Quote:
Originally Posted by mkoesel
lucid, check it out:
http://auto.howstuffworks.com/steering2.htm
"Some cars have variable-ratio steering, which uses a rack-and-pinion gearset that has a different tooth pitch (number of teeth per inch) in the center than it has on the outside. This makes the car respond quickly when starting a turn (the rack is near the center), and also reduces effort near the wheel's turning limits. "
It actually sounds pretty simple, yeah?
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Well, this actually doesn't add up in my mind. I can see how the rack can have different pitch in different places, but I don't see how a pinion with uniform pitch will mesh with that rack without getting chewed up unless you let go off your tolerances and then you've got a sloppy transmission.