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R&D MARINE
Flexible Couplings

Protect your boat's drivetrain with the Flexible Coupling. Fits between the transmission output flangeand the shaft flange to absorb shock load s resulting from gear changes, or thepropeller striking a submerged object. If the disc is destroyed from massiveshock load, the metal compression straps keep the coupling intact, ensuring thatthe drive system is functional in both forward and reverse. 

  • The flexible disc is machined from resilient and durable polyurethane
  • The unit will flex, absorbing and isolating vibrations
  • Will compensate for some misalignment due to movement of the engine or flexing in the vessel's structure
  • Isolates the shaft
  • The unit is easy to install and you can align your shaft with it bolted in place
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
Flexible Coupling - 4 dia, 4 bolts, 0.39 hole dia, 3.25 bolt circle dia, 4.5 coupling dia, 1.28 coupling length, 10MM coupling bolt dia, 5 hp/100 rpm 3684883 910-001
In stock online.

$194.99

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Flexible Coupling - 4.00 dia, 4 bolts, 0.39 hole dia, 78mm bolt circle dia, 4.5 coupling dia, 1.28 coupling length, 10mm coupling bolt dia, 20 hp/100 rpm 3684891 910-002
In stock online.

$184.99

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Flexible Coupling - 4 dia, 4 bolts, 0.39 hole dia, 3.25 bolt circle dia, 4.5 coupling dia, 1.35 coupling length, 3/8UNF coupling bolt dia, 7 hp/100 rpm 3684917 910-004
In stock online.

$224.99

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Flexible Coupling - 5 dia, 4 bolts, 0.44 hole dia, 4.25 bolt circle dia, 5.75 coupling dia, 1.75 coupling length, 7/16UNF coupling bolt dia, 13hp/100 rpm 3684925 910-009
In stock online.

$349.99

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Flexible Coupling - 5 dia, 4 bolts, 0.39 hole dia, 100MM bolt circle dia, 5.75 coupling dia, 1.75 coupling length, 10MM coupling bolt dia, 10 hp/100 rpm 3684933 910-012
Delivery within 2 - 3 weeks.

$349.99

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Flexible Coupling - 4 dia, 4 bolts, 0.39 hole dia, 3.25 bolt circle dia, 4.5 coupling dia, 1.28 coupling length, 10MM coupling bolt dia, 3 hp/100 rpm 3684909 910-014
Delivery within 2 - 3 weeks.

$194.99

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Product Description

Protect your boat's drivetrain with the Flexible Coupling. Fits between the transmission output flangeand the shaft flange to absorb shock load s resulting from gear changes, or thepropeller striking a submerged object. If the disc is destroyed from massiveshock load, the metal compression straps keep the coupling intact, ensuring thatthe drive system is functional in both forward and reverse. 

  • The flexible disc is machined from resilient and durable polyurethane
  • The unit will flex, absorbing and isolating vibrations
  • Will compensate for some misalignment due to movement of the engine or flexing in the vessel's structure
  • Isolates the shaft
  • The unit is easy to install and you can align your shaft with it bolted in place

West Advisor

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REVIEW SNAPSHOT®

by PowerReviews
R&d MarineFlexible Couplings
 
5.0

(based on 1 review)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

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Reviewed by 1 customer

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5.0

cut your vibration

By Mac

from Ventura,CA

About Me Advanced

Verified Buyer

Pros

  • Good Performance
  • Quiet
  • Reliable

Cons

    Best Uses

    • Large Boats
    • Small Boats

    Comments about Flexible Couplings:

    This is the perfect anitvibration device for the engine and driveshaft. Always install per instructions.

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