The Light Roller Upper Rudder Carrier (A type roller upper rudder carrier) can apply to the rudder which the load isn't heavy and the revolving degree isn't large. And the diameter range of the rudder stock is Φ40-Φ150...

The Marine Roller Upper Rudder Carrier (C type roller upper rudder carrier) has the function of sealing. And it has automatic centering.The water-tight upper roller rudder bearing is very suitable for heavy load of hanging rudder.