An track chain may comprise a first chain portion and a second chain portion each having a plurality of track links, and a plurality of joints interconnecting opposing track links of the first chain portion and the second chain portion. Each of the joints may include a bushing received by the opposing track links and the bushing may define a bore. Each of the joints may further include a pin received through the bore of the bushing, and the pin may have an outer diameter with at least one crowned region.

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. In addition, the track joint assembly may include a solid pin positioned at least partially within the first bore. The track joint assembly may also include a bushing positioned coaxially around the pin. The bushing may include an axial end portion disposed in the second bore. The second link may include a sealing portion surrounding an axial end of the axial end portion. The sealing portion may include material having a different wear resistance than material of another portion of the second link.

A track joint assembly pivotally links together track links of a continuous track. To form the track joint assembly, the first track link may include a male lug projecting from an edge of the track link that can be received between first and second side lugs projecting from the second track link. A floating bushing may be disposed inside a lug bore of the male lug and is in lubricated contact with the male lug. To retain the lubricant, first and second seals are disposed at either side of the floating bushing. A pin is inserted through both the floating bushing and lug apertures disposed through the first and second side lugs respectively. The pin may be in dry contact with the floating bushing and is either in a clearance fit or transition fit so that it can rotated with respect to the floating bushing.

An track chain may comprise a first chain portion and a second chain portion each having a plurality of track links, and a plurality of joints interconnecting opposing track links of the first chain portion and the second chain portion. Each of the joints may include a bushing received by the opposing track links and the bushing may define a bore. Each of the joints may further include a pin received through the bore of the bushing, and the pin may have an outer diameter with at least one crowned region.

A debris deflector includes an at least partially annular body defining a central axis, a radial direction, and a circumferential direction about the central axis. The at least partially annular body includes an outer radial extremity defining surface, an inner radial extremity defining surface, a first circumferential extremity defining surface, and a second circumferential extremity defining surface. A first deflection surface extends from the first circumferential extremity defining surface, and defines a first surface normal that points away from the central axis.

A greasable axle and hub kit assembly and method of installing the greasable axle and hub kit assembly in the frame of a continuous tread machine is provided. The greasable axle and hub kit assembly utilizes at least an inner seal, greased bearing, an anti-spin washer, a fastener, an outer dust cap, an inner seal protector, and an outer seal protection cap to provide for an axle and hub kit assembly with an improved lifetime and a reduced chance of blowouts. The greasable axle and hub kit may further comprise a coupled grease zerk for applying grease to the interior of the hub portion, providing lubrication to the interior components. The greasable axle and hub kit may even further comprise a pilot flange for attaching wheels of varying sizes and materials to the greasable axle and hub kit.