Cutless Bearing Clearances and Replacement Guidelines [PDF]

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7/4/2020



Cutless Bearing Clearances and Replacement Guidelines



Pacific Marine & Industrial



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Cutless Propeller Shaft Bearings Cutless Bearing Clearances and Replacement Guidelines When do I replace my cutless bearing?



Water Flow Rate Desired for Cutless Bearing: 2 GPM Per Inch of Shaft Diameter. Replace Cutless Propeller Shaft Bearing: When 1/2 of water V groove has been worn away. Another indicator is when shaft feels loose in the bearing. Bearings Tolerances: The following are the standards established by the US Navy, according to BuShips plan number 810-1385664: How to Install and Modify a Cutless Propeller Shaft Bearing How to Choose A Propeller or Rudder Shaft Bearing and the Differences Between Bearing Types Hole Drilling Diagram for Flange on Flanged Propeller Bearings www.pacificmarine.net/engineering/propeller-and-rudder-bearings/cutless-bearing-clearance.htm



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7/4/2020



Cutless Bearing Clearances and Replacement Guidelines



Shaft Clearance Tolerances for New Bearings 3/4" 1 7/16" 2" 2 1/2" 3 1/8" 3 7/8" 4 3/8" 5" 5 1/2" 6" 6 1/2" 7" 7 1/2" 8" 8 1/2" 9" 10" 11" 11 1/2" 12 7/8" 13 1/2" 14 5/8"



Shaft Size (Inches) thru thru thru thru thru thru thru thru thru thru thru thru thru thru thru thru thru thru thru thru thru thru



1 3/8" 1 7/8" 2 3/8" 3" 3 3/4" 4 1/4" 4 7/8" 5 3/8" 5 7/8" 6 3/8" 6 7/8" 7 3/8" 7 3/8" 8 3/8" 8 7/8" 9 7/8" 10 7/8" 11 3/8" 12 3/4" 13 3/8" 14 1/2" 15"



+.003 +.004 +.006 +.007 +.008 +.010 +.012 +.015 +.017 +.020 +.022 +.024 +.025 +.027 +.028 +.030 +.032 +.034 +.035 +.037 +.040 +.042



Shaft Clearance (Inches) to to to to to to to to to to to to to to to to to to to to to to



+.008 +.010 +.012 +.014 +.015 +.017 +.019 +.023 +.015 +.029 +.032 +.034 +.035 +.037 +.040 +.042 +.044 +.048 +.050 +.052 +.055 +.058



Bearing OD Clearance Tolerances for New Bearings: 1 1/4" 2" 6" 7 3/4" 12" 16"



Bearing OD (Inches) thru thru thru thru thru thru



2" 6" 7 1/2" 12" 16" 18"



+.001 +.002 +.002 +.005 +.006 +.008



Tolerance (Inches) to to to to to to



-.001 -.001 -.002 -.005 -.006 -.008



[ Home ] [ Up ] [ Naval Brass Propeller Shaft Cutless Bearings ] [ Metric Naval Brass Propeller Shaft Cutless Bearings ] [ Non Metallic Cutless Propeller Bearings ] [ Metric Non Metallic Cutless Propeller Bearings ] [ Flanged Forward Stern Tube Cutless Bearings ] [ Flanged Strut or Aft Stern Tube Cutless Bearing ] [ Split Naval Brass Forward Stern Tube Flanged Propeller Bearings ] [ Split Naval Brass Strut or Aft Stern Tube Flanged Propeller Bearings ] [ Cutless Bearing Clearances and Replacement Guidelines ] [ How to Install or Modify a Cutless Bearing ] [ Flanged Cutless Bearing Hole Drilling Diagrams ]



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Cutless Bearing Clearances and Replacement Guidelines



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