Bearing
OwnerWei LI, Jianying YANG +2inventors
InventorsWei LI, Jianying YANG, Wei WANG, Hongyuan AN
Life of this patent
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Abstract
A bearing includes an inner ring having an inner raceway, an outer ring having an outer raceway, rolling elements located between the inner raceway and the outer raceway, a cage for holding the rolling elements, and a seal. A bearing inner space is defined by the inner ring, the outer ring and the seal and a free space is a portion of the bearing inner space not occupied by the rolling elements and the cage. The lubricating oil is provided in the free space on a surface of the inner raceway and on a surface of the outer raceway, and a volume of the lubricating oil is less than 5% of a volume of the free space.
Claims15
A bearing comprising:
- an inner ring having an inner raceway;
- an outer ring having an outer raceway;
- rolling elements located between the inner raceway and the outer raceway;
- a cage for holding the rolling elements;
- and
- a seal;
- wherein a bearing inner space is defined by the inner ring, the outer ring and the seal;
- wherein a free space is a portion of the bearing inner space not occupied by the rolling elements and the cage,
- wherein lubricating oil is provided in the free space on a surface of the inner raceway and on a surface of the outer raceway, and
- wherein a volume of the lubricating oil is less than 5% of a volume of the free space.
A method for applying lubricating oil to a bearing, comprising:
- immersing the bearing in the lubricating oil, the bearing including an inner ring with an inner raceway, an outer ring with an outer raceway, rolling elements located between the inner raceway and the outer raceway, a cage for holding the rolling elements, and a seal;
- performing a centrifugal drying operation for the bearing to obtain a bearing for which the volume of the lubricating oil in a free space inside the bearing accounts for less than 5% of the volume of the free space inside the bearing,
- wherein the lubricating oil is at least attached to the surface of the inner raceway and the surface of the outer raceway,
- wherein the free space inside the bearing is space of the bearing inner space not occupied by the rolling elements and the cage, and
- wherein the bearing inner space is a space defined by the inner ring, the outer ring and the seal.
Dependencies are inferred from the claim text.