Patent ID: 11919584
Assignee: CATERPILLAR INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 5:
6. A track roller joint assembly comprising:
a track roller including a
a body of revolution defining an axis of rotation, a circumferential direction disposed about the axis of rotation, a radial direction extending normal to the axis of rotation, a first axial extremity disposed along the axis of rotation, and a second axial extremity disposed along the axis of rotation, the body of revolution further including a first track roller member and a second track roller member,
the first track roller member including:
a first rim portion disposed proximate to the first axial extremity; and
an outboard track contact surface disposed axially proximate to the first rim portion;

the second track roller member including:
a proximate axial end disposed along the axis of rotation and a distal axial end disposed along the axis of rotation; and
a second rim portion disposed proximate to the second axial extremity;
a half-tread portion including a first track interface region including an interface surface that is disposed proximate to the distal axial end and extending axially, that is configured to contact less than the full axial-direction width of an inboard portion of a track link and to bear a force, from the track link, that is primarily directed radially inwardly, and defining a first aperture disposed axially between the first track interface region and the proximate axial end, wherein the force creates a contact pressure;

and the body of revolution further defining
an exterior;
a thru-hole that is in communication with the exterior and extending axially through the body of revolution;
an inboard slot disposed axially proximate to the second rim portion;
a shaft disposed in the thru-hole; and

a radial bearing disposed in the thru-hole and contacting the shaft.