Rack and pinion Gear

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a rack toothed bar or rod can thought of sector gear infinitely large radius of curvature. torque can converted linear force meshing rack pinion: pinion turns; rack moves in straight line. such mechanism used in automobiles convert rotation of steering wheel left-to-right motion of tie rod(s). racks feature in theory of gear geometry, where, instance, tooth shape of interchangeable set of gears may specified rack, (infinite radius), , tooth shapes gears of particular actual radii derived that. rack , pinion gear type employed in rack railway.








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