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In many cases, such as remote controlled toys, the pinion is also the drive gear for a reduction in speed, since electric motors operate at higher speed and lower torque than desirable at the wheels. However the reverse is true in watches, where gear trains commence with a high-torque, low-speed spring and terminate in the fast-and-weak escapement.
The word "yoke" is believed to derive from Proto-Indo-European *yugóm (yoke), from root *yewg- (join, unite), and is thus cognate with yoga. [1] [2] This root has descendants in almost all known Indo-European languages including German Joch, Latin iugum, Ancient Greek ζυγόν (zygon), Persian یوغ (yuğ), Sanskrit युग (yugá), Hittite 𒄿𒌑𒃷 (iúkan), Old Church Slavonic ...
The 15th century also saw the introduction of cranked rack-and-pinion devices, called cranequins, which were fitted to the crossbow's stock as a means of exerting even more force while spanning the missile weapon (see right). [48] In the textile industry, cranked reels for winding skeins of yarn were introduced. [41]
Wheel and axle: Hoist, winch, rack and pinion, chain drive, belt drive, rigid chain and rigid belt actuators operate on the principle of the wheel and axle. By rotating a wheel/axle (e.g. drum, gear, pulley or shaft) a linear member (e.g. cable, rack, chain or belt) moves. By moving the linear member, the wheel/axle rotates.
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.
Pinion shaft diameter: 1.625" Pinion shaft splines: 10 or 29; Gear ratios: 3.54:1 - 7.17:1 1st Generation Dodge Cummins trucks with non-OD transmissions are equipped with 3.07:1 "Dana 61" front axles with unique differential housings and carriers with extra clearance for the very large pinion gear.