D R I E – D Lagertechniek bv DATA SHEETS
D R I E – D Lagertechniek bv DATA SHEETS
D R I E – D Lagertechniek bv DATA SHEETS
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DRIE-D <strong>Lagertechniek</strong> <strong>bv</strong><br />
the right perspective<br />
Kiotoweg 120, 3047 BG, Rotterdam, NL<br />
telephone: (+31) 10 - 462 07 00<br />
telefax: (+31) 10 - 462 07 07<br />
E-mail: mail@drie-d.nl<br />
internet: www.drie-d.nl<br />
OFFSHORE, PIPE-LAY VESSEL, STINGER JOINTS<br />
Application<br />
The different sections of the stinger construction are joint by steel shafts in bronze bushings,<br />
locked by keeper plates bolted to the shaft and the construction. Although this should be a static<br />
application it appeared that the shafts tended to rotate. Bolts on a number of keeper plates had<br />
sheared off and one shaft had worked itself sideways by almost 50 mm. Static friction between<br />
shafts and bronze bushings appeared to be so high that forces and torques caused by the micro<br />
motions were far higher than anticipated.<br />
When this was discovered the concerning bronze bushings were replaced by D-glide FS bushings<br />
(D-glide FS is a high load, high stiffness variety of D-glide F). Average bearings pressures in this<br />
application can go up to as much as 180 MPA.<br />
Advantages of the D-glide solution<br />
- low torques because of low friction<br />
- no corrosion<br />
- easy installation<br />
Files<br />
Offshore, Pipe lay vessel, 5.jpg: Picture of the joints with the keeper plates visible.<br />
data sheets UK, D-glide complete, 2008, page 20
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