Dynamic bearing unit
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United States of America Patent
Stats
-
Jul 14, 2009
Grant Date -
Jun 28, 2007
app pub date -
Dec 22, 2006
filing date -
Dec 27, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fluid dynamic pressure effect can be sufficient without receiving a large effect of viscous friction of lubricating oil with changes in the environmental temperature in which it is used, and smooth starting of the rotating shaft can be ensured by regulating the gap between the rotating shaft and bearing within a suitable range. An outer diameter of the bearing, D, a length in an axial direction of the bearing, L, a gap at a radial side which is between the rotating shaft and the bearing, C, and an inclining height of the bearing end surface to which the flange is faced, δ, satisfy the expression L/D
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