Factor 55 Synthetic Rope Spool

Factor 55 Synthetic Rope Spool   There is a common belief that a synthetic rope eye termination should possess a diameter D/d ratio in the 6-8 range. Most synthetic winch ropes come with metal thimbles providing this ratio when new. The trouble is that the metal thimbles eventually yield and collapse onto the retaining pin, thus reducing the D/d ratio considerably. Is this so bad? What happens to synthetic rope strength when the D/d ratio is reduced? Luckily for us off roaders, many technical papers have been written on this by rope manufacturers and cordage experts and corresponding tests have been completed. Even when a single leg rope eye is pulled against a D/d of 1 (3/8 rope eye pulled against a 3/8 pin), the rope still retains almost all of its original strength. Why is this?It’s because you have the load of the pin being carried by two legs of the rope, similar to basket loading a synthetic sling. In fact, the testing standard for pull testing synthetic rope single legs is to us