LOW FRICTION BALL BEARING CAGE DESIGN WITH OPTIMIZED CONTACT SURFACE
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United States of America Patent
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Issued Date -
Apr 13, 2017
app pub date -
Oct 12, 2015
filing date -
Oct 12, 2015
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Abstract
A cage for a rolling bearing assembly with optimized contact surfaces to reduce friction between the cage and the adjacent contact surfaces is disclosed. The rolling bearing assembly includes a radially inner bearing ring including a radially inner race defined on a radially inner rolling element facing surface, a radially outer bearing ring including a radially outer race defined on a radially outer rolling element facing surface, and a plurality of rolling elements supported to roll between the radially inner race and the radially outer race. The cage includes a first rim including a first rolling element guide surface facing a plurality of rolling elements. A first outer surface facing away from the first rolling element guide surface includes a first outward projection. In another embodiment two bearing assemblies are provided, and each of the bearing assemblies includes a cage with optimized contact surfaces.
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