Abstract: A lug is configured to be attached to a projection of a sprocket using a retaining mechanism, the lug comprising an enclosure including a bottom surface defining an aperture configured to receive the projection, and a side surface defining an aperture configured to receive a retaining mechanism.

Abstract: A track chain member comprises a shoe member defining a track chain traveling direction and a lateral direction perpendicular to the track chain traveling direction and a first rib defining a first concave radial portion.

Abstract: A track chain member comprises a shoe member, and a first rail member extending from the shoe member, wherein the first rail member defines a track chain traveling direction and a lateral direction generally perpendicular to track chain traveling direction, a first support surface extending generally in both the track chain traveling direction and the lateral direction defining an outer lateral extremity, and a first crest shaped member disposed laterally adjacent the outer lateral extremity of the first support surface.

Abstract: A track chain member comprising a shoe member defining a track chain traveling direction and a lateral direction, the shoe member further defining a first lateral end, a second lateral end, and a ground engaging surface spanning from the one end to the other end; wherein the shoe member further defines a first side void proximate the first lateral end, a second side void proximate the second lateral end, and the first side void terminates a first predetermined distance from the first lateral end and the second side void terminates a second predetermined distance from the second lateral end.

Abstract: A track chain assembly comprises a plurality of interlocking track chain members wherein each track chain member defines a track chain traveling direction, a lateral direction perpendicular to the track chain traveling direction, and includes a shoe member defining a shoe width along the lateral direction; and a first track pad member defining a first track pad maximum width along the lateral direction, and a second track pad member defining a second maximum track pad width along the lateral direction, wherein a ratio of either track pad maximum widths to the shoe member width ranges from 1:4 to 3:4.

Abstract: A track support rail for slidably supporting a track assembly of a machine includes a body having a first body end, a second body end, a crown portion, and an upper support surface. The body extends along a longitudinal axis between the first and second body ends. The crown portion is disposed between the first and second body ends along the longitudinal axis. The upper support surface extends along the longitudinal axis between the first and second body ends. The upper support surface includes first and second curved segments. The first curved segment has a first curved shape and extends from the first body end toward the crown portion of the body. The second curved segment has a second curved shape and extends from the second body end toward the crown portion of the body. The first curved shape is different from the second curved shape.

Abstract: An undercarriage assembly for a mobile machine includes a continuous track having a plurality of mated track links that can translate with respect to the machine. Each track link may include a shoe portion and a body portion. The body portion includes a plurality of projecting pin lugs each having a pin bore to receive a bin and link adjacent track links together. The pin lugs can include a pair of sprocket lugs for making rolling contact with a sprocket, a pair of roller lugs for making rolling contact with a plurality of rollers, and a side lug having a protruding shoulder to assist in aligning the plurality of rollers.

Abstract: An undercarriage assembly for a mobile machine includes a continuous track having a plurality of mated track links that can translate with respect to the machine. Each track link may include a shoe portion and a body portion. The body portion includes a plurality of projecting pin lugs each having a pin bore to receive a bin and link adjacent track links together. The pin lugs can include a pair of sprocket lugs for making rolling contact with a sprocket, a pair of roller lugs for making rolling contact with a plurality of rollers, and a side lug having a protruding shoulder to assist in aligning the plurality of rollers.

Abstract: 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.

Abstract: A track pad is disclosed for use for a track type mobile machine having a sprocket and an idler wheel. The track pad may have a first link with a rail surface configured to engage the sprocket and the idler wheel, and a second link oriented generally parallel with the first link and having a rail surface configured to engage the sprocket and the idler wheel. The track pad may also have a shoe connected to the first and second links at a side opposite the rail surfaces, and a wear indicator formed within the rail surface of at least one of the first and second links.

Abstract: A track pad of an articulating track system for a machine is disclosed. The track pad includes a ground engaging portion and a body portion. The ground engaging portion includes a ground engaging surface that engages the ground during operation of the machine. The body portion extends from the ground engaging portion in a direction opposite the ground engaging surface. The body portion includes a roller engaging surface distal to the ground engaging surface. The roller engaging surface is a convex surface that matches the curvature of a roller surface for a roller of the machine.

Abstract: A track link connector is disclosed herein that includes an elongate, substantially cylindrical body having a length dimension and including a substantially annular exterior surface and first and second opposing end portions. The track link connector further includes a textured region extending less than 360 degrees around a circumference of the exterior surface of the body at one of the end portions thereof.

Abstract: A track pad is disclosed for use for a track type mobile machine having a sprocket and an idler wheel. The track pad may have a first link with a rail surface configured to engage the sprocket and the idler wheel, and a second link oriented generally parallel with the first link and having a rail surface configured to engage the sprocket and the idler wheel. The track pad may also have a shoe connected to the first and second links at a side opposite the rail surfaces, and a wear indicator formed within the rail surface of at least one of the first and second links.

Abstract: A track pad of an articulating track system for a machine is disclosed. The track pad includes a ground engaging portion and a body portion. The ground engaging portion includes a ground engaging surface that engages the ground during operation of the machine. The body portion extends from the ground engaging portion in a direction opposite the ground engaging surface. The body portion includes a roller engaging surface distal to the ground engaging surface. The roller engaging surface is a convex surface that matches the curvature of a roller surface for a roller of the machine.

Abstract: A track link connector is disclosed herein that includes an elongate, substantially cylindrical body having a length dimension and including a substantially annular exterior surface and first and second opposing end portions. The track link connector further includes a textured region extending less than 360 degrees around a circumference of the exterior surface of the body at one of the end portions thereof.

Abstract: A lobed bushing is provided for a track assembly of a track-type machine. The track assembly includes a first chain and a second chain coupled together with a track pin. A bushing, defining a longitudinal axis, includes a central bore oriented along the longitudinal axis and extending from a first end of the bushing to a second end of the bushing for receiving the track pin. The bushing includes a first lobe positioned at a first location about the longitudinal axis and a second lobe positioned at a second location about the longitudinal axis that is less than about 180° from the first location. The first end of the bushing has a substantially cylindrical shape.

Abstract: A track undercarriage link includes a bore for accommodating a pin. The bore may include an annular recess for accommodating part of a retaining ring. The pin may include a peripheral recess for accommodating part of the retaining ring as well. The retaining ring may include a strip that includes a first end and a second end. The strip may form at least one concentric ring with a gap disposed between the two ends. The gap may form a transition section that include a first section disposed adjacent the first end of the strip and a second section disposed adjacent the send end of the strip. A ramp may be disposed between the first and second sections. The ramp and the sections may enable a flathead screwdriver or other blunt object to be slid underneath the first or second end of the strip to facilitate removal of the retaining ring from the pin and therefore removal of the pin from the bore of the track undercarriage link.

Abstract: A lobed bushing is provided for a track assembly of a track-type machine. The track assembly includes a first chain and a second chain coupled together with a track pin. A bushing, defining a longitudinal axis, includes a central bore oriented along the longitudinal axis and extending from a first end of the bushing to a second end of the bushing for receiving the track pin. The bushing includes a first lobe positioned at a first location about the longitudinal axis and a second lobe positioned at a second location about the longitudinal axis that is less than about 180° from the first location. The first end of the bushing has a substantially cylindrical shape.