R&D Marine
202-027 R&D 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.)