Wheel shaft supporting apparatus for grinding machine
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United States of America Patent
Stats
-
Aug 8, 2006
Grant Date -
Dec 2, 2004
app pub date -
May 11, 2004
filing date -
May 30, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pair of hydrostatic radial bearing devices 42, 43 is mounted on right and left side surface of a front portion of a wheel slide 34 in order to support rotatably wheel shafts 45, 52 respectively. A thrust bearing device 45 mounted in either one of wheel shafts 45, 52 supports either wheel shaft 45 or 52 in a thrust direction. A shaft coupling mechanism 60 is installed in wheel shafts 45, 52. A taper cylindrical portion 61 is projected from either one of wheel shafts 45, 52 and fitted tightly with a taper inside opening 65 formed in remaining of wheel shafts 45, 52. A vertical end surface 52t, 49t or Fb extending from a base of the taper cylindrical portion 61 is fitted tightly with another vertical end surface 45t, 52t or 45t of the remaining wheel shaft 45 or 52.
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