Why is the magnetic coupling a benefit?
Using a magnetic coupling eliminates the rotating propeller shaft and the shaft seal which are the major cause of leaks and failures with traditional thrusters. The propeller shaft seals in use today were all designed for use at or near the surface where the pressure is relatively low – they inevitably fail when subjected to the pressure of typical ROV and AUV operations (100m to 10,000m). The magnetic couplings developed by Tecnadyne not only eliminate this common cause of failure, the larger sizes are able to reliably transmit over 20hp.
