Description
Shaft Shark Saildrive Model – Protect your drive train and propeller with the best rope, line and debris cutter there is.
The SHAFT SHARK is a serrated edge circular blade machined from high quality 316L type stainless steel. It attaches to your shaft just forward of the propeller and rotates with the shaft or saildrive hub, cutting away any rope, weed or debris that might try to entangle your shaft & propeller. The SHAFT SHARK is a two-piece / split unit and may be installed on both shafts and saildrive systems.
- Keep your propeller free from rope, weeds and underwater debris
- Eliminate the possibility of damage to your propeller, strut and cutlass
- Eliminate the need for being towed due to fouled stern gear or propeller
Installation
The SHAFT SHARK for saildrives is installed on the clean saildrive propeller hub with the cutting blade facing forward and the lock bolts aft. It is not required to remove the propeller for installation, nor is it necessary to remove or modify the saildrive leg zinc. The Shaft Shark is kept securely in place by the clamp action of two allen-head bolts using Vibra-Tite VC-3 or Loctite on the screws/bolts.
See complete instructions here before installing your Shaft Shark.
Drag
The SHAFT SHARK is sized to both the shaft diameter and the propeller hub diameter to ensure the lowest drag factor for the boat. Overall drag will vary depending upon the speed of the boat … the propeller hub diameter and the size of the SHAFT SHARK installed. This is why there are different model units to suit the shaft and hub combinations.
Maintenance
With no moving parts maintenance is minimal. There are no moving parts to maintain or replace on an annual basis. The edges can be re-sharpened when necessary. Do NOT use a wire brush or like to clean the shaft shark as it may compromise the outer surface area.
Torque Requirements
Shaft Shark Fasteners Torque for A4 Metric Stainless Steel
| Model |
Fastener Size |
lbs Per Inch |
Allen Wrench Size |
| Saildrive 563, 585T |
M6 |
60.3in-lbs |
use 5mm Allen wrench |
| Saildrive 693-697 |
M6 |
60.3in-lbs |
use 5mm Allen wrench |
| Saildrive 673.6 – 680, 792 |
M8 |
146.2in-lbs |
use 6mm Allen wrench |
Download the Shaft Shark Installation Instructions as a PDF
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