anglais vers français Technique / Génie Génie et sciences pétrolières oil rig

Can anyone translate "stern roller" into french.

MSI would require a vessel with length approx. 45m or larger, clear deck space of around 30m x 5m, stern roller and crane capable of lifting 3 tons at 1m over the side or stern. It is possible to use a smaller vessel and deploy the mooring in sections by using a tugger winch, but MSI would prefer to lay the entire mooring out on deck (from an HSE perspective). In addition to any Total audit MSI would cross-check the vessel using the OGP guidelines.