🔍 Key Concepts

• Wire rope construction (number of strands vs. number of wires per strand) • Trade‑off between flexibility vs. abrasion resistance in wire rope • How outer wire size affects wear when running over sheaves or drums

💭 Think About

• Compare how a 6x19 wire rope is built internally versus a 6x37 of the same diameter. What happens to individual wire size when you increase the number of wires? • Ask yourself which construction usually has thicker outer wires and what that means for surface wear and crushing resistance. • Think about typical uses: which class is chosen when you expect heavier abrasion and rough handling rather than maximum flexibility?

✅ Before You Answer

• Verify which class (6x19 vs 6x37) has larger individual wires for the same overall diameter. • Check which property is mainly improved by larger, fewer wires: is it flexibility, abrasion resistance, or something else? • Confirm that the advantage in the question refers to a mechanical/operational property of the rope itself, not how it is used (towing, holding, etc.).