Seal Assembly for Track Joint Assembly of Undercarriage

摘要

A seal assembly can be incorporated into a track joint assembly of an undercarriage of a track-type machine. The track joint can have a first member pivotable about a rotational axis relative to a second member thereof. The first member includes a seal member engagement surface defining, at least in part, an axially-extending seal cavity about the rotational axis and within which the seal assembly is disposed. The seal assembly can include a thrust ring and a seal member mounted to the thrust ring. The seal member includes a first member engagement surface, a second member engagement surface, a frusto-conical inner relief surface, a thrust ring engagement surface, and an outer relief surface.

主权项

1. A seal member adapted for use in sealing a joint having a first member pivotable about a rotational axis relative to a second member thereof, the seal member comprising:
a first member engagement surface, the first member engagement surface including an axial segment, extending along the rotational axis, and a radial segment, extending along a radial axis perpendicular to the rotational axis; a second member engagement surface, the second member engagement surface adjacent the axial segment of the first member engagement surface; a frusto-conical inner relief surface, the frusto-conical inner relief surface adjacent the second member engagement surface such that the second member engagement surface is between the axial segment of the first member engagement surface and the frusto-conical inner relief surface; a thrust ring engagement surface, the thrust ring engagement surface extending along the rotational axis between the radial segment of the first member engagement surface and the frusto-conical inner relief surface; and an outer relief surface, the outer relief surface disposed between the radial segment and the axial segment of the first member engagement surface; wherein the second member engagement surface extends radially outward, measured along the radial axis, of the radial segment of the first member engagement surface.