Sheave

Sheave

A wheel having a groove or grooves in its face surface for the passage of cable. This term may be applied collectively to include both sheave and its housing block.

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Part of Speech: noun
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Industry/Domain: Railways
Category: Railroad
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Related terms

sheave

Forest products; Forest engineering & harvesting

Grooved wheel or pulley.

sheave

Boat; Sailboat

Pronounced "shiv". A grooved wheel or pulley with axle, used for example in a block, to prevent line wear and to change direction of the line.

sheave

Agriculture; Animal feed

The grooved wheel of a pulley.

sheaves

Agriculture; Animal feed

Pulleys mounted on the end of the drive and motor shaft over which belts pass to transfer rotational force from the motor to the shaft.

sheave

Oil & gas; Drilling

A pulley. In oilfield usage, the term usually refers to either the pulleys permanently mounted on the top of the rig (the crown blocks), or the pulleys used for running wireline ...

sheave

Oil & gas; Drilling

1. a grooved pulley. 2. support wheel over which tape, wire, or cable rides.

absolute blocking

Railways; Railroad

A control arrangement for rail traffic in which a track is divided into sections or blocks upon which a train may not enter until the preceding train has left.

gotthard base tunnel

Railways; Railroad

Currently the world's longest at 35.4-mile (57-kilometer), the Gotthard Base Tunnel through the Swiss Alps was first conceived in 1947 by engineer Eduard Gruner. The project ...

Gotthard Base Tunnel

Railways; Railroad

Currently the world's longest at 35.4-mile (57-kilometer), the Gotthard Base Tunnel through the Swiss Alps was first conceived in 1947 by engineer Eduard Gruner. The project ...

insulated switch

Railways; Railroad

A switch in which the fixtures, principally the gage plates and the switch rods connecting one rail to the other, are provided with insulation so that electric currents will not ...

turnout number

Railways; Railroad

The number corresponding to the number of frog used in a turnout.

insulating rail joint

Railways; Railroad

Sometimes called Insulated Joint. A rail joint designed to stop the flow of electric current from rail to rail, as at the end of a track circuit, by means of nonconductors so ...

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