RunRyder RC
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 1276 views Post Reply
Home✈️Aircraft🚁HelicopterJR Heli Vibe 90/50, Sylphide 90, GSR260 › 2nd torque drive support bearing on Vibe 50
02-24-2010 12:23 PM  10 years ago
Topic Vote0Post 1
BlueGarry1

rrKey Veteran

Romford, Essex, UK

MyPosts All Forum Topic
2nd torque drive support bearing on Vibe 50
Hi Guy's

Can anyone who has fitted a second support bearing onto the torque drive shaft on a Vibe 50 tell me how they spaced the bearings on the shaft ??

If you left the original bearing in place as per the assembley manual, did you put the 2nd bearing toward the main frame or towards the tail ??

I dont have the vibe humm, but as I've got the machine stripped down for winter maintenance, I'm thinking that it wont hurt to pop on a second support bearing.

Thanks

Garry
Rave ENV Electric Beast X v3 FBL, Rave Ballistic BeastX v3, T-Rex 500 Beast X FBL
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-24-2010 12:43 PM  10 years ago
jsenicka

rrProfessor

Eagle River, WI

MyPosts All Forum Topic
I spaced them equally on the shaft.
I did not leave original as per manual, as that location is for a single bearing.
All 3 of mine have dual bearing and I have no hum issues after the change (I did on two airframes before)
Jim Senicka
Team Manager, GrandRC Flight Team
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-25-2010 06:14 PM  10 years ago
fiordaliso

rrApprentice

Bregenz/Austria

MyPosts All Forum Topic
Same here.
SHARE  PM  EMAIL  Attn:RR  Quote
02-25-2010 06:20 PM  10 years ago
Stick Twanger

rrApprentice

Honeoye Falls, NY

MyPosts All Forum Topic
I did not space them equally as I did not want the sine wave issue which has been a problem in the past.
I just biased one closer to the front.
SHARE  PM  EMAIL  Attn:RR  Quote
02-25-2010 06:33 PM  10 years ago
Gorgin4325

rrKey Veteran

Florida

MyPosts All Forum Topic
Hi guys,

I'm thinking about this mod and was wondering if the second bearing would fit on an existing tail drive shaft w/o removing the drive shaft joints? Since I used epoxy to secure those in, it would make it a hard job to remove them, and I'm being very lazy and don't want to take the boom off to look myself!!!

Any help is appreciated.

Regards,
G
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-25-2010 06:53 PM  10 years ago
BlueGarry1

rrKey Veteran

Romford, Essex, UK

MyPosts All Forum Topic
G. If you mean the silver shaft drive ends, then you can slide another bearing on without removing them, but you do need to temporarilly remove a grub screw holding the drive end onto the shaft. No big deal really.

Garry
Rave ENV Electric Beast X v3 FBL, Rave Ballistic BeastX v3, T-Rex 500 Beast X FBL
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-25-2010 09:21 PM  10 years ago
Gorgin4325

rrKey Veteran

Florida

MyPosts All Forum Topic
Thanks Garry.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-26-2010 02:19 AM  10 years ago
Parsifal

rrVeteran

Singapore

MyPosts All Forum Topic
Probably best to not space them equally on the shaft, slightly different distances from the ends are better. I think if you search for tony's post on this a while ago you can find approximate distances. Tchavei is his avatar.

Pars
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
02-26-2010 05:14 AM  10 years ago
BLUETHUNDER

rrVeteran

Glass City

MyPosts All Forum Topic
https://rc.runryder.com/t443918p1/?...bearing+spacing

https://rc.runryder.com/t442153p1/?...bearing+spacing

I spaced mine equal distance from the ends to reduce
flexing and wind up.

The TT on the Senergy N9 has the same TT bearing spacing
230 mm from each end. (see fig bottom of A24)

http://www.synergyrc.com/en/images/...ds/n9_final.pdf

https://rc.runryder.com/t463435p1/?...bearing+spacing
SHARE  PM  EMAIL  Attn:RR  Quote
02-26-2010 08:28 AM  10 years ago
BlueGarry1

rrKey Veteran

Romford, Essex, UK

MyPosts All Forum Topic
Thanks for all the feedback guy's it's been really helpfull. In the end I've set one bearing at 250mm from one end of the shaft and the second bearing at 230mm from the other end. I'll test it out this weekend if the weather holds up.

