rack-type gear - significado y definición. Qué es rack-type gear
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Qué (quién) es rack-type gear - definición

MACHINE ELEMENT
Rack-and-pinion steering; Rack and pinion steering; Rack-and-pinion; Rack gear; Gear rack; Steering rack; Rack & pinion; Linear gear
  • Rack railway axle
  • [[Lock gate]] controls on a [[canal]]
  • Pneumatic rack and pinion actuators
  • Rack steering in an automobile

Firearm rack         
RACK FOR STORING FIREARMS
Gun rack; Rifle rack; Arm rack; Pistol rack
A gun rack, rifle rack or arm rack is a rack for storing firearms such as rifles and pistols. The rack is typically equipped with locks to prevent theft or improper use.
Tricycle landing gear         
  • Polish [[3Xtrim 3X55 Trener]] with a fixed tricycle landing gear taxiing.
  • A [[Cessna 150]] taildragger.
AIRCRAFT UNDERCARRIAGE ARRANGED WITH MAIN GEAR UNDER THE WING OR FUSELAGE AND A THIRD SET UNDER THE NOSE
Tricycle undercarriage; Tricycle landing gear/tricycle undercarriage; Tricycle gear; Tricycle type
Tricycle gear is a type of aircraft undercarriage, or landing gear, arranged in a tricycle fashion. The tricycle arrangement has a single nose wheel in the front, and two or more main wheels slightly aft of the center of gravity.
rack-and-pinion         
¦ adjective denoting a mechanism using a fixed cogged or toothed bar or rail engaging with a smaller cog.

Wikipedia

Rack and pinion

A rack and pinion is a type of linear actuator that comprises a circular gear (the pinion) engaging a linear gear (the rack). Together, they convert rotational motion into linear motion. Rotating the pinion causes the rack to be driven in a line. Conversely, moving the rack linearly will cause the pinion to rotate. A rack and pinion drive can use both straight and helical gears. Though some suggest helical gears are quieter in operation, no hard evidence supports this theory. Helical racks, while being more affordable, have proven to increase side torque on the datums, increasing operating temperature leading to premature wear. Straight racks require a lower driving force and offer increased torque and speed per percentage of gear ratio which allows lower operating temperature and lessens viscal friction and energy use. The maximum force that can be transmitted in a rack and pinion mechanism is determined by the tooth pitch and the size of the pinion as well as the gear ratio.

For example, in a rack railway, the rotation of a pinion mounted on a locomotive or a railroad car engages a rack placed between the rails and helps to move the train up a steep gradient.

For every pair of conjugate involute profile, there is a basic rack. This basic rack is the profile of the conjugate gear of infinite pitch radius (i.e. a toothed straight edge).

A generating rack is a rack outline used to indicate tooth details and dimensions for the design of a generating tool, such as a hob or a gear shaper cutter.