Caterpillar Inc.

Daniel E Mathien

Roger Lee Recker

Gennaro Suanno

Brian B Umbach

Connor John Haas

Scott Howard Magner

Dale T Call, Jr

Jordan M Heise

A track roller shaft comprises a body including a revolved surface defining an axis of rotation, a radial direction, and a circumferential direction disposed about the axis of rotation. The body also defines a proximate axial end disposed along the axis of rotation, a radially extending hole that is disposed axially adjacent to the proximate axial end, and a guide member receiving pocket disposed axially farther away from the proximate axial end than the radially extending hole.

Press fit roller collar

A face seal assembly includes a first and a second metallic sealing ring having a common center axis, and each including an outer ring surface and an inner ring surface. A non-metallic sealing element is positioned upon the outer ring surface. The metallic sealing ring also includes a sealing face facing an axially outward direction and extending circumferentially around the center axis in a path that varies from parallelism with a plane normal to the center axis. A stiffness relief groove extends inwardly from the inner ring surface and circumferentially around the center axis and forms an annular spring zone of reduced material thickness to compensate for the varying of the path of the sealing face. One machine system application includes a final drive in a ground-engaging machine.

Face seal assembly for machine system having metallic sealing ring with stiffness relief groove to compensate for out-of-plane sealing face

Growing community of inventors

Peoria, IL, United States of America

Daniel E Mathien