These are some SolidWorks components and parts that I designed for practice.
Gear Box Design: A worm gear reducer is a right-angle speed reducer that allows maximum speed reduction in the smallest package. The design depicts the functionality of a real-life component.
I used keys for torque transfer and retaining rings for axial component retention. The gearbox housing is made of plate aluminum and is assembled with countersunk machine screws.
Exploded View of Worm Gear Reducer.