Rudder seals

Hello all,

Just wondering what are some of the methods boats use to seal rudder shafts in the tube? Do many use a tight fitting bronze bush?

Mike

 

www.duramax-marine.com Search ALL the rubber type bushings. They are used for prop and rudder. You will need a top seal or a housing high enough to stop spill out in rough sea conditions. They are used in + 200 mph boats and are cheap, no grease and dirt falls out the bottom. Love them.

 

rudderseals

Most common in steel vessels is the bronze bush as the lower bearing and a roller bearing on top of it.
The sealing is under the bronze bush and has a double fuction: keep the grease in and the water out. It is a similar type of sealing as used on the tailshaft, but more simple design.
Normally the rudderstock goes through the rudder trunk and ends above the waterline. So if you loose your rudder and rudderstock, you have a moon pool and not a leaking hole.
regards
carel reuser