Dust Shield For A Pulley Bearing And A Pulley With A Dust Shield
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United States of America Patent
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Issued Date -
Jul 30, 2009
app pub date -
May 31, 2007
filing date -
Jun 1, 2006
priority date (Note) -
Abandoned
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Abstract
A dust shield to inhibit the ingress of foreign materials into a pulley bearing is disclosed as is a pulley including such a dust shield. The dust shield is press fit to one side of the bearing such that it is captive during assembly and/or installation of the pulley. A second dust shield can be provided on the opposite side of the bearing to further inhibit the ingress of foreign materials. Preferably, at least one of the dust shields includes a bolt retention feature which holds an installation bolt captive to the pulley prior to installation. The dust shields can be fabricated from selected materials with desired thermal characteristics to insulate the bearing from sources of undesired heat and/or to assist the removal of waste heat from the bearing.
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