Our sailboat is equipped with an Aquadrive system (CV 15 with a B10 thrust bearing). The thrust bearing area gets hot while under power (4 knots) and gets so hot it starts to smell if we increase the speed to 6-7 knots. Then, if we reduce the speed the smell is gone, so I assume the temperature goes down a bit. Still, it is so hot you cannot touch it.
Then, last year we actually ordered a new bearing and replaced it. Still, it is as hot as ever.
If it matters, I even changed the transmission
from a 2:1 to a 3:1 to reduce the number of RPM
to the shaft so as to keep the Aquadrive temperature down. It did not change anything.
We asked around and were told these systems do get hot, and it's OK.
I was wondering, however, if anyone on this forum has experienced this.
Here is the unit.
ModuLine B10 Series - Marine - GKN Service International GmbH