Caterpillar Inc.

Daniel J Reed

Keith A Kabrick

Timothy F Nusz

Christopher P Braet

John Zeirke

Rick T Lasko

Brandon D Mann

Vanyo N Kirov

Timothy S Stoakes

Trent Thum

Brian C Boguski

A final drive assembly for a machine includes an input shaft drivably coupled to a prime mover. The input shaft is coupled to and drives a first stage gear assembly. The first stage gear assembly further drives a second stage gear assembly. The first and second stage gear assemblies drive a ring gear which is coupled to a wheel of the machine. The first and second stage gear assemblies are disposed between a first bearing assembly and a second bearing assembly. A spring member preloads the first bearing assembly to limit an axial movement of the first and second stage gear assemblies.

Drive assembly for machine

A gear train assembly includes a first reduction planetary gear set having a rotating carrier and a second reduction planetary gear set having a non-rotating carrier. A plurality of vanes are attached to the carrier to direct oil from an oil bath towards the non-rotating carrier as the rotating carrier rotates.

Apparatus and method for lubricating a gear

A gear train assembly includes a planetary gear set partially submerged in an oil bath and having a plurality of planetary gears mounted on a rotatable carrier. A plurality of sheaths having a hydrodynamic profile are mounted on the carrier to reduce the churning and turbulence created by the planetary gears as they enter the oil bath.

Sheath assembly for a planetary gear

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Brimfield, IL, United States of America

Daniel J Reed