Rigging Knowledge Wire Rope

Front 1

Abrasion

Back 1

Surface wear on the wires of a wire rope caused by friction

Front 2

Bending stress

Back 2

Stress imposed on wires of a wire rope by bending. It is constant for a fixed ratio of bending diameter to rope diameter for a given construction of rope.

Front 3

Cable

Back 3

A term loosely applied to wire ropes, wire strands, Manila ropes and electrical conductors.

Front 4

Chafing gear

Back 4

Any material ( ie, canvas, rubber, fire hose, wood, etc.) Used to protect the rigging gear, and the object being handled.

Front 5

Clip

Back 5

Fitting for clamping two parts of wire rope.

Front 6

Closed socket

Back 6

Wire rope end fitting consisting of basket and Bale made integral

Front 7

Core

Back 7

Core member of a wire rope about which the strands are laid. It may be fiber, a wire strand or an independent wire rope.

Front 8

Corrosion

Back 8

Decomposition of metal caused by contact with acids, alkalis, submergence in water, or other destructive agents.

Front 9

Extra flexible wire rope

Back 9

Terms used in describing either 8x19 or 6x37 constructions of wire rope.

Front 10

Eye or eye splice

Back 10

A loop with or without a thimble formed in the end of a wire rope.

Front 11

Fiege Fitting

Back 11

A fitting consisting of three parts, sleeve, plug, and socket generally used on stays or guys and safety hand lines.

Front 12

Filler Wire

Back 12

Small auxiliary wires in a strand for spacing and positioning other wires.

Front 13

Fitting

Back 13

Any accessory used as an attachment for wire rope.

Front 14

Flexible wire rope

Back 14

Term used in describing 6x19 constructions of wire rope.

Front 15

Grommet

Back 15

An endless wire rope made from one continuous length of wire rope connected by swaged fittings

Front 16

Hawser

Back 16

Wire rope, usually galvanized or fiber and synthetic, used for towing or mooring vessels.

Front 17

Independent wire rope core

Back 17

Wire rope used as a core of a larger rope.

Front 18

IWRC

Back 18

Independent wire rope core

Front 19

Inner wires

Back 19

All wires of a strand except surface or cover wires.

Front 20

Kink

Back 20

Sharp bend in a wire rope that permanently distorts the wires and strands.

Front 21

Lang lay rope

Back 21

Wire rope in which the wires in the strands and the strands in the rope are laid in the same direction.

Front 22

Lashing

Back 22

Wire rope, synthetic rope, synthetic webbing, or other approved material. (Without permanent end fittings) that is used for wrapping and securing around an object to provide a point or points from which to lift the object, or attaching to an approved structure to serve as a point from which to rig.

Front 23

Lay

Back 23

Manner in which wires are helically laid into strands or strands into rope.

Front 24

Lay length of wire rope

Back 24

The distance along a wire rope in which a strand makes one complete turn around the ropes center.

Front 25

Lay left

Back 25

Strand-strand in which the cover wires are laid in a helix having a left hand pitch, similar to a left hand screw. Rope - rope in which the strands are laid in a helix having a left hand pitch, similar to a left hand screw.

Front 26

Non-rotating wire rope

Back 26

18x7 wire rope consisting of a 6x7 left lay Lang lay in a rope covered by twelve 7-wire strands right lay regular lay.

Front 27

Open socket

Back 27

Wire rope fitting consisting of a "basket" and two "ears" with a pin.

Front 28

Parcelling

Back 28

Narrow strips of canvas which are wound around ropes for protection.

Front 29

Preformed strand

Back 29

Strand in which the wires are permanently shaped, before fabrication into the strands, to the helical form they assume in the wire rope

Front 30

Preformed wire rope

Back 30

Wire rope in which the strands are permanently shaped, before fabrication into the rope, to the helical form they assume in the wire rope

Front 31

Pre-stressing

Back 31

Stressing a wire rope or strand before use under such a tension and for such a Time that the constructnal stretch is largely removed

Front 32

Re-certification date

Back 32

The last day you may use the equipment without performing and recording a complete visual inspection of the handling equipment, or a load test and visually inspecting lifting equipment.

Front 33

Regular lay rope

Back 33

Wire rope in which the wires in the strands and the strands in the rope are laid in opposite directions

Front 34

Right lay

Back 34

Strand-strand in which the cover wires are laid in a helix having a right hand pitch, similar to a right hand screw. Rope-rope which in the strands are laid in a helix having a right hand pitch, similar to a right hand screw.

Front 35

Shock loading

Back 35

A resulting load or Force from the rapid change of movement, such as impacting or jerking, of a static load. A shock load is generally significantly greater than a static load.

Front 36

Slings

Back 36

An assembly used for lifting when connected to a lifting mechanism at the slings upper end and when supporting a load at the slings lower end.

Front 37

Socket

Back 37

Type of wire rope fitting, see"Bridge Sockets" "Closed Sockets" "Open Socket" and "Wedge Sockets"

Front 38

Splicing

Back 38

Interweaving of two ends of rope so as to make a continuous or endless length without appreciably increasing the diameter. Also making a loop or eye in the end of a rope by tucking the ends of the strands.

Front 39

Strand

Back 39

an arrangement of wires helically laid about an axis, or another wire or fiber center to produce a symmetrical section

Front 40

Swaged fitting

Back 40

Fittings in which wire rope is inserted and attached by Cold flowing method.

Front 41

Wedge socket

Back 41

Wire rope fitting in which the rope and is secured by a wedge.

Front 42

Wire rope

Back 42

A plurality of strands laid helically around in axis or a core

Front 43

Wire rope grommets

Back 43

One continuous loop, either hand tucked or mechanically spliced. The minimum circumferential length for a wire rope grommet, commercially or locally fabricated is 96 times the wire rope diameter.

Front 44

Wire rope slings (pendant)

Back 44

A sling fabricated from wire rope usually fabricated with an eye on each end.