Class approved Polymer bearing for use in Ship building
Description
- Research in Hydro-Dynamic Lubrication efficiency of a ships propeller shaft bearing has found that the use of seawater-lubricated elastomeric polymer bearings reduces fuel consumption and enhances inter docking inspection intervals.
- The “Polymer Bearing” suitable for sea water cooled shaft lines must be able to withstand shock loading and vibration. Bearing should be capable to absorb impact loads making it much more resistant to damage from pounding during operation in heavy seas than stiffer materials such as phenolic laminates. The bearing is to be developed with non-ferrous aluminum bronze liner and assembly ready to fit on A-Bracket, Middle Bracket, Fwd & Stern Tube Brackets. It can also be fitted on Fin stabilizers and Steering Rudder.
- The bearing must be physically restrained against axial movement – this is typically by internal shoulder and retaining ring.
- Type Testing of Polymer bearing by any IACS Class.
- The indicative standards and QAP for the Polymer bearing to be submitted. Relevant standards applicable for the bearing to be followed.
- Presently the stern tube shaft bearing is being imported. Development of this technology will enable Indian Naval ships to be self-reliant.