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The shaft bracket helps to keep the propeller shaft securely aligned. It must be designed in a way that makes the propeller run with a proper supply of water. It also has to be machined in a way that secure that the bearing within the bracket are be correctly positioned. A faulty bracket may lead to severe water supply problems, especially for boats capable of high speeds. This may result in cavitation, reduced speed and noise.
We design and produce or obtain both cast standard bronze brackets and specially welded brackets made from different steel qualities or aluminum. Bracket parts are made on demand for jointing and adaption by the boat builder.
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Clements Marine can offer a wide range of glass-in and palm-type ‘P’ & 'A' brackets to cover most requirements for power craft and sailing auxiliaries. Special designs can be produced using ‘in-house’ adaptable tooling, thus always giving accurate machined repetition for finished ‘P’ and ‘A’ brackets.
Most brackets for sea-going vessels are cast from BS1400 nickel aluminium bronze or BS1400 HTB1 high tensile brass. Alternatively, they may be fabricated from mild steel or 316 stainless steel. Each bracket is despatched complete with high specification water lubricated rubber cutless bearings
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FRANCE HELICES MANUFACTURES ALL TYPES OF BRACKETS. BECAUSE OF THE LARGE NUMBER OF ANGLES, FRANCE HELICES HAS DEVELOPED A WIDE RANGE OF PATTERNS WITH AN EXCLUSIVE MODIFICATION ANGLE SYSTEM IN ORDER TO ALLOW ANY ANGLE OF INCLINATION BEFORE CASTING. THE DESIGN HAS BEEN MADE TAKING IN CONSIDERATION THE FOLLOWING PARAMETERS : MINIMUM DRAG, MINIMUM WEIGHT, STANDARD N.A.C.A. PROFILE, AIR INDUCTING (OPTION), NON CAVITATING PROFILE, HUB SIZED ACCORDING TO PROPELLER HUBS TO AVOID HYDRODYNAMIC DISTURBANCES.
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