D R I E – D Lagertechniek bv DATA SHEETS

More documents

Recommendations

Info

DRIE-D Lagertechniek bv the right perspective Kiotoweg 120, 3047 BG, Rotterdam, NL telephone: (+31) 10 - 462 07 00 telefax: (+31) 10 - 462 07 07 E-mail: mail@drie-d.nl internet: www.drie-d.nl OFFSHORE, J-LAY TOWER Application One of the challenges of a J-lay installation is to keep the pipe were it should be. The tensioners used for this should be designed as compact as possible to keep the dimensions of the total installation under control. This of course means that stresses in the various components are taken to the limit and that the result is a relatively flexible construction. By using D-glide bushings in all joints and hinges peak stresses remain relatively low because of the low stiffness of the material. The bearings easily take up the misalignments caused by the flexibility. Advantages of the D-glide solution - compact, ‘efficient’ design - relatively low stresses in the ‘joint-area’ - small misalignments allowed - maintenance free - no corrosion problem Files Offshore, J-lay tower S7000.jpg: One of the largest J-lay installations in the world with D-glide bearings in the tensioners. data sheets UK, D-glide complete, 2008, page 22
DRIE-D Lagertechniek bv the right perspective Kiotoweg 120, 3047 BG, Rotterdam, NL telephone: (+31) 10 - 462 07 00 telefax: (+31) 10 - 462 07 07 E-mail: mail@drie-d.nl internet: www.drie-d.nl OFFSHORE, FLOATING SHEARLEG Application On this large floating shearleg the customer changed to direct load measurement by means of load cells in the pins of the main blocks. Those are difficult to combine with lubrication therefore DRIE-D was invited to supply maintenance free D-glide bearings for this high load (average bearing pressures over 120 MPa) application. After removal of the support brackets it was found that the bronze layer in there had also worn out. In less than a week DRIE-D made bearing segments with exactly the correct thickness and glued them in the brackets so that now also the brackets no longer require lubrication. Any other option would have taken much more time and would have been far more expensive. Advantages of the D-glide solutions - maintenance free - modest demands on the shaft materials - short delivery time - low costs Files Offshore, Floating Sheerleg, 1.jpg: Offshore, Floating Sheerleg, 3.jpg: Offshore, Floating Sheerleg, 4.jpg: Offshore, Floating Sheerleg, 5.jpg: D-glide FS bushings installed in the main blocks. D-glide segments glued in the brackets. View of the top of the A-frame, D-glide FS bushings visible in the eyes of the main blocks. Side view of the vessel. data sheets UK, D-glide complete, 2008, page 23
Page 1: D R I E - D Lagertechniek bv the ri
Page 4 and 5: DRIE-D Lagertechniek bv the right p
Page 26: DRIE-D Lagertechniek bv the right p

D R I E – D Lagertechniek bv DATA SHEETS

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?