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US 2016/0108962 A1Published application
Rolling bearing
AssigneeNtn Corporation
InventorsHiroyuki MIYAZAKI, Kiyoshige YAMAUCHI, Yoriko KOSAKA, Hisa KISHIDA
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AssigneeNtn Corporation
InventorsHiroyuki MIYAZAKI, Kiyoshige YAMAUCHI, Yoriko KOSAKA, Hisa KISHIDA
Estimating the term…
A rolling bearing includes an outer bearing race and an inner bearing race defining a bearing space therebetween. Rolling elements are mounted in the bearing space. A seal device is provided at one axial opening of the bearing space and includes a ring member formed of a metal and formed with through holes configured such that lubricating oil can pass through the through holes and solid foreign substances cannot pass through the through holes. One of the outer bearing race and the inner bearing race is stationary, and the other is rotatable. The ring member is in engagement with the stationary bearing race. A sub-ring member, which is a separate member from the ring member and made of a metal, is fixed to the rotatable bearing race. Between the ring member and the sub-ring member, a gap is defined which constitutes a labyrinth seal structure.
A rolling bearing comprising an outer bearing race and an inner bearing race defining a bearing space between the outer bearing race and the inner bearing race, rolling elements mounted in the bearing space, and a seal device provided at one of axial openings of the bearing space and including a ring member formed of a metal or a resin and formed with through holes configured such that lubricating oil can pass through the through holes and solid foreign substances cannot pass through the through holes.
Dependencies are inferred from the claim text.