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Solimar has a big experience in the manufacture of rudder shafts made by using aluminium 3571, Ergal 55, stainless steel A304, titanium and special steel A630. The rudder shafts are available with diameter from mm. 25 up to mm. 160. The rudder shafts are turned and tapered by using CNC machine. The double plates are welded to shaft, all the rudder shafts have the safety key slot. All the rudder shaft are preset for the connection of the emergency tiller (emergency tiller lever supplied on demand).
Solimar can also supply the rudder shafts complete of rudder blade.
For the carbon fibre rudder shafts Solimar supply some important completion accessories, for example the top bushing preset for the connection of the emergency tiller, the supporting ring, the cylindrical bushings for the position where the rudder bearings must be installed. Please contact our technical department for more information and explanation.
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As every rudder stock is different, we always produce them to the specific customer requirements. In general the designer of the yacht specifies the material and dimensions. We can be of assistance if a calculation for a different material is required or if the design has to be modified for a more economic production. In a lot of cases designers draw a rudder shaft with a maximum diameter rounded off to a full figure (i.e. Ø 70, Ø 80, Ø 90,etc mm). It could be that the calculated diameter is 2 mm less. This is a very costly round off that is completely unnecessary: To achieve a high tolerance surface of Ø 90 mm we would need to use a 100 mm solid bar profile. If the diameter of the rudder stock would be 88 mm, we could use a 90 mm solid bar profile. As the price of bar material goes up exponentially with the diameter, one can save a lot of money by acquiring the exact calculated diameter from the designer.
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Edson's Stuffing Boxes combines a rudderpost bearing with an above-the-waterline stuffing box for rudderpost sizes ranging from 1" (2.5 cm) diameter to 4-1/2" (11.4 cm). We recommend fiberglassing the stuffing box/bearing to the top of the tubing when the rudderpost is in place. This can be done easily using alternating layers of fiberglass mat and cloth. This makes the post a structural bearing and will help carry rudder loads with minimal friction. Custom sizes are available on request, but allow additional time.
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