The wire ropes are found having following advantages as compared to the fibre ropes:

• High flexibility and Wear resistance.

• Better crushing resistance.

• Higher strength as compared to round strand.

• Less resistance of the bending fatigue.

• Reduction of mechanical stress on the rope as well as the sheave

• Less damages

• Significant Cost Reduction.

Procedure For Designing A Wire Rope

The procedure for designing a wire rope is as follows:

• First, there is a need to select an appropriate type of rope for the given application.

• You must design load by assuming a safety factor within 2 to 2.5 times the safety factor.

• Determine the diameter of the wire rope (D) by equalizing the tensile strength of the rope for the design load.

• Determine the diameter of the wire and the area of the rope.

• Locate the stresses or loads in the rope.

• Determine the effective stress or load during normal functioning.

• Find its real safety factor and compare it with the safety factor.

• If safety factor is within the permitted range then only the design can be stated as protected.

Classification of Wire Rope

According to the direction of twist of any particular individual wire and strands which are found being related to each other, the wire ropes can thus be classified as follows:

1. Cross or Regular Laying Ropes

Cross or Regular Laying Ropes are referred to as those types of ropes wherein the direction of twisting of wires inside the strides is found being opposite as compared to the direction of the twist of the stand. These types of ropes are the ones which are found being most commonly used.

2. Parallel or Lang Lay Ropes

Parallel or lang lay ropes are referred to as those ropes which are found in the direction of rotation of the strands in the strands and is found similar to the strands in the rope. These ropes are found having a better bearing surface whereas these are easily split and are thus twisted when loaded. These ropes are known to be more flexible and effective as compared to any other type. Since these ropes are found having the tendency to rotate, they are most commonly used in the lifts and are waved by the guide methods and also as per the ropes.

3. Composite or Reverse Laid Ropes

Composite or reverse laid ropes are referred to as those types of ropes wherein the wires in two adjacent strands are found being rotated in the opposite directions.

The direction of the laying of ropes can either be right-handed or left-handed which depends upon the strands formed either right-handedly or left-handedly helix. But the right-handed ropes are most commonly used.

2. Fibre Rope

Fibre ropes are referred to as those ropes which are found being made from fibres of varying length that is also found being dependent on their source. These are the ones which are found being known to be made up of the twisted up rope from the yarns, wherein the twist is responsible for binding the fibres firmly together so that it can hold the friction whenever the yarn is subjected to undergo any kind of strain.

Ropes for transmission power are usually found being made up of fibrous materials like cannabis, manila, cotton etc. Since hemp and manila fibres are found to be rough, the ropes are found being made up of these fibres which are not very flexible and have poor mechanical properties too. The hemp rope is found having less strength as compared to the Manila ropes.