An endless track assembly wherein the weight of an associated vehicle/equipment
is supported by the track framework. The track assembly provides a framework having
a number of idler rollers and a drive sprocket that mounts to a rotational drive
power source. The weight of the vehicle is transferred from a vehicle/equipment
support flange that cooperates with a complementary support surface of the track
framework and an intermediate bearing liner. The bearing support surfaces cooperate
to permit the track frame to pivot relative to the chassis independent of the drive
sprocket. The track assembly is particularly adapted to pivoting irrigation systems.
