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rotaryguy · 12-05-2010, 10:13 AM

Well, being sick of fighting vibes and buying TT's over and over I have decided to go with an aluminum arrow shaft, the model I am trying is gauranteed to be within .002" max..
So, I need a measurement of a stock TT, inside diameter of the Velocity tube, or better yet the outside diameter of the tube end inserts, the portion that goes inside the tube of course.
THANK YOU!

kazager · 12-05-2010, 10:43 AM

If you're having that much trouble, wouldn't a 3rd bearing in the middle fix the problem? You know, a 3 legged stool can't tip, 3 point in a line have to be straight. I just don't understand how the TT can be so far off that after going from a fixed point on each end through 2 bearings in the same line that it can be causing such serious vibes? Are you sure it isn't coming from somewhere else? I just hope your putting your effort in the right direction, that's all.

rotaryguy · 12-05-2010, 10:57 AM

Yep, im sure its the tube...I have had at least 8 TT driven trex's and I am really anal about vibes, even more so now flying vbar. The best tt I have is close, its only one end that has a little wobble and I can flip the tube and feel the vibes move following the bad end of the tt. By the way this is a trex 550 but I already know the outrage tt ends will fit into the align gears I am just trying to get the info so I can do more research with the tubing or arrow shafts.
And really, it only takes a very small amout of bend in a tt to cause some pretty bad vibes, you probably would not notice on a nitro, but a well setup smooth running electric it is very pronounced. I can add all the extra bearing supports in the world, the wobble just translates through the rubber and it wrecks the bearings.

12-05-2010, 10:13 AM	#1 (permalink)
rotaryguy Registered Users My HF Map location Join Date: Oct 2005	Need some torque tube end measurements please Well, being sick of fighting vibes and buying TT's over and over I have decided to go with an aluminum arrow shaft, the model I am trying is gauranteed to be within .002" max.. So, I need a measurement of a stock TT, inside diameter of the Velocity tube, or better yet the outside diameter of the tube end inserts, the portion that goes inside the tube of course. THANK YOU!

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12-05-2010, 10:43 AM	#2 (permalink)
kazager Registered Users Join Date: Apr 2009	If you're having that much trouble, wouldn't a 3rd bearing in the middle fix the problem? You know, a 3 legged stool can't tip, 3 point in a line have to be straight. I just don't understand how the TT can be so far off that after going from a fixed point on each end through 2 bearings in the same line that it can be causing such serious vibes? Are you sure it isn't coming from somewhere else? I just hope your putting your effort in the right direction, that's all.

12-05-2010, 10:57 AM	#3 (permalink)
rotaryguy Registered Users Thread Starter My HF Map location Join Date: Oct 2005	Yep, im sure its the tube...I have had at least 8 TT driven trex's and I am really anal about vibes, even more so now flying vbar. The best tt I have is close, its only one end that has a little wobble and I can flip the tube and feel the vibes move following the bad end of the tt. By the way this is a trex 550 but I already know the outrage tt ends will fit into the align gears I am just trying to get the info so I can do more research with the tubing or arrow shafts. And really, it only takes a very small amout of bend in a tt to cause some pretty bad vibes, you probably would not notice on a nitro, but a well setup smooth running electric it is very pronounced. I can add all the extra bearing supports in the world, the wobble just translates through the rubber and it wrecks the bearings.

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