Seablade
Key Veteran
Location: floating around
My Posts This: Topic Forum | I need to add this about my "dust cover mod" on the thrust bearing.
"I was asked if this might cause a problem and if I've flown with it.
So just to give more info in general about it. Yes to flying with it!
It works because the Thrust Bearing "upper load disc" diameter matches the diameter of the "lower shaft bearing" flange (p/n 72 @ 21mm dia.) and the "lower load disc" is even smaller.
So you shrink down to the 22mm diameter size of the "upper load disc" and not on the 18mm "lower load disc". So it does not bind up because your not shrinking down on it and it is still free to rotate.
As I said this was some plastic type of heat shrink I used.
Using the plastic heat shrink and practicing at it, you could get it to shrink down on the thickness of upper load disc and still bulge out to near full diameter of the shrink wrap just at the bottom edge/lip of the upper load disc so there would be more then enough room.
Then at the lower end of the heat shrink on the tube spacer/cover on the shaft you could shrink it down again to come close to making a tight seal, but not making a tight seal. just enough to keep it from sliding down on the spacer. So you leave it un-shrunken in the middle.
When you do this you do not aim the heat gun at the heat shrink, but only come near it with the edge of the hot air flow.
Works for me!
oh boy another edit!
Okay, thinking about it I would stay with the cheap plastic heat shrink vs. the rubber type since there IS the possibility of the spacer tube, which does rotate, creating enough friction to shrink the heat shrink some more. So...put some grease on the shaft spacer tube.
This did not/has not happened on mine, but it would be my luck if somebody went out and did this mod and that happened causing problems with the bearing and shaft.
I think the strength of the motor and strength of the shaft would overcome the plastic heat shrink if it did shrink down tight.
So in the plain english legalise that lawyers don't use...your screwed if you followed my suggestion and this did happen and your blades stopped spinning. I'm just posting something that is working for me, use it at your own risk  
"Vini, Vidi, Velcro" |
sorry for my ignorance about jokers..but what size blades do you swing with it? and also what is the max payload you can haul for 5 min?
