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# Coupling

A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. [1]

## Angular displacement

Angular displacement of a body is the angle in radians (degrees, revolutions) through which a point revolves around a centre or line has been rotated in a specified sense about a specified axis.

## Backlash (engineering)

In mechanical engineering, backlash, sometimes called lash or play, is a clearance or lost motion in a mechanism caused by gaps between the parts.

## Bore (engine)

The bore or cylinder bore is a part of a piston engine.

## Constant-velocity joint

Constant-velocity joints (also known as homokinetic or CV joints) allow a drive shaft to transmit power through a variable angle, at constant rotational speed, without an appreciable increase in friction or play.

## Coupling

A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power.

## Cross section (geometry)

In geometry and science, a cross section is the non-empty intersection of a solid body in three-dimensional space with a plane, or the analog in higher-dimensional spaces.

## Drivetrain

The drivetrain of a motor vehicle is the group of components that deliver power to the driving wheels.

## Fluid coupling

A fluid coupling or hydraulic coupling is a hydrodynamic device used to transmit rotating mechanical power.

## Gear

A gear or cogwheel is a rotating machine part having cut like teeth, or cogs, which mesh with another toothed part to transmit torque.

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## Gear train

A gear train is a mechanical system formed by mounting gears on a frame so the teeth of the gears engage.

## Geislinger coupling

The Geislinger coupling is an all-metal coupling for rotating shafts.

## Giubo

A giubo (etymology: giunto Boschi, "Boschi Joint"), also known as a flex disc, and sometimes misspelled as guibo, is a flexible coupling used to transmit rotational torque between the drive shaft and the companion flange on mechanical devices, such as an automobile engine.

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## Ireland

Ireland (Éire; Ulster-Scots: Airlann) is an island in the North Atlantic.

## Jaw coupling

A jaw coupling is a type of general purpose power transmission coupling that also can be used in motion control (servo) applications.

## John Oldham (engineer)

John Oldham (1779–1840) was an Irish engineer, now best known for the Oldham coupler.

## Key (engineering)

In mechanical engineering, a key is a machine element used to connect a rotating machine element to a shaft.

## Line (geometry)

The notion of line or straight line was introduced by ancient mathematicians to represent straight objects (i.e., having no curvature) with negligible width and depth.

## Maraging steel

Maraging steels (a portmanteau of "martensitic" and "aging") are steels (iron alloys) that are known for possessing superior strength and toughness without losing malleability, although they cannot hold a good cutting edge.

A paddle steamer is a steamship or riverboat powered by a steam engine that drives paddle wheels to propel the craft through the water.

## Pipe (fluid conveyance)

A pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow &mdash; liquids and gases (fluids), slurries, powders and masses of small solids.

## Polyoxymethylene

Polyoxymethylene (POM), also known as acetal, polyacetal, and polyformaldehyde, is an engineering thermoplastic used in precision parts requiring high stiffness, low friction, and excellent dimensional stability.

## Robotics

Robotics is an interdisciplinary branch of engineering and science that includes mechanical engineering, electronics engineering, computer science, and others.

## Rotary encoder

A rotary encoder, also called a shaft encoder, is an electro-mechanical device that converts the angular position or motion of a shaft or axle to analog or digital output signals.

## Schmidt coupling

A Schmidt coupling is a type of coupling designed to accommodate large radial displacement between two shafts.

## Sleeve coupling

A Sleeve coupling is a basic type of coupling.

## Spline (mechanical)

Splines are ridges or teeth on a drive shaft that mesh with grooves in a mating piece and transfer torque to it, maintaining the angular correspondence between them.

## Spring (device)

A spring is an elastic object that stores mechanical energy.

## Steering

Steering is the collection of components, linkages, etc.

## Thrust

Thrust is a reaction force described quantitatively by Newton's third law.

## Titanium

Titanium is a chemical element with symbol Ti and atomic number 22.

## Tongue and groove

Tongue and groove is a method of fitting similar objects together, edge to edge, used mainly with wood, in flooring, parquetry, panelling, and similar constructions.

## Torque

Torque, moment, or moment of force is rotational force.

## Torque density

Torque density is a measure of the torque-carrying capability of a mechanical component.

## Torque limiter

A torque limiter is an automatic device that protects mechanical equipment, or its work, from damage by mechanical overload.

## Universal joint

A universal joint (universal coupling, U-joint, Cardan joint, Spicer or Hardy Spicer joint, or Hooke's joint) is a joint or coupling connecting rigid rods whose axes are inclined to each other, and is commonly used in shafts that transmit rotary motion.

## Vibration

Vibration is a mechanical phenomenon whereby oscillations occur about an equilibrium point.

## Windsurfing

Windsurfing is a surface water sport that combines elements of surfing and sailing.

## Yutaka Nishiyama

is a Japanese mathematician and professor at the Osaka University of Economics, where he teaches mathematics and information.

## References

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