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R&D Marine 4" Bobbin Shaft Coupling 808004

R&D Marine 4" Bobbin Shaft Coupling 808004

SKU:808004

Regular price £241.00
Regular price £261.95 Sale price £241.00
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A bobbin coupling is a double flange coupling, which is used to extend the boat propeller shaft. They can also be used for making a double flexible coupling with two R&D type flexible couplings. This can provide excellent noise and vibration control, at a very reasonable price. The 4" R&D bobbin coupling is machine from steel, and the flange will suit many of the most popular marine gearboxes, including 4" nominal gearbox flanges of PRM, Borgwarner Velvet Drive, ZF, Hurth and Technodrive gearboxes. Bobbin coupling dimensions: a - Flange outside diameter = 4.00" b - Hole pitch circle = 3.25" c - Number of holes = 4 d - Hole size = 10mm e - Register diameter = 2.50" male on one flange & female on the other f - Bobbin coupling length = 3.44" g - Bobbin neck diameter = 2.25" Bobbin Shaft Coupling Dimensions Diagram R & D Marine Bobbin shaft coupling spacer number 202-169
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