Our shaft brackets are designed bespoke to achieve optimum performance in line with every vessel individual requirements. A low drag areafoil section is applied to all struts ensuring the best highest efficiency and performance with lowest vibration level is delivered every time. Our Shaft brackets range from a bore size of 25mm to 180mm diameter up to a cast weight of 600kg.
A 3D model is produced for all component drawings and is used for CFD and FEA to provided optimised hydrodynamic geometries and strength analysis. The developed 3D model can be issued to the customer allowing them to import the file into the 3D hull geometry. This ensures precise and accurate fitting is achieved before any tooling manufacture begins.The 3D model is then used to produce tooling as an exact replica of the finalised design. It is then ready for the casting procedure.
Shaft brackets (A or P bracket/Strut) are typically manufactured from high grade nickel, aluminium bronze or manganese bronze materials. Cast in our own foundry with the latest technology casting processes.
The casting process is controlled to IACS requirements including material analysis and NDT testing when needed. Most castings are machined on the latest 5 Axis Machining Centres. Machining in one loading allows CJR to achieve the highest standard of accuracy for alignment of palm mounting to shaft bore. All castings are finished to the highest standard and are fitted with water lubricated bearings which can be IACS approved when required.
Alternatively all brackets can be fabricated in aluminium, stainless steels, or mild steel as a complete item or component parts.
Shaft brackets can be bolted into the hull using the palm plate. P struts can be glassed into the hull or alternatively glassed in and bolted through and fittings secured with chock fast. Fitting methods and procedures are to the designer or boat yards discretion.
All components parts can be supplied with fixing bolts and backing plates, strips or washers
Alternatively all Brackets can be fabricated in aluminium, stainless steels, or mild steel as a complete item or component parts.
Each bracket produced under classification society rules is inspected to an IACS approved quality procedure.