Needle roller bearing
AssigneeAktiebolaget Skf
InventorsShihao Du, Thomas Kettner, Harald Metz, Sebastian Dinkel
Life of this patent
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Abstract
Disclosed is a needle roller bearing, in particular for use in supporting a bottom roller in a spinning machine. The needle roller bearing includes an inner ring and an outer ring which are arranged such that the inner ring and the outer ring are rotatable relatively to each other around a bearing rotation axis. A rolling chamber is defined between the inner ring and the outer ring, in which a plurality of needle rollers are arranged. A solid lubricant is disposed in the rolling chamber of the needle roller bearing.
Claims9
A needle roller bearing for use in supporting a bottom roller in a spinning machine, the needle roller bearing comprising:
- an inner ring and an outer ring configured such that the inner ring and the outer ring are rotatable relatively to each other around a bearing rotation axis, wherein
- a rolling chamber is defined between the inner ring and the outer ring, in which a plurality of needle rollers is arranged, and
- a solid lubricant is disposed in the rolling chamber of the needle roller bearing, the solid lubricant comprising a porous structure, the porous structure comprising pores having a pore size ranging from 1-10 μm,
- the inner ring further comprises an outermost lateral face and the solid lubricant contacts the outermost lateral face.
A bottom roller bearing for supporting a bottom roller in a spinning machine, the bottom roller bearing comprising:
- at least one needle roller bearing including an inner ring and an outer ring configured such that the inner ring and the outer ring are rotatable relatively to each other around a bearing rotation axis, the inner ring comprising a first lateral side and a second lateral side, wherein
- a rolling chamber is defined between the inner ring and the outer ring, in which a plurality of needle rollers is arranged, and
- a solid lubricant is disposed in the rolling chamber of the needle roller bearing, the solid lubricant extending over the first lateral side and the second lateral side,
- the inner ring further comprises an outermost lateral face and the solid lubricant contacts the outermost lateral face.
A needle roller bearing for use in supporting a bottom roller in a spinning machine, the needle roller bearing comprising:
- an inner ring and an outer ring configured such that the inner ring and the outer ring are rotatable relatively to each other around a bearing rotation axis, the inner ring having an inner axial length, the outer ring having an outer axial length, the inner axial length being shorter than the outer axial length, wherein
- a rolling chamber is defined between the inner ring and the outer ring, in which a plurality of needle rollers is arranged, and
- a solid lubricant is disposed in the rolling chamber of the needle roller bearing, the solid lubricant comprising a porous structure, the porous structure comprising pores having a pore size ranging from 1-10 μm,
- the inner ring further comprises an outermost lateral face and the solid lubricant contacts the outermost lateral face.
Dependencies are inferred from the claim text.