Oscillating disc cutter with speed controlling bearings
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United States of America Patent
Stats
-
Jun 10, 2008
Grant Date -
Jun 30, 2005
app pub date -
Apr 22, 2003
filing date -
Apr 22, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An oscillating disc cutter including a cutting disc and a drive mechanism. The drive mechanism includes a drive shaft to effect eccentric oscillation of the cutting disc and a radial bearing disposed to permit relative rotation between the drive shaft and the cutting disc. The cutter further including a hydrostatic axial bearing disposed to react axial forces while accommodating induced rotation of the cutting disc when operatively engaged and to induce a rotational drag thereby limiting rotational peed of the cutting disc when free running. A water pressurized fluid bearing induces a predetermined axial load in the hydrostatic bearing such that a predetermined maximum running clearance in the hydrostatic bearing is maintained.
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