has a wear protection cap consisting of carbide and having a tip and a protective jacket, wherein the wear protection cap is positioned on the tool region (P) in such a manner that it covers at least 70% of the external surface of the tool region (P). The present invention also relates to a milling chisel for such a chisel device.

Chisel device and wear-protected chisel for ground milling machines

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Viernheim, Germany

Joachim Hermes