How to choose the appropriate wire-rope assembly, according to Bergen

Bergen carries different kinds of wire rope.

Bergen Cable has earned an unmatched reputation around the world for its selection of cable solutions, and it is also a useful source of wire rope. Wire rope is similar to cable in certain ways, and businesses must take certain factors in consideration when trying to choose the best wire-rope solution.

As a team of experienced experts in wire rope, Bergen offers some valuable advice on how to get the most out of it.

Abrasive wear, fatigue, safety, strength

According to Bergen, a customer should consider several important criteria when deciding on the most appropriate kind of wire rope. It is critical to evaluate the relative importance of these factors and pick a solution with features that are most suitable for the task and for repeated use. Bergen deems the following four factors to be the most important ones:

• Abrasive wear. Abrasion resistance depends upon size, carbon and manganese content, heat treatment of outer wires, and construction. Larger outer wires with less flexible construction withstand abrasion more successfully than finer outer wires of more flexible rope do, while high carbon and manganese boost strength.
• Fatigue. Fatigue failure can result from the propagation of small cracks under repeated application of bending loads. This happens when wire rope functions over relatively small drums or sheaves. Repeated bending and straightening of individual wires causes fatigue. Users can prevent early fatigue with sheaves and drums of appropriate size and a very flexible rope.
• Safety. The safety factor of wire rope equals the ratio of the weight it can hold to that of the full working load. This criterion also depends on operational speed, shock load, the fittings used to secure the rope ends, rope length, the number and sizes of sheaves and drums and their locations, the cases of corrosion and abrasion, and other factors.
• Strength. Wire rope is frequently subjected to direct tension, acceleration, shock loads, bending, several simultaneous forces, and other stresses. Selecting wire rope of the right strength, as determined by size, grade, and construction, helps to minimize the effects of these stresses.

For more information, contact Bergen.

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