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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.
The technical sets featured moving parts such as gears, differentials, cogs, levers, axles, and universal joints and permitted the construction of realistic models such as automobiles, with functional rack and pinion steering and lifelike engine movements. In 1978 the Lego "mini-figure" was added.
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. A rotating wheel moves a cable, rack, chain or belt to produce linear motion. [1] Cam: Cam actuators function on a principle similar to that of the wedge, but provide relatively limited ...
Lego Technic / ˈ t ɛ k n ɪ k / (stylized as LEGO Technic) is a line of Lego interconnecting plastic rods and parts. The purpose of this series is to create advanced models of working vehicles and machines, compared to the simpler brick -building properties of normal Lego.
The remaining length of a given pinion meshes with the nearer spur gear on its axle. Each pinion connects the associated spur gear to the other spur gear (via the other pinion). As the carrier is rotated (by the input torque), the relationship between the speeds of the input (i.e. the carrier) and that of the output shafts is the same as other ...
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.