Delivering superior performanceThe same advanced design of OK couplings has been applied to the coupling bolt. The Supergrip bolts represent a 'quantum leap' in improved technology for connecting rotating flange couplings. They are on the job - on land and at sea - delivering truly superior performance.
Compared with traditional bolt systems, Supergrip bolts are much easier to install and remove. The bolts are inserted and removed by hand and with a clearance, eliminating the risk of seizure. The bolt is hydraulically expanded and tightened into the coupling bolthole, using a set of portable tools. The need for an overhead crane and time-consuming slugging of bolts is eliminated.
Cut costs and the length of outagesOnce the holes have been line-bored for initial installation, there is no need for further reaming or boring of holes. Thus the use of Supergrip bolts eliminates uncertainty about the length of downtime needed for removing and installing bolts at outages. Costs are cut and the length of future outages is significantly decreased.
The oil-injection method used for removing the reusable bolts was pioneered by SKF. This technology is based on nearly a half century of engineering and manufacturing couplings for the marine market.