Split drive sprocket assembly

A method of driving a belt, the method comprising:

• joining a first sprocket portion and a second sprocket portion along an opposing mating surface to form a sprocket body, wherein a series of teeth extending radially from a circumferential end of the first sprocket portion and the second sprocket portion, wherein a first shoulder is connected to the first sprocket portion and extends radially so as to extend from an axial further than the teeth extends from the axial and spaced axially apart from the teeth, and wherein a second shoulder (1) is separate from the first shoulder portion so that the first and second shoulders can be attached and detached from each other, (2) is connected to the second sprocket portion and (3) extends radially so as to extend from the axial further than the teeth extends from the axial and spaced axially apart from the teeth;
• engaging the teeth of the first sprocket portion and the second sprocket portion with a belt such that while the teeth are engaged with the belt, the first and second shoulder are configured to overlap with the belt;
• and
• rotating the sprocket body so that the teeth apply rotational torque on the belt to move the belt while the belt overlaps with the first and second shoulders.