Track roller having resilient mounted treads and threaded-on retainers

摘要

A track roller assembly for use in crawler-type tractors including a shaft adapted to be secured to the track frame of the tractor and a hub journalled on the shaft. The hub has opposite ends externally threaded for receipt of internally threaded retaining caps. The caps engage and locate guide flanges on the hub and, in addition, include inwardly directed surfaces directed toward oppositely facing annular shoulders on the shaft. Thrust bearings are received between the shoulders and the surfaces and radially inner and outer annular seals are disposed about the surfaces to sealingly engage the shaft and the hub respectively.