Extra part with Microheli anti collar

[Bustinstuff]

What's the purpose of the extra ring with screw that comes with the anti collar?
Installed and works fine without the extra part.

Thanks,
Dave

[44SkyHi]

It's a replacement for the small plastic collar that positions the main rotor-shaft vertically.

On the metal collar that's made by RakonHeli, there is a bit of a step-down on the “bottom” of it. When this collar is on the shaft, the step should be facing downward, touching the frame’s upper main-shaft bearing. If the step is facing up, toward the swashplate, the entire shaft will have excessive up-and-down movement, which can contribute to TBE.

I don't think there is an analogous "step-down" on the Microheli collar, so when you're placing it on the main-shaft, make sure that it ends up holding the shaft in the frame so that there is no vertical movement of the shaft, whatsoever.

[Bustinstuff]

Originally Posted by 44SkyHi

It's a replacement for the small plastic collar that positions the main rotor-shaft vertically.

On the metal collar that's made by RakonHeli, there is a bit of a step-down on the “bottom” of it. When this collar is on the shaft, the step should be facing downward, touching the frame’s upper main-shaft bearing. If the step is facing up, toward the swashplate, the entire shaft will have excessive up-and-down movement, which can contribute to TBE.

I don't think there is an analogous "step-down" on the Microheli collar, so when you're placing it on the main-shaft, make sure that it ends up holding the shaft in the frame so that there is no vertical movement of the shaft, whatsoever.

Thanks, I see it now.