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January 14th, 2019

Components of Wire Rope

Wire rope is signified as an intricate piece of engineering marvel that comprises of individual elements which work in unison to serve its multi-disciplinary purposes. We`ll go through all the components that makes up a wire rope and overview the strand patterns that facilitates its identification.

Components of Wire rope:

There are three essential elements that make up a wire rope:

  1. Wire
  2. Strands
  3. Core

Wire

The essential building block of wire rope embodies a thin metallic wire. These wires symbolizes the smallest component of a wire rope and are bundled together round a core to form a wire rope altogether.

Strands

Strands of wire rope constitutes of two or more wires wrapped around an axial member in a geometric pattern or in combination with steel wires and other materials. These individual strands are then laid around the core in a helical pattern. Strands represents the major portion that acts as a primary load bearing entity. A typical strand can constitute any number of wires, same goes for rope which can contain ‘n’ number of strands.

Core

The core forms the backbone of a wire rope as it runs through the center of the rope. It supports the strands and helps to maintain their relative position under loading and bending stresses.

Strand Patterns

The construction of wire rope dictates the arrangement of each wire within an individual strand. The basic strand construction are explained below:

  • Single Layer– This construction consists a total of 7 wire, with a single wire at center and six wires surrounding it having identical diameter.
  • Filler Wire– This construction has two layers of uniform size wire wrapped around a center. This arrangement is characterized by inner layer having half the number of wires as the outer layer. It also consists of small filler wire equal in number to the inner layer that are laid in valleys of inner wire.
  • Seale– This construction has two layers wrapped around a center with equal number of wires in each layer having same diameter. The larger outer wires of which rest between the smaller inner wires.
  • Warrington– This construction consists of two layers wrapped around a center with one diameter of wire in inner layer, and two diameters of wire alternating large and small in outer layer. The larger outer layer of which lay in valleys while the smaller outer layer lays on the crowns of inner layers.
  • Combination– When a strand is constructed in single operation using two or more of the above constructions, it can be referred to as a “Combination pattern”.

In this post we provided you with an insight into wire rope components and essential attributes to identify them. In our next article we`ll extrapolate the application of wire rope pertaining to individual industry domains.



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