Working conditions of shafting
Because the shaft system is located below the waterline, part of the shaft system is immersed in water for a long time, the working conditions are bad, and the force is complicated; at the same time, it is also affected by the deformation and loading of the hull.
If the shaft system is designed, arranged or installed improperly, it will often cause the friction part of the shaft system to heat up, violently wear, and even break the shaft.
