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Front Axle Reference Info

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bcondrey

Joined: 03 Apr 2006
Posts: 580

Posted: Fri Aug 11, 2006 6:38 am Post subject: Front Axle Reference Info

Since some of us are visual people and might not have this part of the

kit yet, attached is the manual illustration of the front wheel attach

for reference.



Tim: along the lines of your set screw suggestion, somebody also

suggested drilling a hole through the nose fork, match drilling into the

axle, and installing a flat head screw to keep the axle from spinning.

This, along with your screws through the spacers/axles would seem to

guarantee the stability of the assembly and eliminate the need for the

washers (and associated trimming).  Thoughts?



Bob0

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Tim(at)MyRV10.com
Guest

Posted: Fri Aug 11, 2006 7:17 am Post subject: Front Axle Reference Info

Exactly.  I think if you did a proper placement of a set screw from

the fork outside, you could drill into both the spacer and the

axle simultaneously, which would keep them both from turning and

then you wouldn't need the 2 screws I did.  I just did this because

I have a whole set of new parts coming and didn't yet want to drill

my already compromised fork...since I have that groove worn into

them.  I'm not as confident adding one more hole.  If I had brand

new forks, I would have absolutely done it...but not until I've

seen the new spacer.

Tim Olson - RV-10 N104CD - Flying



Condrey, Bob (US SSA) wrote:

 	  Quote: 	
		   Since some of us are visual people and might not have this part of the

 kit yet, attached is the manual illustration of the front wheel attach

 for reference.

 

 Tim: along the lines of your set screw suggestion, somebody also

 suggested drilling a hole through the nose fork, match drilling into the

 axle, and installing a flat head screw to keep the axle from spinning.

 This, along with your screws through the spacers/axles would seem to

 guarantee the stability of the assembly and eliminate the need for the

 washers (and associated trimming).  Thoughts?

 

 Bob 

 

 

 

 ------------------------------------------------------------------------

rvbuilder(at)sausen.net
Guest

Posted: Fri Aug 11, 2006 7:55 am Post subject: Front Axle Reference Info

Thanks Bob, I should have looked for the reference diagram in the first

place.  This is just messed up on a couple of levels.  Tim is definitely

right, without something to lock everything in place, and let the

bearings do their job, something is going to wear eventually.  Throw in

dissimilar metal hardness's and it's going to happen a lot faster.



Michael Sausen

RV-10 #352 Buildus Interuptus due to moving



--

bcondrey

Joined: 03 Apr 2006
Posts: 580

Posted: Fri Aug 11, 2006 7:57 am Post subject: Front Axle Reference Info

Just talked with Vans - apparently the new aluminum spacer part number

is U-1023, not sure what the original stainless steel spacer part number

was.  They said aluminum version has been shipping in finish kits for a

little while now.  They are sending me a pair of the aluminum spacers at

no charge.   Nobody seems to know why a letter or service bulletin

wasn't issued.



Bob 



--

jwik(at)crary.com
Guest

Posted: Fri Aug 11, 2006 8:00 am Post subject: Front Axle Reference Info

In our business we have a lot of assemblies with dual bearing 

applications.  High speed rotor fans and chipper rotors,  but also some 

low rpm wheel hubs.

Our experience is that the best solution to all related problems with 

shafts and bearings,  is if the bearing races are trapped  on both 

sides  and the stack up of spacers inside and outside of the bearings 

are loaded so the races and spacers have no inclination to rotate.  



Rather than an internal spacer we would typically machine a internal 

step on the shaft (Axle). 

The spacer or step on the inside might be a problem in standardizing if 

there is much variability in wheels. It would be a better approach than 

a spacer however if the wheel hub doesn't provide enough dimension for a 

separate spacer becaus it doesen't take much of a step to effectively 

stop the race.



The difficulty with a set screw or bolt,  could be one of structural 

integrity,  but maybe even more so getting the perfect positioning of 

those holes.  you can still end up with too much play or too much 

pre-load on the bearings.



Tim Olson wrote:

 	  Quote: 	
		   



 Exactly.  I think if you did a proper placement of a set screw from

 the fork outside, you could drill into both the spacer and the

 axle simultaneously, which would keep them both from turning and

 then you wouldn't need the 2 screws I did.  I just did this because

 I have a whole set of new parts coming and didn't yet want to drill

 my already compromised fork...since I have that groove worn into

 them.  I'm not as confident adding one more hole.  If I had brand

 new forks, I would have absolutely done it...but not until I've

 seen the new spacer.

 Tim Olson - RV-10 N104CD - Flying



 Condrey, Bob (US SSA) wrote:

> Since some of us are visual people and might not have this part of the

> kit yet, attached is the manual illustration of the front wheel attach

> for reference.

