ZF Marine Flexible Couplings

How to select the right coupling

1) Engine horse power and maximum rated RPM.

2) Type of gearbox and reduction ratio.

3) Gearbox flange details: Diameter of flange, Diameter of register, Bolt circle diameter of fixing holes, Size and quantity of holes. (Bolt circle diameter is the distance between the center of the hole at 12 o'clock position to the center of the hole at 6 o'clock)


Coupling Capacity = HP x Gear Ratio x 100/Max Rated RPM. Once your capacity is determined select your R&D Coupling that that matches the capacity for your engine.


We are Journeymen Propeller Technicians, Boat Propeller Sales and Repair, 40 Years Experience, Authorized Distributors. For more information on our products please visit our catalog and download page. Questions? 866-790-7767 or email - info@getaprop.com

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R&D Flex Coupling 910-001

4"  R&D Flexible Coupling for Borg Warner, Newage PRM, Hurth, and ZF Transmissions. R ..

$154.95 Ex Tax: $154.95

R&D Flex Coupling 910-003

5.75" - Borg Warner, Newage, Twin Disc, ZF and Hurth Transmissions. Coupling Capacity 20 - ..

$405.95 Ex Tax: $405.95

R&D Flex Coupling 910-004

4" ZF, Hurth, Borg Warner and Newage PRM Transmissions. Coupling Capacity 7. The R & D Flex..

$179.95 Ex Tax: $179.95

R&D Flex Coupling 910-006

5.75" ZF, Hurth and Twin Disc Transmissions. R & D Flexible Coupling Capacity 20. The ..

$479.95 Ex Tax: $479.95

R&D Flex Coupling 910-009

5" ZF, Hurth, Borg Warner, Newage PRM and Volvo Transmissions. Coupling Capacity 13. The R..

$279.95 Ex Tax: $279.95

R&D Flex Coupling 910-014

4" Borg Warner, Hurth, Newage PRM, and ZF Transmissions. R & D Flexible Coupling Capacity 3..

$154.95 Ex Tax: $154.95

R&D Flex Coupling 910-025

5.75" Borg Warner, Hurth, Newage PRM, ZF, and Twin Disc. Coupling Capacity 28. The R &..

$539.95 Ex Tax: $539.95

R&D Flex Coupling 910-027

8.86" ZF W320-320A - R & D Flexible Coupling Capacity 28. The R & D Flexible Coupl..

$1,399.95 Ex Tax: $1,399.95

R&D Flex Coupling 910-029

5" Borg Warner, Hurth, Volvo and ZF Transmissions. R & D Flexible Coupling Capacity 20.The ..

$479.95 Ex Tax: $479.95

R&D Flex Coupling 910-032

5.75" Borg Warner, Newage, Hurth, Twin Disc and ZF Transmissions. Coupling Capacity 37. Th..

$949.95 Ex Tax: $949.95

R&D Flex Coupling 910-033

5.75" ZF, Hurth and Twin Disc Transmissions. R & D Flexible Coupling Capacity 37. The ..

$949.95 Ex Tax: $949.95

R&D Flex Coupling 910-044

5" Volvo, Borg Warner, Newage PRM, Hurth and ZF Transmissions. Coupling Capacity 8. The R ..

$289.95 Ex Tax: $289.95