초록 ▼

A track roller assembly for guiding an endless track includes a central supporting shaft, a roller shell having a through bore, a pair of bushings surrounding the shaft and positioned within the roller through bore, and a pair of split rings which secure the roller shell in a fixed position with res

A track roller assembly for guiding an endless track includes a central supporting shaft, a roller shell having a through bore, a pair of bushings surrounding the shaft and positioned within the roller through bore, and a pair of split rings which secure the roller shell in a fixed position with respect to the bushings and the shaft. A seal assembly at each end of the through bore seals in lubricating fluid and seals out dirt and other harmful matter. The split rings hold the shaft, bushings, and roller shell together and eliminate threaded fasteners which reduce the useful wear life of the roller shells. Resilient load rings in the seal assemblies provide proper loading of the seal assemblies and prevent dirt from eroding the load rings.

대표청구항 ▼

A track roller assembly for guiding the track of a track-type machine, said roller assembly comprising: a central supporting shaft having first and second end portions, a central flange portion, and first and second bushing supporting portions positioned respectively between said central flange port

A track roller assembly for guiding the track of a track-type machine, said roller assembly comprising: a central supporting shaft having first and second end portions, a central flange portion, and first and second bushing supporting portions positioned respectively between said central flange portion and said first and second end portions; first and second bushings positioned on respective first and second bushing supporting portions of said supporting shaft; a roller shell having first and second tread portions and an internal bore, said shaft and said bushings being adapted to fit within said bore, first and second end caps positioned on respective first and second shaft end portions, said end caps substantially closing said internal bore; first and second seal assemblies positioned between respective first and second bushings and said end caps; and first and second split retaining rings adapted to secure said roller shell in a fixed position with respect to said bushings and said shaft.