>

> Tim: along the lines of your set screw suggestion, somebody also

> suggested drilling a hole through the nose fork, match drilling into the

> axle, and installing a flat head screw to keep the axle from spinning.

> This, along with your screws through the spacers/axles would seem to

> guarantee the stability of the assembly and eliminate the need for the

> washers (and associated trimming).  Thoughts?

>

> Bob

> ------------------------------------------------------------------------

>

Tim(at)MyRV10.com
Guest

Posted: Fri Aug 11, 2006 8:19 am Post subject: Front Axle Reference Info

The old part number was the same, U-1023....they just changed the

piece that they were sending from thin stainless to thick

aluminum.  I haven't seen the new parts first-hand yet, but

I understand that they are shipping new kits with the new ones.

Me being kit # 170, and only 42 flying right now though, point to

the fact that there will be at least 130 people affected.



Tim Olson - RV-10 N104CD - Flying

do not archive

Condrey, Bob (US SSA) wrote:

[quote] 

 

 Just talked with Vans - apparently the new aluminum spacer part number

 is U-1023, not sure what the original stainless steel spacer part number

 was.  They said aluminum version has been shipping in finish kits for a

 little while now.  They are sending me a pair of the aluminum spacers at

 no charge.   Nobody seems to know why a letter or service bulletin

 wasn't issued.

 

 Bob 

 

 --

Tim(at)MyRV10.com
Guest

Posted: Fri Aug 11, 2006 8:31 am Post subject: Front Axle Reference Info

You point out one of the flaws I saw with my current fix, that

I saw before I did it.  If you pin the spacers to the axle

with screws like I did, you need to ensure that the spacers

would still be able to be tightened on the bearing, and

that means you'd have to tighten the assembly before inserting

the screws, because the spacers will move until you're done

torquing the axle bolt.   This means the hole in the spacer

side will probably have to be a pretty loose fit.  So it

is far from perfect.   Attacked from the outside of the fork

it would be better.   And you're right, things won't rotate

until there is some severe rotational load, and at that point

those screws could snap....of course, at that point your

spacers are spinning again too, so you have bigger problems.

Structural integrity is a big one, but on this particular

spacer and axle, there isn't really anything being stressed

that would crack.  Drilling through the fork though would

be one to think about thoroughly to make sure you consider

the forces involved...that's why I am hesitant to drill

mine that are already possibly weakened.



You absolutely have the right points though in your

first couple of paragraphs....ideally we'd trap the

races, and have stepped shafts.  I would think that

this wouldn't be too hard to do.  With luck maybe

we'll either see a future change from Vans, or we'll

see someone like Mike at Cleaveland come up with an

entire retrofit kit that will provide a better solution.

I will be satisfied when I am assured I'll never wreck

another fork and can hopefully keep the inner bearing

race from spinning...at that point I hope my nosewheel

sees so much more air time than ground time that

it just lasts as long as the plane does.



Tim Olson - RV-10 N104CD - Flying

do not archive

Jay Wik wrote:

 	  Quote: 	
		   

 

 In our business we have a lot of assemblies with dual bearing 

 applications.  High speed rotor fans and chipper rotors,  but also some 

 low rpm wheel hubs.

 Our experience is that the best solution to all related problems with 

 shafts and bearings,  is if the bearing races are trapped  on both 

 sides  and the stack up of spacers inside and outside of the bearings 

 are loaded so the races and spacers have no inclination to rotate. 

 Rather than an internal spacer we would typically machine a internal 

 step on the shaft (Axle). The spacer or step on the inside might be a 

 problem in standardizing if there is much variability in wheels. It 

 would be a better approach than a spacer however if the wheel hub 

 doesn't provide enough dimension for a separate spacer becaus it 

 doesen't take much of a step to effectively stop the race.

 

 The difficulty with a set screw or bolt,  could be one of structural 

 integrity,  but maybe even more so getting the perfect positioning of 

 those holes.  you can still end up with too much play or too much 

 pre-load on the bearings.

 

 

 

 Tim Olson wrote:

> 

>

> Exactly.  I think if you did a proper placement of a set screw from

> the fork outside, you could drill into both the spacer and the

> axle simultaneously, which would keep them both from turning and

> then you wouldn't need the 2 screws I did.  I just did this because

> I have a whole set of new parts coming and didn't yet want to drill

> my already compromised fork...since I have that groove worn into

> them.  I'm not as confident adding one more hole.  If I had brand

> new forks, I would have absolutely done it...but not until I've

> seen the new spacer.

