Example: Juan de Fuca oceanic plate colliding with the North American Plate created the Cascade Mountain Range in the western U.S. The Andes Mountains are another example. Continental vs. Continental Convergent Boundaries What happens: Two thick continental plates collide. The plates do not subduct. They crumple, fold, fault, and create
Rack and Pinion Gears Information. Rack and pinion gears are used to convert rotation into linear motion. The flat, toothed part is the rack and the gear is the pinion. A piston coaxial to the rack provides hydraulic assistance force, and an open centered rotary valve controls the assist level. A rack and pinion gears system is composed of two gears.
The only possible disadvantage to using helical rack & pinions is that they could require more time to set up and align properly. There are three basic quality levels of pinion gears: Click on Series Numbers for PDF catalog pages. For most rack and pinion applications, a hardened & ground pinion is typically used since it sees the most cycles. The pinion is usually harder than the rack for this reason.