Fun, Learning, Friendship and Mutual Respect
START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > 450 Class Electric Helicopters > 450 PRO Class Electric Helicopters


450 PRO Class Electric Helicopters 450 PRO Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


Reply
 
Thread Tools Display Modes
Old 12-13-2011, 11:26 AM   #21
marke
Registered Users
 
Posts: 284
 

Join Date: May 2006
Location: Hamburg NY USA
Default

Quote:
Originally Posted by trexpro View Post
it seems I am not alone with this problem !!

It is a serious design issue of the blade grips on the 450 pro version or it's a low quality bearing problem?

All the stress and force is on the outer bearing (2x5x2.5), the only way to solve this problem for good is to use thrust bearings! the second best solution is to use high quality bearings, but those bearings are expensive and should also be checked regularly.

Anyway the use of a radial bearing with such axial loads is not good!

maybe someone knows if a replacement tail (or blade gips) with thrust bearings exists that fits the 450 pro, or are there thrust bearings that fit in the original Align 450 pro blade grips?

Regards danny
hello -i am building a brand new 450 Pro for a customer and the kit is the V2- is every one replacing the bearings in tail grips? also can any one tell me if EFLIGHT bearings are any better then Align? my LHS only has the outer bearings from EFLIGHT.

thank you for any help on this
marke is offline        Reply With Quote
Old 12-13-2011, 01:52 PM   #22
Spork01
Registered Users
 
Posts: 4,599
 

Join Date: Mar 2008
Location: Orlando, FL
Default

the align replacement bearings are working fine on mine. I believe it may be the factory assembly when they are putting the tail together that is causing the problem.
__________________
blade 130x
Fusion 550 beastX
Fusion 50 beastx
Spork01 is offline        Reply With Quote
Old 12-13-2011, 03:58 PM   #23
trexpro
Registered Users
 
Posts: 722
Thread Starter Thread Starter
 

Join Date: May 2010
Location: NL
Default

Quote:
Originally Posted by marke View Post
hello -i am building a brand new 450 Pro for a customer and the kit is the V2- is every one replacing the bearings in tail grips? also can any one tell me if EFLIGHT bearings are any better then Align? my LHS only has the outer bearings from EFLIGHT.

thank you for any help on this
I repaired my 450 tail, bearings are replaced with Protos bearings, so far so good I also upgraded my tail rotor control arm set.

i also agree with Spork01, the assemble of the bearings must be done exactly.

Dont over tighten the screws af the blade grips and be careful with loctite!
__________________
We Men Need a Second Hobby, Besides Women
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Futaba T14SG, Vbar 5.3 pro, Kontronik, Align, IKON, 3GX, Vario, WR Hercules
Mikado, Scorpion, BeastX V3, Genius, Devo 7, Hyperion, JetCat Turbine, APS, BD3SX
www.modelhelicopter-review.nl
trexpro is offline        Reply With Quote
Old 12-14-2011, 07:47 AM   #24
marke
Registered Users
 
Posts: 284
 

Join Date: May 2006
Location: Hamburg NY USA
Default

I just took apart the original bearing and they only have 6 balls in the bearing the extra bearings i have contain 7 balls- i am not sure of the manufature but i feel 7 are better then 6-also they seem to have less slop. ill let you know how they work
marke is offline        Reply With Quote
Old 12-14-2011, 09:10 AM   #25
trexpro
Registered Users
 
Posts: 722
Thread Starter Thread Starter
 

Join Date: May 2010
Location: NL
Default

Quote:
Originally Posted by marke View Post
I just took apart the original bearing and they only have 6 balls in the bearing the extra bearings i have contain 7 balls- i am not sure of the manufature but i feel 7 are better then 6-also they seem to have less slop. ill let you know how they work

Very strange that you have a difference in balls
__________________
We Men Need a Second Hobby, Besides Women
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Futaba T14SG, Vbar 5.3 pro, Kontronik, Align, IKON, 3GX, Vario, WR Hercules
Mikado, Scorpion, BeastX V3, Genius, Devo 7, Hyperion, JetCat Turbine, APS, BD3SX
www.modelhelicopter-review.nl
trexpro is offline        Reply With Quote
Old 12-14-2011, 12:29 PM   #26
marke
Registered Users
 
Posts: 284
 

Join Date: May 2006
Location: Hamburg NY USA
Default

Quote:
Originally Posted by trexpro View Post
Very strange that you have a difference in balls
i removed the shield from the Align bearings and there are 6 vs the unknown bearing i have that have 7--i wounder how many are in the boca bearings??
marke is offline        Reply With Quote
Old 12-15-2011, 09:43 AM   #27
trexpro
Registered Users
 
