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rack and pinion
(redirected from Rack rail)

   Also found in: Dictionary/thesaurus, Wikipedia 0.02 sec.

rack and pinion

Mechanical device consisting of a bar of rectangular cross section (the rack), having teeth on one side that mesh with teeth on a small gear (the pinion). If the pinion rotates about a fixed axis, the rack will move in a straight path. Some automobile steering mechanisms have rack-and-pinion drives that use this principle. If the rack is fixed and the pinion is carried in bearings on a table guided on tracks parallel to the rack, rotation of the pinion shaft will move the table parallel to the rack. On machine tools, this principle is used to obtain rapid movements of worktables.


rack and pinion [′rak ən ′pinĀ·yən]
(mechanical engineering)
A gear arrangement consisting of a toothed bar that meshes with a pinion.


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Among its other practical features is a vented door and side panels to allow airflow exceeding server manufacturer requirements; an optional caster kit that allows the unit to turn into a mobile, space-saving floor-unit; adjustable rack rails with square mounting holes; and convenient cut-outs for cable routing.
Among its other practical features is a vented door and side panels to allow airflow exceeding server manufacturer requirements; an optional caster kit that allows the unit to turn into a mobile, space-saving floor-unit; adjustable rack rails with square mounting holes; and convenient cut-outs for cable routing.
Minneapolis-based Winsted Corporation is offering an array of new accessories for its Pro Series II vertical rack cabinets, which feature adjustable tapped front and rear rack rails and gusseted horizontal supports for additional strength.
 
 
 
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