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US 11,554,823 B2Granted
Sleeve bearing having a flared end
AssigneeCaterpillar Inc.
InventorsBenjamin I. Jones, Jianjun Wang
Life of this patent
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Abstract
A cartridge pin assembly in a track chain assembly includes a sleeve bearing having a flared end.
Claims11
A cartridge pin assembly comprising:
- a first collar including:
- a first body defining a first bore with a first diameter and a second bore in communication with the first bore,
- the second bore having a second diameter that is greater than the first diameter;
- a second collar including:
- a second body defining a third bore with a third diameter and a fourth bore that is in communication with the third bore,
- the fourth bore having a fourth diameter that is greater than the third diameter, and
- the first bore and the third bore are aligned, defining a common track pin bore longitudinal axis;
- a track pin disposed in the first bore and the third bore,
- the track pin defining a radial direction and a circumferential direction;
- and
- a first sleeve bearing disposed in the second bore radially and circumferentially about the track pin,
- wherein the first sleeve bearing includes a first flared end disposed along the longitudinal axis,
- wherein the first flared end is spaced a first distance from a seal assembly at a first point and is spaced a second distance from the seal assembly at a second point, and
- wherein the first distance is different from the second distance.
11 more elements
A track chain assembly comprising:
- a first track member including
- a first track shoe portion;
- and
- a first forked portion extending upwardly from the first track shoe portion,
- the first forked portion including a first lug and a second lug,
- wherein the first lug defines a first hole defining a first hole diameter and a first hole axis, and
- wherein the second lug defines a second hole defining a second hole diameter and a second hole axis,
- the second hole axis being aligned with the first hole axis;
- a second track member including
- a second track shoe portion;
- and
- a third lug extending upwardly from the second track shoe portion,
- the third lug defining a third hole defining a third hole diameter and a third hole axis that is aligned with the second hole axis;
- and
- a cartridge pin assembly disposed in the first hole, the second hole, and the third hole,
- the cartridge pin assembly including
- a first collar including a first body defining a first bore with a first diameter and a second bore in communication with the first bore,
- the second bore having a second diameter that is greater than the first diameter;
- a second collar including a second body defining a third bore with a third diameter and a fourth bore that is in communication with the third bore,
- the fourth bore having a fourth diameter that is greater than the third diameter;
- a track pin disposed in the first bore and the third bore,
- the track pin including a cylindrical track pin body defining a radial direction and a circumferential direction;
- a first sleeve bearing that is disposed in the second bore radially and circumferentially about the track pin;
- a bushing that is disposed radially and circumferentially about the track pin;
- and
- a first seal assembly that is disposed in the second bore is configured to contact the bushing and the first body of the first collar,
- wherein the first sleeve bearing includes a first flared end,
- wherein the first flared end is spaced a first clearance distance away from the first seal assembly at a first point and is spaced a second clearance distance away from the first seal assembly at a second point, and
- wherein the first clearance distance is different from the second clearance distance.
26 more elements
Dependencies are inferred from the claim text.