Manual steering gears predate the Model T era. The typical layout is a column and shaft leading from the steering wheel to a frame-mounted gear mechanism. This steering shaft rotates left and right, ...

However, not all innovations are equal and nor do they follow a constant upward trend. Instead, their evolution takes the form of an S-shaped curve that reflects their typical lifecycle from early ...

Worm gears are a power transmission standard, driving millions of axes requiring more drastic speed reductions. In this type of gearing a longer, more cylindrical worm (which resembles a screw) ...