Pacific Marine & Industrial Logo
Pacific Marine & Industrial®       
 MANUFACTURING ◊ DISTRIBUTION ◊ SERVICE
 
Contact Information    Search Site  ◊  info@PacificMarine.net
 
 

How PM&I Can Help Prevent Delays

How To Size A Propeller Shaft

how to size a propeller shaft
   

D = Shaft Diameter in inches (mm)

S.F. = Safety Factor*

St = Yield Strength, Tensional Sheer in lbs/in2 (Mpa)

N = Shaft Speed in RPM

 

* According to ABYC, safety factors of 2 are considered adequate for boats intended for light pleasure service.  Pleasure boats intended for heavy service and all diesel or gas turbine pleasure boats should consider safety factor approaching 5.  Commercial and high performance craft should consider safety factors approaching 10.

 

  mechanical properties: propeller shaft materials; comparision chart  
   
       
 

Home ] Up ] Aqualoy 17 Propeller Shaft ] Aqualoy 19 Propeller Shaft ] Aqualoy 22 and 22 HS Propeller Shaft ] 316 Stainless Steel Propeller Shaft ] 17-4 Stainless Steel Propeller Shaft ] Nitronic 50 Stainless Steel Propeller Shaft ] Propeller Shaft Tolerance Tables ] [ How To Size A Propeller Shaft ] Propeller Shaft Bearing Spacing ] SAE Specification J755 ] Propeller Shaft Installation ] Propeller Shaft Repair ]

   
California ◊ Florida ◊ Shanghai ◊ Germany
Lagos Nigeria ◊ Valparaiso Chile ◊ Dubai UAE
Trusted Since 1985
   
      World Wide Community Servicec  Project List PM&I
  
Pacific Marine & Industrial is
a registered service mark of:
  
Quality Pacific Manufacturing, Inc.
Copyright 1985-2017
 All Rights Reserved