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Old 05-26-2017, 04:50 AM   #1 (permalink)
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Default Tail blade grips

On my 600 the tail has a lot of play in the grips put new thrust berings in and rear bering and still no change anyone else having this problem
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Old 07-06-2017, 09:18 AM   #2 (permalink)
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I too have noticed a fair amount of play in some of the tail drivetrain and grips when on the bench... but once it's up in the air, I see no weird tendencies... so I don't worry about it. ;-)
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Old 02-27-2018, 05:42 PM   #3 (permalink)
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With tail rotors that have a solid hub they have to design in some slop in order to accommodate tolerance variance in the bearing and the hub and grips. If they made the fit between the bearings grips and hub all a exact a certain percentage of the tail grip sets would lock up when the screws are tightened because in the real world these components are never all exactly the same dimensions.

With tail rotors that have a spindle and dampers like the SAB goblins and the Logo 600 you can get rid of the slop because the flexible dampers allow for some preload on the bearings without overloading them. Another way to address this is how JR designed their solid tail hubs with a rubber O-ring between the hub and the grip to take up the slop.
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