Abstract: A planetary gear assembly which includes an axle housing for rotatably carrying an axle shaft with a sun gear at its outer end, a spindle gear removably mounted to the axle housing, and a hub rotatably mounted to the spindle gear, the axle housing, spindle gear and hub having axial bores permitting the passage therethrough of an axle shaft. The spindle gear has a recessed interior with an inner surface provided with integrally formed gear teeth, and the hub includes a plurality of planet gears which are disposed between the sun gear of the axle shaft and the ring gear of the spindle gear. The spindle gear and hub are so constructed and arranged as to permit the axle shaft and sun gear to be withdrawn outwardly through the hub, and to permit the hub and spindle gear assembly to be removed from the axle housing as a unit.

Abstract: A planetary gear steering hub assembly which can be easily assembled and disassembled. The assembly includes a stationary axle housing, a universally jointed axle shaft extending through the housing, and a hollow spindle having an inner end with integrally formed knuckles pivotally coupling it to the axle housing and having adjacent its outer end an integrally formed toothed ring surrounding but spaced from the sun gear. A hub is rotatably mounted to and carried coaxially of the spindle, the hub carrying a plurality of rotatable planet gears disposed between the sun gear and the toothed ring and meshing therewith.