> Tim Olson - RV-10 N104CD - Flying

>

> Condrey, Bob (US SSA) wrote:

>> Since some of us are visual people and might not have this part of the

>> kit yet, attached is the manual illustration of the front wheel attach

>> for reference.

>>

>> Tim: along the lines of your set screw suggestion, somebody also

>> suggested drilling a hole through the nose fork, match drilling into the

>> axle, and installing a flat head screw to keep the axle from spinning.

>> This, along with your screws through the spacers/axles would seem to

>> guarantee the stability of the assembly and eliminate the need for the

>> washers (and associated trimming).  Thoughts?

>>

>> Bob

>>

>>

>> ------------------------------------------------------------------------

>>

>

>

>

bcondrey

Joined: 03 Apr 2006
Posts: 580

Posted: Fri Aug 11, 2006 8:52 am Post subject: Front Axle Reference Info

Tim,



Actually it's a little more complicated than that.  Kit numbers only

reflect where you were in line when you ordered the tail kit.  Any other

kit would be dependent on the date it was shipped from Van's.  I didn't

ask exactly when they started shipping the new version of U-1023.



Bob



--

Tim(at)MyRV10.com
Guest

Posted: Fri Aug 11, 2006 9:27 am Post subject: Front Axle Reference Info

Ah yes, I forgot about that.  You're absolutely right.

Tim

do not archive



Condrey, Bob (US SSA) wrote:

 	  Quote: 	
		   

 

 Tim,

 

 Actually it's a little more complicated than that.  Kit numbers only

 reflect where you were in line when you ordered the tail kit.  Any other

 kit would be dependent on the date it was shipped from Van's.  I didn't

 ask exactly when they started shipping the new version of U-1023.

 

 Bob

dlm46007(at)cox.net
Guest

Posted: Fri Aug 11, 2006 9:29 am Post subject: Front Axle Reference Info

I just spoke to Van's and they switched to aluminum early in the finish kit 

shipments so check your spacers before calling.

---

Tdawson(at)avidyne.com
Guest

Posted: Fri Aug 11, 2006 9:40 am Post subject: Front Axle Reference Info

Well, we've got a good "forum" topic for our first RV-10 fly-in

gathering!  : )



TDT

do not archive

--

speckter(at)comcast.net
Guest

Posted: Fri Aug 11, 2006 9:58 am Post subject: Front Axle Reference Info

I tried to order the spacers from Van's just now.  they insisted that they only shipped out very few stainless spacers before they switched.  thus they wanted to charge me for the new ones.  It took some talking to convince her that even though the part # were the same I had the SS ones.

 Left Hand meet Right hand

 Gary

 40274

  

 [quote]-------------- Original message -------------- 

From: "David McNeill" <dlm46007(at)cox.net> 



[quote] --> RV10-List message posted by: "David McNeill" 

 

 I just spoke to Van's and they switched to aluminum early in the finish kit 

 shipments so check your spacers before calling. 

 ---

henkjan(at)zme.nl
Guest

Posted: Fri Aug 11, 2006 10:57 am Post subject: Front Axle Reference Info

I have 40355 and still the SS spacers, they are no good!  

   

Henkjan van der Zouw!  

   

   

-----Oorspronkelijk bericht-----

 Van: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] Namens speckter(at)comcast.net

 Verzonden: vrijdag 11 augustus 2006 19:57

 Aan: rv10-list(at)matronics.com

 Onderwerp: Re: Front Axle Reference Info  

     

I tried to order the spacers from Van's just now.  they insisted that they only shipped out very few stainless spacers before they switched.  thus they wanted to charge me for the new ones.  It took some talking to convince her that even though the part # were the same I had the SS ones.  

    

Left Hand meet Right hand  

    

Gary  

    

40274  

    

   

  [quote]  

-------------- Original message -------------- 

 From: "David McNeill" <dlm46007(at)cox.net> 

 

 > --> RV10-List message posted by: "David McNeill" 

 > 

 > I just spoke to Van's and they switched to aluminum early in the finish kit 

 > shipments so check your spacers before calling. 

 > ---

Tim(at)MyRV10.com
Guest

Posted: Fri Aug 11, 2006 12:03 pm Post subject: Front Axle Reference Info

Perhaps a few people can identify when they got their Finishing kit,

and we can figure out the approximate timeframe from that.

Mine was I think March or April 2005 if I remember right, so

at least at that point they were SS.



Anyone get their finishing kit last year in August care to pipe in?



Tim Olson - RV-10 N104CD - Flying

do not archive

Henkjan van der Zouw wrote:

 	  Quote: 	
		   I have 40355 and still the SS spacers, they are no good!

 

  

 

 Henkjan van der Zouw!

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