Posts: 722
Thread Starter Thread Starter
 

Join Date: May 2010
Location: NL
Default

Quote:
Originally Posted by marke View Post
i removed the shield from the Align bearings and there are 6 vs the unknown bearing i have that have 7--i wounder how many are in the boca bearings??
I never removed the shield from a boca bearing!
I have replaced my tail blade grip bearings with Protos bearings and I can say that they felt a lot better than the Align bearings, more robust and the feeling is smoother.
And the Protos bearings are cheaper than the Boca bearings
__________________
We Men Need a Second Hobby, Besides Women
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Futaba T14SG, Vbar 5.3 pro, Kontronik, Align, IKON, 3GX, Vario, WR Hercules
Mikado, Scorpion, BeastX V3, Genius, Devo 7, Hyperion, JetCat Turbine, APS, BD3SX
www.modelhelicopter-review.nl
trexpro is offline        Reply With Quote
Old 12-15-2011, 10:01 AM   #28
tdrnmartin
Registered Users
 
Posts: 126
 

Join Date: Nov 2007
Location: Cuyahoga Falls, Ohio
Default

A side question of sorts - does it matter what level of bearing, ie crome vs stainless vs ceramic? or is it fair to say that just about any level of after market (from boca for example) would still be a better choice than stock align? I'm thinking this is more of a "good enough to do the job" type question as i can't aford to replace all my align heli bearings with ceramic bearings and I'm not convinced that i need to. Most of the align bearings i have are still working just fine. (Non-pro v2)
__________________
Idiot non-savant
tdrnmartin is offline        Reply With Quote
Old 12-15-2011, 03:09 PM   #29
trexpro
Registered Users
 
Posts: 722
Thread Starter Thread Starter
 

Join Date: May 2010
Location: NL
Default

Quote:
Originally Posted by tdrnmartin View Post
A side question of sorts - does it matter what level of bearing, ie crome vs stainless vs ceramic? or is it fair to say that just about any level of after market (from boca for example) would still be a better choice than stock align? I'm thinking this is more of a "good enough to do the job" type question as i can't aford to replace all my align heli bearings with ceramic bearings and I'm not convinced that i need to. Most of the align bearings i have are still working just fine. (Non-pro v2)
I definitely think Align bearings are of a lower quality than, for example a Boca bearing.
but am also convinced that in many cases they work just fine, therefore i don't replace all my Align bearings only those which I think is necessary like the tail bearings and main shaft bearings. For example, in my 550 the main shaft bearings (Align) were within a few flights completely run dry and worn, so i replaced them with Boca ceramic.

Not every type of bearing is suitable for a particular function. A ceramic bearing remains cooler at higher speeds and a stainless steel bearing is more resistant to axial forces (concerns radial bearings).
Therefore a bearing must be well suited and of a certain quality for his purpose in a certain part of the helicopter.
__________________
We Men Need a Second Hobby, Besides Women
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Futaba T14SG, Vbar 5.3 pro, Kontronik, Align, IKON, 3GX, Vario, WR Hercules
Mikado, Scorpion, BeastX V3, Genius, Devo 7, Hyperion, JetCat Turbine, APS, BD3SX
www.modelhelicopter-review.nl
trexpro is offline        Reply With Quote
Old 01-05-2012, 09:26 PM   #30
lancedoze
Registered Users
 
Posts: 79
 

Join Date: Dec 2006
Location: Houma, La
Default

Just ordered boca bearings just blew out my tail and barely saved the bird. Align needs to do something different. If you want to be the best you should be the best.
__________________
DX7 4 ALL
Trex 450 pro 3GX
Trex600 cf, Jazz 80-6-18
Trex 600N, O.S. 50 Hyper

Last edited by lancedoze; 01-06-2012 at 07:35 PM..
lancedoze is offline        Reply With Quote
Old 01-10-2012, 05:51 PM   #31
Zorgnot
Registered Users
 
Posts: 528
 

Join Date: Dec 2010
Location: California
Default

I had the same issue with my HK450TT pro. I'm waiting for the bearings in the mail.
Zorgnot is offline        Reply With Quote
Old 01-12-2012, 03:39 AM   #32
isogloss3d
Registered Users
 
Posts: 710
 
My HF Map location
Join Date: Aug 2010
Location: Rockford, IL
Default

In addition to Boca bearings, I've had good success with the upgraded bearings from helidirect. There's also rcbearings.com which I've yet to try but have heard good things.
__________________
Compass Atom 6HV, KDE 600XF-530 motor, CC Ice2 HV 80, Torq Servos, BeastX
MSH Protos 500, Scorpion/YGE, Brain

TREX 450 Pro 6S, Scorpion 2010, C.C. Talon 35, MKS DS95, JR 3500G, BeastX.
DX 8
isogloss3d is offline        Reply With Quote
Old 01-12-2012, 06:30 PM   #33
shadco
Registered Users
 
Posts: 1,882
 
My HF Map location
Join Date: Dec 2011
Location: Raleigh NC
Default

Wouldn't you know the only thing tight on my new kit was the tail grip bolts, no locktite but gorilla tight.

