RunRyder RC
 1  Topic Subscribe
WATCH
 1 page 722 views
Scorpion Power Scorpion Power
Helicopter
e-
Align
T-REX 600 › Tail shaft bearing goes splat
08-09-2007 06:33 PM  10 years agoPost 1
helimatt

rrElite Veteran

Lafayette, IN

My Posts: All  Forum  Topic

Flew my 600E last night, tail was acting a little funny on the second flight (I had not flow for a couple weeks, so maybe I was squirrley), kinda loose like.

I land, and notice during spool-down that the tail rotor was a little out of plane, wobbling some. Tear-down of the tail revealed that the bearing closest to the slider was completely shot- no balls, no cage, just inner and outer races (what was left), etc. Surprised the heli handled as well as it did. By the way, the Trex 450 main shaft bearings are the same ID, but different OD (dang-it Align! You could have made these compatible!). I had a spare assembly so okay I can fly again today.

Anyone else had this bearing give up? Mines never crashed, no tail strikes, I run my belt very loose, and maybe, oh, 50 flights total.

I will upgrade to better bearings, anyone have suggestions there as well?

Just for fun I'll post picture later tonight, but we all know what a disintegrated bearing looks like I guess.

Never, ever, ever, ever give up.

PM  EMAIL  Attn:RR  Quote
08-09-2007 07:58 PM  10 years agoPost 2
airboss

rrElite Veteran

OC ,california

My Posts: All  Forum  Topic

the align bearings are not high quality but work fine,new set is only about $16 and you get a few others.

Urukay HPS3 KSE 700 HPS3

PM  EMAIL  GALLERY  Attn:RR  Quote
08-09-2007 11:49 PM  10 years agoPost 3
helimatt

rrElite Veteran

Lafayette, IN

My Posts: All  Forum  Topic

I haven't seen a whole set for $16- just the pairs and fours in packages for around $6.00 or so.

My point is that I don't want to have this happen, I'd gladly pay for a really good bearing- next time it may not turn out so well. I will probably just go aftermarket, ceramic.

Guys and Gals, check your Trex 600 tail bearings if you're running the belt drive version!

Never, ever, ever, ever give up.

PM  EMAIL  Attn:RR  Quote
08-10-2007 12:25 AM  10 years agoPost 4
airboss

rrElite Veteran

OC ,california

My Posts: All  Forum  Topic

even the good bearing and especially the ceramic still break down if stressed.i did try aftermarket bearings in my trex but could not notice any benefit,and the cost is crazy.keep em lubed and clean and inspect regularly.you may have impropper belt tension.

Urukay HPS3 KSE 700 HPS3

PM  EMAIL  GALLERY  Attn:RR  Quote
08-10-2007 03:48 AM  10 years agoPost 5
helimatt

rrElite Veteran

Lafayette, IN

My Posts: All  Forum  Topic

Well, if I am accused of anything, its that the belt is too loose. Never slips or skips, but certainly not overstressing the bearing from the belt.

However, I wonder if the clamp pressure on the tail case was too tight on the bearings. I was careful when assembling it with the new bearing that it was only just tight enough to prevent the shaft from having play. It did not completely draw the sides of the case together- and that is the way I have it right now. Time will tell.

I am not the first owner of the heli and though he claimed no crashes and low number of flights, he could have been leaving out some of the heli's history.

Never, ever, ever, ever give up.

PM  EMAIL  Attn:RR  Quote
08-10-2007 03:41 PM  10 years agoPost 6
airboss

rrElite Veteran

OC ,california

My Posts: All  Forum  Topic

get yourself the new metal tail housing,it looks good and works better than the plastic.

Urukay HPS3 KSE 700 HPS3

PM  EMAIL  GALLERY  Attn:RR  Quote
08-11-2007 07:00 AM  10 years agoPost 7
HHawk

rrVeteran

Gardnerville Nv.

My Posts: All  Forum  Topic

50 flights is alot more than I got out of my original plastic tail. Consider yourself lucky. The type of flying you do is also a factor, for me anyway. The metal tail case is easier on the bearings and not so sensitive to over tightening And to top that off, the torque tube metal unit is really a step above. Really sweet! Theres always something....I am looking forward to trying the new Quick tail grips and hub that is getting good reviews in comparison to the thrusted tail from Align.

PM  EMAIL  GALLERY  Attn:RR  Quote
08-11-2007 04:14 PM  10 years agoPost 8
helimatt

rrElite Veteran

Lafayette, IN

My Posts: All  Forum  Topic

I'm goning to stick with the plastic hub for now, and be more careful about not putting excessive clamp loads on the bearings as I stated above. Thanks for the feedback everyone. Metal sounds great but I'm saving my pennies for trying out different main blades and upgrading the gyro next summer (have a 401/9254 in there now- anyone got a suggestion for making the piro rate more constant in FF?)

I have heard of issues with the torque tube setup like vibration (manageable with careful build I suppose) and drive gears somewhat fragile. The belt is working well for me, again maybe in the future, but more likely I'd sell the 600 and go for a Razor.

Never, ever, ever, ever give up.

PM  EMAIL  Attn:RR  Quote
WATCH
 1 page 722 views
Scorpion Power Scorpion Power
Helicopter
e-
Align
T-REX 600 › Tail shaft bearing goes splat
 Print TOPIC  Make Suggestion 

 1  Topic Subscribe

Friday, November 17 - 7:05 pm - Copyright © 2000-2017 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online