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US 11,572,114 B2Granted
Track assembly bushing having a wear member
AssigneeCaterpillar Inc.
InventorsDouglas Trent Weaver, Mark D. Veliz, Roger L. Recker
Life of this patent
Estimating the term…
Abstract
A bushing for a track assembly includes a tubular bushing substrate having a longitudinal length and an outer surface. The outer surface includes at least one flat portion. The bushing also includes at least one white iron member. The at least one white iron member includes a flat inner surface, and the flat inner surface of the at least one white iron member is fixed to the flat portion of the outer surface of the tubular bushing substrate.
Claims19
A bushing for a track assembly, comprising:
- a tubular bushing substrate having a longitudinal length and an outer surface, wherein the outer surface includes at least two flat portions spaced apart from each other;
- and
- at least two white iron members, wherein the at least two white iron members each include a flat inner surface, and wherein the flat inner surface of each of the at least two white iron members is fixed to a respective flat portion of the outer surface of the tubular bushing substrate, and wherein the at least two white iron members are spaced apart circumferentially around the tubular bushing substrate.
A method of producing a bushing for a track assembly, comprising:
- fixing at least one white iron member to an outer surface of a tubular bushing substrate, wherein the at least one white iron member includes a flat inner portion, wherein the tubular bushing substrate includes a flat outer portion, and wherein the flat inner portion is mated to the flat outer portion,
- wherein the fixing is performed using a holding fixture having a holding surface, and
- wherein the fixing includes placing the holding surface of the holding fixture on the at least one white iron member, so that the at least one white iron member is held in place while being fixed to the tubular bushing substrate.
A track assembly bushing, comprising:
- a tubular bushing substrate having a longitudinal length, an axial bore configured to receive a pin, and a central portion with a plurality of flat surfaces;
- and
- a plurality of wear members, wherein each of the plurality of wear members includes a flat inner surface, and wherein each of the plurality of wear members is fixed to one of the plurality of flat surfaces,
- wherein the plurality of wear members form gaps between circumferentially adjacent wear members.
1 more element
Dependencies are inferred from the claim text.