Reduction drive

Reduction Drive

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Reduction drive

A reduction drive is a mechanical device to shift rotational speed. A planetary reduction drive is a small-scale version using ball bearing

Ball bearing

A ball bearing is an engineering term referring to a type of rolling-element bearing which uses balls to maintain the separation between the moving parts of the bearing....
s in an epicyclic

Epicyclic gearing

Epicyclic gearing or planetary gearing is a gear system that consists of one or more outer gears, or planet gears, revolving about a central, or sun gear....
arrangement instead of toothed gear

Gear

A gear is a component within a Transmission device that transmits rotational force to another gear or device. A gear is different from a pulley in that a gear is a round wheel that has linkages that mesh with other gear teeth, allowing force to be fully transferred without slippage....
s.

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Encyclopedia

A reduction drive is a mechanical device to shift rotational speed. A planetary reduction drive is a small-scale version using ball bearing

Ball bearing

A ball bearing is an engineering term referring to a type of rolling-element bearing which uses balls to maintain the separation between the moving parts of the bearing....
s in an epicyclic

Epicyclic gearing

Gear

Reduction drives are used in engine

Engine

An engine is a mechanical device that produces some form of output from a given input.An engine whose purpose is to produce kinetic energy output from a fuel is called a Wiktionary:prime mover; alternatively, a motor is a device which produces kinetic energy from a preprocessed "fuel" ....
s of all kinds, to increase the amount of torque

Torque

Torque is the tendency of a force to rotate an object about an axis . Just as a force is a push or a pull, a torque can be thought of as a twist....
per revolution of a shaft: the gearbox of any car

Automobile

An automobile or motor car is a wheeled motor vehicle for transportation passengers, which also carries its own car engine or motor. Most definitions of the term specify that automobiles are designed to run primarily on roads, to have seating for one to eight people, to typically have four wheels, and to be constructed principally f...
is a ubiquitous example of a reduction drive.

Planetary reduction drives are typically attached between the shaft of the variable capacitor

Variable capacitor

A variable capacitor is a capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically. Variable capacitors are often used in RLC circuit to set the resonance frequency, e.g....
and the tuning knob of any radio

Radio

Radio is the transmission of signals, by modulation of electromagnetic radiation with frequency below those of visible light.Electromagnetic radiation radio propagation by means of oscillating electromagnetic fields that pass through the air and the vacuum of space....
, to allow fine adjustments of the tuning capacitor with large movements of the knob.