Rotator

[Jerry Durand]

This is re our Mirror Ball Rotator product.

Since I've had a couple of questions from riggers on how the eyebolt is
supported, there's a coupling with a shoulder mounted in a ball
bearing. The eyebolt is screwed into this coupling past the bearing
where a setscrew is run into a flat ground on the eyebolt threads. Red
thread locker on the eyebolt and the setscrew.

Links to pictures of the coupling below, the set screw (not shown) comes
in from the side.

The coupling is made of 2024-T3 aircraft aluminum. As is probably
obvious from the picture, the motor shaft slides axially into this,
there's no load other than torque on the motor. The coupling is made by
me in our shop. As the Rotator only has a 10KG WLL I'm not worried
about stress on the coupling or the bearing.

The bearing: Deep groove ball bearing with a WLL of 100+ pounds in the
axial direction. It's captured in the motor bracket and rests directly
on the inside of the enclosure. The WLL is only for wear, the actual
damage number is in excess of 400 pounds.

Coupling pictures:
http://interstellar.com/photos/Lathe/Coupling-1.JPG
http://interstellar.com/photos/Lathe/Coupling-2.JPG

--
Jerry Durand, Durand Interstellar, Inc. www.interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype: jerrydurand