Light roller upper rudder carrier applied rudder pintle diameter 40mm-150mm it can be applied to rudders with small loads and pintles of small flexibility
Heavy roller upper rudder carrier applied rudder pintle diameter120-340 it has automatic self-aligning ability and is expecially suitable for highed rudder with heavy loads under bad situations
watertight roller upper rudder carrier applied rudder pintle diameter120-400 it has advantages of B and sealing effect