Garry
Rave ENV Electric Beast X v3 FBL, Rave Ballistic BeastX v3, T-Rex 500 Beast X FBL
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-26-2010 11:42 AM  10 years ago
DS 8717

rrProfessor

Here wishing i was somewhere else

MyPosts All Forum Topic
I added a second bearing to mine and it made no difference other than adding weight to the tail. total waste of time and money.....YOU ONLY LIVE ONCE..IF YOU LIVE IT RIGHT THATS ALL YOU NEED
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-26-2010 12:12 PM  10 years ago
jsenicka

rrProfessor

Eagle River, WI

MyPosts All Forum Topic
I had a pretty wicked humm on 2 of mine with single bearing spaced as per manual. Going to 2 bearings solved it. 3rd Vibe never had a humm to begin with, so likely could have left aloneJim Senicka
Team Manager, GrandRC Flight Team
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-26-2010 12:40 PM  10 years ago
DS 8717

rrProfessor

Here wishing i was somewhere else

MyPosts All Forum Topic
I had hum on mine also,but the second bearing did nothing to fix it.It turned out to be the fan hub not dialed in. I have a rebuilt model with the torque tube that was in the crash that took out the boom and the shaft is perfect no vibration at all. If you have a vibration or hum its not the single bearing tube,you need to look somewhere else for the problem.If you built the heli right it doesnt need a second bearing on the torque tube,i have 2 vibe 50's and they are both smooth with no hum or vibration with the single bearings.In my opinion its a waste of time to add the second bearing.YOU ONLY LIVE ONCE..IF YOU LIVE IT RIGHT THATS ALL YOU NEED
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-26-2010 01:13 PM  10 years ago
BlueGarry1

rrKey Veteran

Romford, Essex, UK

MyPosts All Forum Topic
Thanks DS8717, but it's too late now as I've already fitted the 2nd bearing and re-built my Vibe 50 after some well deserved winter maintenance. Anyhow, ballancing the shaft over 2 bearings cant hurt

Thanks again

Garry
Rave ENV Electric Beast X v3 FBL, Rave Ballistic BeastX v3, T-Rex 500 Beast X FBL
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-27-2010 03:48 AM  10 years ago
jsenicka

rrProfessor

Eagle River, WI

MyPosts All Forum Topic
I do need to re-dial 2 of my OS55's in the Vibes. Learned a bit more building number 3 and need to go back and revisit number 1 and 2. The second bearing can help the heli tolerate vibration a bit more and not exacerbate it, but DS8717 is correct in that the single bearing is not the cause of the hum in the first placeJim Senicka
Team Manager, GrandRC Flight Team
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-27-2010 04:56 AM  10 years ago
Mystic_2003

rrNovice

Willis, Tx

MyPosts All Forum Topic
Tried 2, then 3, different spacing = no difference.

My Steps in order of priority..
1. Balance the Entire Tail assembly on a prop balancer. Tower has one, shaft with 2 magnets hold the balance shaft basically in the air.
2. Check runout of fan assembly. Less than .002. Dial Indicate.
3. Check the mesh of the main gear AND the Tail drive gear, paper to set the mesh. THis is VERY Important. my Vibes came from the tail drive gear being too tight. has to replace the gears and all was fine.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-27-2010 11:14 AM  10 years ago
v58 fuy

rrVeteran

UK - Kent

MyPosts All Forum Topic
I balanced the fan hub so that it has almost no runout - this actually needed no adjustment whilst tightening up.

I run my main gear mesh a little on the loose side, and only have one bearing on the torque tube - never had any vibes or hum at all (run Radix 92mm tail blades by the way).

David
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-27-2010 11:04 PM  10 years ago
jsenicka

rrProfessor

Eagle River, WI

MyPosts All Forum Topic
where are you dialing the fan?
At back end of fan assembly mine were flawless. But front end at clutch mount was bad.
Jim Senicka
Team Manager, GrandRC Flight Team
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-28-2010 05:21 AM  10 years ago
Mystic_2003

rrNovice

Willis, Tx

MyPosts All Forum Topic
The front end where the clutch is is the must important. Think about it, this is where it mates to the clutch then to the clutch bell. So runout here is major vibes.

There is a method posted here I think or the "other site" than describes how to get it right on.

Basically,

1. Oil the Collets
2. assemble but do not tighen just snug.
3. support the back of the crankshaft, take back plate off, I use a locking tool. This is so you do not put forces on the bearings.
4. Check runout, dial indicate front hub.
5. LIGHTLY Tap the TOP of the fan hub on the side that is low. So say dial indicator shows side is low, mark with marker. Tap that side LIGHTLY with a plastic small hammer. I use a small ball peen with cardboard taped to the face so not to mar the hub..
6. check runout again, tighten a 1/4 turn.
7. check again, tap again, tighten again 1/4
8. Repeat..

Gets my runout to .005 every time.....
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-28-2010 04:53 PM  10 years ago
jsenicka

rrProfessor

Eagle River, WI

MyPosts All Forum Topic
Mystic,
thanks
Jim Senicka
Team Manager, GrandRC Flight Team
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 1276 views Post Reply
Home✈️Aircraft🚁HelicopterJR Heli Vibe 90/50, Sylphide 90, GSR260 › 2nd torque drive support bearing on Vibe 50
Print TOPIC

 6  Topic Subscribe

Saturday, November 28 - 1:22 pm - Copyright © 2000-2020 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online