The stinger rollers of the Solitaire, one of the world’s largest pipe-lay vessels, were originally fitted
with grease lubricated roller bearings.
However from day one there were problems: seals failed, bearings broke, grease leaked and so on.
After a year in service it was decided that a new bearing design was needed for the rollers of this US$400,000
a day vessel.
Allseas invited a large number of bearing manufacturers to present a proposal. DRIE-D’s design was chosen
and a number of bearing materials were assessed on the Lorelay.
D-glide by far showed the least wear of all alternatives considered
(other composites and self-lube metal bearings like Oilless) and with the lowest friction.
Advantages of the D-Glide solution
Offshore pipe-lay vessel: Picture of the 90 metre long stinger of this giant, state of the art, fully Dynamic Positioned Pipe lay vessel.
- Fully maintenance free
- Incorporated seals
(prevents dirt intrudion in bearings)
- Very long bearing life
- No corrosion problems
(not metal, an electrical insulator)
- Low cost
- Simple design