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Old 4-Feb-2018, 6:33 PM   #2
Retired A/V Tech
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,738

Hello, jerry

What you have up there is too much for that little rotator. If you must use a small rotator, you should use a thrust bearing, also called an alignment bearing. They are a necessary item, but most manufacturers have discontinued them.

The trick is to get the rotator and bearing in alignment so that the axis of rotation of the bearing is the same distance away from the mast as the axis of rotation of the motor.

DXEngineering sells the Yaesu Rotator Mast Bearing GS-050

You would have to be handy with tools to make it work.

For that much antenna you need a ham rotator, but they are more expensive.
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File Type: jpg CM9523bearing.jpg (131.1 KB, 2717 views)
If you can not measure it, you can not improve it.
Lord Kelvin, 1883

Last edited by rabbit73; 4-Feb-2018 at 7:20 PM.
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