Patent ID: 8808130

Claim:
A gear reduction assembly comprising: an input shaft; a first spur gear; a second spur gear, the first spur gear and the second spur gear being coupled to one another, wherein at least one of the first spur gear and the second spur gear is associated with the input shaft such that the input shaft drives at least one of the first and second spur gears; a first internal gear engaged with the first spur gear; a second internal gear engaged with the second spur gear; and a hub associated with the first internal gear, wherein the first internal gear has a first number of teeth and the second internal gear has a second number of teeth, and the first number of teeth differs from the second number of teeth by from one to five teeth, wherein the first spur gear has a first diameter and the second spur gear has a second diameter, and the second diameter of the second spur gear is greater than the first diameter of the first spur gear, and wherein the first diameter of the first spur gear and the second diameter of the second spur gear are pitch circle diameters of the first spur gear and the second spur gear, respectively.