The ev-Torque Box is based on a simple yet brute strength compound

planetary gear set. All ev units employ helical cut 8620 gears that have

been specially hardened. There is no heat producing pump, no heat

producing friction clutch packs or brake bands in our design. An input

shaft, a gear set and an output shaft, with everything rollerized – not

bushed, its that simple, that strong and runs that cool.

All ev-Torque Box units are run in and torque tested and then the test oil is

drained. This is done because none of the freight delivery companies will

delivery our product with oil in it. 


Our input shaft splines into the reaction sun gear located in the rear of the

planetary carrier so they always turn together and at the same speed. The

sun gear is in constant mesh with the long pinion gears and they in turn

are in constant mesh with and so drive the short pinion gears. The short

pinion gears are in constant mesh with the stationary gear and because it

is stationary they must rotate around its diameter and in so doing drive the

carrier and integral output shaft.