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The most common components of a roof rack system are towers, fitting pieces (for attaching towers to a specific vehicle), crossbars, and gear mounts. Automobile roof racks are split into different types, depending on the vehicle roof: Rain Gutter - older roof racks were usually mounted directly to the gutter surrounding the roof line.
A rack and pinion has roughly the same purpose as a worm gear with a rack replacing the gear, in that both convert torque to linear force. However the rack and pinion generally provides higher linear speed — since a full turn of the pinion displaces the rack by an amount equal to the pinion's pitch circle whereas a full rotation of the worm screw only displaces the rack by one tooth width.
In some systems, it provides attachment to the hub; Pannier: cloth zippered storage bags that mount to sides of luggage racks. Pronounced pan-ear, or pan-yer (an old English word, which is derived from an old French word) Pedal: mechanical interface between foot and crank arm. There are two general types; one secures the foot with a mechanical ...
Open Rack is a mounting system designed by Facebook's Open Compute Project that has the same outside dimensions as typical 19-inch racks (e.g. 600 mm width), but supports wider equipment modules of 547 millimetres (21.5 in).
The PV array consist of solar modules held in place by racks or frames that are attached to ground-based mounting supports. [11] [12] In general, ground mounted PV systems can be at the optimal tilt angle and orientation (as compared to roof mounted systems that can be non-optimal particularly for retrofits). Ground-based mounting supports include:
EIA/ECA-310 Cabinets, Racks, Panels, and Associated Equipment, maintained by the ECIA (includes 19-inch racks, rack units) [2] EIA/TIA-329-B Minimum Standards for Communication Antennas Part I - Base Station Antennas; EIA/TIA-329-B-1 Minimum Standards for Communication Antennas Part II - Vehicular Antennas; EIA-343 Formerly RS-343. Signal ...