I took them apart the bearings seem ok but I'm not sure I want to take the chance.
__________________
Synergy E5-S KDE 600XF MKS HV YGE Vbar : Compass 6HV Quantum 4125 MKS HV YGE Vbar
SAB G500 Savox 4050 KST/MKS HV JIVE 100LV VBAR
Compass Warp Scorpion 2520 MKS YGE SK540 : 130X MCPX BL Nano 14SG DX8
shadco is offline        Reply With Quote
Old 01-13-2012, 12:03 AM   #34
RyanB
Registered Users
 

Join Date: Aug 2011
Location: HB, California
Default

This is getting ridiculous... I just replaced my tail bearings for the second time this week (using boca) and the smaller outer bearing broke (center race pulled half way through) again while test hovering. Now I know that your not supposed to over tighten them, so I didn't crank them, but I did snug them up. Can someone please explain just how tight these are supposed to be? Like holding the allen wrench with two fingers or something? Am I supposed to just turn them until they stop and let the loctite hold it? Seems sketcy to me but at this point I'll try anything.

So sad, I had at least 60+ perfect flights on this thing then after a small crash I can't even get a whole flight without a bearing failure.
RyanB is offline        Reply With Quote
Old 01-15-2012, 08:45 AM   #35
wangotaco
Registered Users
 

Join Date: Dec 2009
Location: usa, texas, parker
Default 450 pro align v2 failure

I thought I should chime in. I had the same failure on my 450. Brand new build. Could not get the tail to hold. On the ground it would act like everything was working ok. In the air the tail just wouldn't hold. Many different symptoms. After disassembly of the tail it was apparent that the bearings were shot. I couldn't get the bearings at the lhs, but, I got a new tail. Everything is working really good right now.

A previous poster noticed that the bearings were glued in. I noticed that as well. Very difficult to get out the bigger pieces (the smaller ones just fell right out)..

This was a frustrating problem. I tried everything before taking the tail apart (flip grips, new tail servo, changing ball distance). I'm glad this thread was there to find my problem!
wangotaco is offline        Reply With Quote
Old 02-01-2012, 08:04 PM   #36
matt713
Registered Users
 
Posts: 133
 

Join Date: Jan 2012
Location: Saint Augustine, FL.
Default

I experienced the bearing failure this afternoon on my new pro V2. Was on my 6th overall flight today and about 3 minutes into my flight out of no where my tail started to wag very bad. I have been so happy with the way this tail has been so solid during the first 5 flights (especially coming from a blade 450 which the tail was so unstable and why I purchased an align) that I thought to myself OH NO.... Not another tail problem with this heli too!

So after looking at things I found that one of my tail grip bearings disintegrated (the 5x2.5) I am happy that I found the problem and thankful I didn't crash cause I'm a noob and throwing any other unexpected obstacles during me flying usually does not end up in my favor!! Lol
matt713 is offline        Reply With Quote
Old 02-11-2012, 04:23 PM   #37
Mac796
Registered Users
 

Join Date: May 2011
Location: Long beach, ca
Default

Align should biy this junker back. Im going on my second set of tail bearings. I crashed when the tail locked up the first time.
Mac796 is offline        Reply With Quote
Old 02-11-2012, 05:33 PM   #38
trexpro
Registered Users
 
Posts: 722
Thread Starter Thread Starter
 

Join Date: May 2010
Location: NL
Default

Sorry to hear Mac 796,
I replaced them with Protos bearings, so far so good
But be careful, the assemble of the bearings must be done exactly.
Dont over tighten the screws af the blade grips and be careful with loctite!

I now check after every flight my tail blade grips (my confidence in this tail configuration is no longer what it was)

regards Danny
__________________
We Men Need a Second Hobby, Besides Women
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Futaba T14SG, Vbar 5.3 pro, Kontronik, Align, IKON, 3GX, Vario, WR Hercules
Mikado, Scorpion, BeastX V3, Genius, Devo 7, Hyperion, JetCat Turbine, APS, BD3SX
www.modelhelicopter-review.nl
trexpro is offline        Reply With Quote
Old 02-11-2012, 05:40 PM   #39
flynot2000
Registered Users
 

Join Date: May 2006
Location: Phoenix, Az
Default Count me in

read the threads and so decided to inspect/replace before it happened, and in removing the first one, it just disintegrated, and I don't think I saw all of the little bearings in there either. I heated up the second before extraction (used gas stove, lol) and the second one came out whole, but I chucked it anyways. Replaced the inners also, we'll see how long they last. Have nice new bearings coming for the parts bag soon too.
__________________
Trex 500 EFL PRO / PRTOS 500 CF / Trex 450 Pro V2
BeastX / mCPx / JR11x
flynot2000 is offline        Reply With Quote
Old 02-11-2012, 05:47 PM   #40
yosemite
Registered Users
 
Posts: 487
 
My HF Map location
Join Date: Jan 2011
Location: Yosemite, CA
Default

just saw this thread and same thing happened to me on the new v2 tail i got in a kit
http://www.helifreak.com/showthread.php?t=383723
yosemite is offline        Reply With Quote
Reply




Unregistered
Go Back   HeliFreak > R/C Helicopter Support > 450 Class Electric Helicopters > 450 PRO Class Electric Helicopters


450 PRO Class Electric Helicopters 450 PRO Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Copyright © 2004-2011 - William James - Helifreak.com