Caterpillar Inc.

Amber B Lass

Christopher Ryan Beasley

Joshua Nuechterlein

Fernando Carrillo

An idler key for a track roller assembly is disclosed. The idler key may have a flange portion, and an elongated protrusion extending from the flange portion in a direction generally orthogonal to the flange portion. The idler key may also have at least one shoulder disposed between the flange portion and a base of the elongated protrusion. The at least one shoulder may have at least one machined surface configured to transfer load to a mating component.

Idler key for track roller assembly

A track roller assembly for a track type machine is disclosed. The track roller assembly may have a yoke member with a first arm and a second arm spaced apart from the first arm, and an idler wheel rotatably disposed between the first and second arms of the yoke member. The track roller assembly may also have a frame configured to receive at least a portion of the yoke member, and at least one idler key configured to extend through an opening in the frame and engage a lengthwise slot in at least one of the first and second arms.

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Charlottesville, VA, United States of America

Amber B Lass