4" R&D bobbin coupling (ZF, PRM, Hurth, Borg Warner Etc.) 9102 a - Flange outside diameter

a - Flange outside diameter = 4

5hp per 100rpm # Bolts 2 Type Lister Petter Flange 4" Bolt Circle 3" Register n/a Coupling Diameter 4

- Diameter: 101

SAILDRIVE – PROVEN PERFORMANCE:

The Ultraflex B85 is a single lever / dual action control to operate both throttle and shift

4" R&D bobbin coupling (ZF, PRM, Hurth, Borg Warner Etc.) 9102 a - Flange outside diameterA 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