QPM - Demountable Rubber Stave Propeller Bearings

Demountable stave bearings are water lubricated cutless bearings without the costly outer naval brass shell.  The housing for the demountable stave is built into the vessels and is part of the vessel structure.  This makes initial cost high but replacement cost low as you are replacing the rubber bearing material only and not replacing the costly brass outer shell.  This bearing system becomes more economical with larger sizes shaft diameters.