Rolling bearing, hub unit, rolling contact member, universal joint, torque transmission member for universal joint, and method of producing the same
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United States of America Patent
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Aug 11, 2015
Grant Date -
Sep 5, 2013
app pub date -
Apr 15, 2013
filing date -
Dec 20, 2006
priority date (Note) -
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Abstract
A deep-grooved ball bearing including a rolling contact member formed of a sintered β-sialon inexpensive and capable of reliably ensuring sufficient durability includes an outer ring and an inner ring, and a plurality of balls arranged in contact with the outer ring and the inner ring on an annular raceway. The ball is configured of a sintered body that contains as a main component a β-sialon represented by a compositional formula of Si6-zAlzOzN8-z and satisfying 0.1≦z≦3.5 and has a remainder formed of an impurity.
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