Caterpillar Inc.

Chandrasen Rameshlal Rathod

Roger Lee Recker

Scott E Keele

Thomas J Yaniak

Robert Jason Pickerill

Eric James Johannsen

Douglas Trent Weaver

Daniel Joseph Sordelet

Jason L Sebright

Matthew Thomas Kiser

Susan Marie Graham

Louis F Vachon

Arthur James Bland

Douglas Edgar Wilson

Chad Wayne Burman

Michael Brian Bour

John Timothy Feeney

Tao Lin

Chris Richerson

A method of producing a rotating guide component for a track assembly includes fixing at least one wear member to an outer surface of a tubular or annular substrate. The at least one wear member includes an inner portion, and the tubular or annular substrate includes an outer portion. The inner portion is mated to the outer portion, and the wear member is brazed to the tubular or annular substrate.

Rotating track guide components with white-iron segments

A track shoe includes a base plate, a grouser extending from the base plate, and at least one white iron member. At least a portion of the grouser includes a substantially martensitic structure. The at least one white iron member is fixed to a portion of the grouser.

Track shoe or track pad having a wear member

An example bushing has three portions along its radial direction including an inner portion most proximal to a central hole of the bushing, an outer portion most distal from the center hole, and a core portion between the inner portion and the outer portion. The core portion has a hardness that is less than the hardness of the inner portion or the outer portion of the bushing. The bushing may be formed using high carbon steel, which in some cases may be spheroidal cementite crystal structure. A rough bushing may be formed using the high carbon steel, followed by a direct hardening process, and an induction hardening process on the inner surface most proximal to the central hole of the bushing. The induction hardening on the inner surface may harden the outer portion while tempering the core portion of the bushing.

High carbon steel track bushing

A steel track chain component, such as a track bushing, may be formed with a carburized portion, a hardface portion, and a core portion. The core portion may be softer than the carburized portion, which in turn, may be softer than the hardface portion. This configuration of the various portions of the component may allow for relatively high wear resistance of the component, as well as toughness. The core portion may be mostly ferrite crystal structure, while the carburized portion and the hardface portions may include martensitic and/or austenitic crystal structure. The carburized portion may be formed by carburizing the track chain component in a heated and carbon rich environment. The hardface portion may be formed by welding a hardface alloy over at least a portion of the carburized portion.

Track chain components with hardface overlay

A bushing for a track assembly, according to one or more embodiments, includes: a tubular bushing substrate having a longitudinal length and an outer surface; and at least one white iron member fixed to the outer surface of the tubular bushing substrate.

Track assembly bushing having while iron member

A bushing assembly for a track assembly includes a first end element, a second end element, and a central element positioned between the first end element and the second end element. The central element may be interference fit or positioned between the first end element and the second end element, and the central element may include a greater hardness than the first and second end elements. The first end element, the second end element, and the central element form a bushing with a longitudinal opening extending longitudinally through the bushing.

Bushing for a track assembly

A method for manufacturing a machine component includes forming a non-linear break notch in a workpiece, freezing the workpiece, and snapping the frozen workpiece apart along the non-linear break notch.

Method for non-linear fracture splitting

A method for production of a track bushing for an undercarriage assembly is provided. The method includes carburizing a base material of the track bushing in less than 100 minutes and to a depth of less than 1000 microns. The base material is medium carbon steel. The method includes hardening the base material. The method includes tempering the base material.

Track bushing

An exhaust system associated with a power source is disclosed. The exhaust system may have an exhaust stack extending from the power source to an exterior of the exhaust system and a moisture collection device disposed within the exhaust stack to collect moisture from the exhaust stack. The exhaust system may also have a moisture entrainment device associated with the moisture collection device to facilitate entrainment of the collected moisture into an exhaust flow of the power source.

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Peoria, IL, United States of America

Chandrasen Rameshlal Rathod