<html><head></head><body><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div>Alan,</div><div>I joined an ROV group and have found some pretty interesting thruster stuff. I think you have done the same? You can buy thrusters that are brushless and built to run in the water with no sealing. Sounds like they just epoxy the armature and replace the bushings with plastic. </div><div>Hank</div></div></body></html>