R&D Marine 5″ Short Solid Half Coupling Pilot Bored

This solid half coupling is machined from solid steel and mates with the gearbox output coupling to connect a boat propeller shaft to the gearbox, usually via a flexible coupling. This solid shaft half coupling is pilot bored and needs to be machined to suit the boat propeller shaft diameter. Typical applications include: 5″ nominal gearbox flanges of PRM, Borgwarner Velvet Drive, ZF, Hurth, Technodrive and Volvo gearboxes. Replaces PRM coupling MT771. Coupling dimensions: a – Flange outside diameter = 5.00″ b – Hole pitch circle = 4.25″ c – Number of holes = 4 d – Hole size = 0.44″ e – Register diameter = 2.50″ male f – Coupling length = 2.16″ g – Coupling boss diameter = 3.3″ h – Pilot bore diameter: 19mm (for customer machining to parallel or taper as required.) R & D Marine Solid type shaft coupling number 202-027 Pilot Bored