Patent ID: 11945525
Assignee: CATERPILLAR INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 7:
8. A track link joint sealing system, comprising:
a first track link including:
a first body including a first inner surface and a first outer surface;
a counterbore extending into the first inner surface of the first body, the counterbore defining a radial axis; and
a first bore extending through the first body, the first bore configured about the radial axis;

a second track link pivotably joined to the first track link via a bushing and a pin, the second track link including a second body and a second bore extending through the second body;
the bushing rotatably configured within the counterbore and the first bore,
the bushing including a first cylindrical body having an at least partially annular configuration,
the first cylindrical body including a first inner circumferential surface and a first outer circumferential surface, and
the first outer circumferential surface being configured to extend through the second bore and being configured to be rotatably received within the counterbore;

the pin configured within the bushing,
the pin including a second cylindrical body,
the second cylindrical body including a second outer circumferential surface,
the second outer circumferential surface defining a first interface with the first inner circumferential surface, and
the pin being configured to at least partially extend through the first bore and the second bore; and

a seal disposed at a second interface between the first outer circumferential surface of the bushing and an inner radial surface of the counterbore,
the seal being enclosed by the first outer circumferential surface of the bushing and the inner radial surface of the counterbore,
the seal forming a radial seal between the first outer circumferential surface and the inner radial surface of the counterbore, and
the radial seal being configured to prevent material from entering into, or exiting from, the first interface.