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US 2026/0266339 A1Published application
Bearing Unit and Roller Assembly Including the Same
AssigneeLG Energy Solution, Ltd.
InventorsDong Hun Lim, Koo Youn Hwang, Min Su Kim
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a bearing unit and a roller assembly including the same, and more particularly, to a bearing unit configured to adjust an axial clearance between an inner race and an outer race of a bearing portion supporting a rotation shaft of a roller to an appropriate state, and a roller assembly including the bearing unit.
Claims18
A bearing unit comprising:
- a bearing portion configured to rotatably support a shaft;
- and
- a piston unit configured to apply an external force to the bearing portion in an axial direction of the shaft,
- wherein the bearing portion includes:
- an inner race coupled to the shaft and configured to rotate together with the shaft, and
- an outer race surrounding the inner race such that the inner race is disposed therein,
- the piston unit includes:
- a first piston disposed on one side of the bearing portion and configured to push and move the outer race of the bearing portion so as to eliminate an axial clearance, when the inner race of the bearing portion moves in a direction in which the inner race deviates from an inner portion of the outer race of the bearing portion and the axial clearance is generated between the inner race and the outer race of the bearing portion, and
- a second piston disposed on the other side of the bearing portion and configured to push and move the outer race of the bearing portion such that, when the axial clearance is eliminated by the first piston, the inner race deviates from the inner portion of the outer race of the bearing portion,
- wherein the direction in which the first piston pushes the outer race of the bearing portion and the direction in which the second piston pushes the outer race of the bearing portion are opposite to each other.
7 more elements
A roller assembly for press-molding powder into a sheet-type electrode or for conveying a sheet-type electrode, the roller assembly comprising:
- a roller;
- a shaft extending from the roller;
- and
- a bearing unit including a bearing portion configured to rotatably support the shaft and a piston unit configured to apply an external force to the bearing portion in an axial direction of the shaft,
- wherein the bearing portion includes:
- an inner race coupled to the shaft and configured to rotate together with the shaft, and
- an outer race surrounding the inner race such that the inner race is disposed in an inner portion of the outer race,
- the piston unit includes:
- a first piston disposed on one side of the bearing portion and a second piston disposed on the other side of the bearing portion and configured to push and move the outer race of the bearing portion so as to eliminate the axial clearance, when the inner race of the bearing portion moves in a direction in which the inner race deviates from an inner portion of the outer race of the bearing portion and an axial clearance is generated between the inner race and the outer race of the bearing portion, and
- a second piston disposed on the other side of the bearing portion and configured to push and move the outer race of the bearing portion such that, when the axial clearance is eliminated by the first piston, the inner race deviates from the inner portion of the outer race of the bearing portion,
- wherein the direction in which the first piston pushes the outer race of the bearing portion and the direction in which the second piston pushes the outer race of the bearing portion are opposite to each other.
8 more elements
Dependencies are inferred from the claim text.