Bruntons
SigmaDrive is a brand new 21st Century solution that is already an award winner
and provides effective anti-noise and anti-vibration solutions of the highest
order. SigmaDrives are designed to fit virtually all boats from yachts to
workboats, canal narrow boats to military vessels; in fact pretty much any
powered vessel with engines up to 1300hp.
Thrust
taken up on the engine from the propeller invariably changes the angle of the
shaft line, particularly when the engine uses soft rubber mounts. Using a
single SigmaDrive replacement coupling will ensure the shaft is correctly
aligned at all times, especially under high load. The result, reductions in
many cases of around 50% in noise and vibration. The SD standalone unit that
resists the propeller thrust compensating for up to 3 degrees in all
directions.