Face gear and gear device
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United States of America Patent
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-
Jan 19, 2016
Grant Date -
Nov 6, 2014
app pub date -
Jan 21, 2013
filing date -
Jan 30, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
This face gear has a plurality of annularly arranged gear teeth. A recess for holding grease or another lubricant is formed in the tooth surface of each gear tooth. A recess forming area, which is the area in which the recess is formed, is provided between the tooth bottom and the pitch point in each gear tooth. In other words, a recess is not formed in the part of the tooth surface that is located between the tooth tip and the pitch point. As a result, the gear teeth can be effectively lubricated while minimizing instability in the meshing state between gears.
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