What is the difference between radial and pantograph wiper systems?
A. Radial wiper systems are typical to most automotive applications. They use a single arm that sweeps the blade in an arc pattern. Pantograph wiper systems have a double arm. One arm is a drive arm that attaches to the pivot shaft; the other is an idler arm that pivots off of a post called a pantograph adapter and keeps the blade parallel to the side edge of the glass (or the center mall, in a split windshield).
