This improves the surface finish of parts made on machines that use a helical rack-and-pinion to move the cutting tools. Modern machining also lets gearmakers adjust the pinion gear’s profile.

But while these systems rely on different sources of power, they often function using similar gears and components, including ...

Helical rack and pinion drives, which have teeth at a slight ... For systems requiring zero backlash, drive gears must be mechanically or electrically preloaded. Achieving precision, in general ...

using modern-day steering gears. Most of these old cars use very long control arms that narrow the suspension's pivot points and require a very narrowed rack-and-pinion. Some people think that it ...