Centaflex marine 35mm shaft coupling

A used Centaflex coupling with studs in position to fit a Volvo Penta HS25A-B gearbox and a 35mm shaft.
There are alternative stud positions on the coupling, currently the stud diameter is about 110mm and the alternative is about 80mm.
The Centaflex was installed by Hallberg-Rassy when the boat was built in 2008 and has now been replaced, after less than 2,700 engine hours, with an Aquadrive.
It was fitted to a 75hp engine with a shaft speed of 1200 rpm - engine rpm 3000 thru 2.71 reduction gear. Read more