A track link comprises a body defining a top surface, a bottom surface, a first side surface and a second side surface, a proximate end and a distal end, a first bore adjacent the distal end defining a first longitudinal axis and a second bore adjacent the proximate end defining a second longitudinal axis; wherein either the first bore or the second bore is a blind bore, forming a counterbore configured to house a seal assembly and the counterbore defines a wall that forms an angle with the longitudinal axis of the bore that is greater than zero degrees.

A flexible thrust washer member comprises a body including an annular skirt portion that defines an outer diameter and a central aperture having an inner diameter, wherein the body has a conical configuration that defines a conical axis and a radial direction and the outer diameter of the annular skirt portion is spaced away from the central aperture along the conical axis and along the radial direction, defining an axial dimension and a radial dimension and the body defines at least two slits that separate the annular skirt portion into a plurality of fingers.

A method of manufacturing an undercarriage track joint assembly includes forming at least a first portion of a seal assembly by laser brazing an annular, metal sealing washer to a first track link of the undercarriage track joint assembly. The method may also include performing the laser brazing to form at least one of an annular fillet of braze material between the first track link and at least a portion of an inner diameter surface of the washer and an annular fillet of braze material between the first track link and at least a portion of an outer diameter surface of the washer. The method may still further include inserting a second portion of the seal assembly into a counterbore formed in an axial face of a second track link of the track joint assembly such that an axial sealing face of the washer opposite from the first track link slidably engages with the second portion of the seal assembly on the second track link of the track joint assembly to form a sealing surface between the first and second track links.

A bushing is provided for use in a track assembly including a plurality of link members forming a track chain, a plurality of pin members configured to couple adjacent link members, a plurality of bushings configured to receive the pin members, and a drive sprocket including a plurality of teeth configured to engage with the plurality of bushings. The bushing may include a central axial bore configured to receive a pin member. The bushing may also include a center portion having a first diameter, the center portion being configured to engage with a concave recess defined by adjacent teeth. The bushing may further include at least one outer portion having a second diameter, the outer portion being configured to engage with a link member. A ratio between the first diameter and the second diameter may be greater than or equal to about 1.5:1.

A thrust ring comprises a body including a cylindrical outer surface, a cylindrical inner surface, defining a central axis, an axial direction, a circumferential direction, a first axial end, a second axial end, and at least one recess on the first axial end, and at least one protrusion extending from the cylindrical inner surface toward the central axis.

The present invention relates to a link seal of a crawler track, and a method of manufacturing the same. During the manufacturing of the link seal, a shape restoration part is formed integrally on the link seal body in order to enhance the restorative force partially or entirely and without needing additional ring-shaped shape restoration member, so the link seal of a crawler track does not need assembly work of the link seal, has a simple structure, can maintain the restorative force of the link seal for a long time without elongation of the ring-shaped shape restoration member, and remarkably reduce manufacturing costs of the link seal.

A method of fabricating a track link comprises creating a rail portion of a track link from a high alloy steel, creating a main body portion of a track link from a low alloy steel, and friction adhering the rail portion onto the main body portion.

The present invention relates to a link seal of a crawler track, and a method of manufacturing the same. During the manufacturing of the link seal, a shape restoration part is formed integrally on the link seal body in order to enhance the restorative force partially or entirely and without needing additional ring-shaped shape restoration member, so the link seal of a crawler track does not need assembly work of the link seal, has a simple structure, can maintain the restorative force of the link seal for a long time without elongation of the ring-shaped shape restoration member, and remarkably reduce manufacturing costs of the link seal.

A method of manufacturing an undercarriage track joint assembly includes forming at least a first portion of a seal assembly by laser brazing an annular, metal sealing washer to a first track link of the undercarriage track joint assembly. The method may also include performing the laser brazing to form at least one of an annular fillet of braze material between the first track link and at least a portion of an inner diameter surface of the washer and an annular fillet of braze material between the first track link and at least a portion of an outer diameter surface of the washer. The method may still further include inserting a second portion of the seal assembly into a counterbore formed in an axial face of a second track link of the track joint assembly such that an axial sealing face of the washer opposite from the first track link slidably engages with the second portion of the seal assembly on the second track link of the track joint assembly to form a sealing surface between the first and second track links.

Disclosed are various exemplary embodiments of a track joint assembly. In one exemplary embodiment, the track joint assembly may include a first link having a first bore. The track joint assembly may also include a second link having a second bore. Additionally, the track joint assembly may include a pin positioned at least partially within the first bore. The track joint assembly may also include an inner bushing positioned coaxially around the pin, and at least partially within the second bore. In addition, the track joint assembly may include an outer bushing positioned coaxially around the inner bushing. The track joint assembly may also include a seal assembly positioned between the first link and the second link to form a hermetic seal between the first link and the second link.