Rock drilling machine and axial bearing

Details Rock drilling machine and axial bearing Rock drilling machine and axial bearing

2003-12-29

2008-09-02

Bomar, Shane (Department: 3676)

Boring or penetrating the earth

Below-ground impact members

Fluid-operated

C175S297000, C175S321000, C173S004000, C173S212000

Reexamination Certificate

active

07419015

ABSTRACT:
An axial bearing includes a first piston and a second piston. Axial contact surfaces between the pistons are arranged in the same pressure space. The same pressure fluid fed to the axial bearing acts on the contact surfaces and on working pressure surfaces of the pistons. A rock drilling machine is also provided with such an axial bearing.

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