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BobbyPaulk(at)comcast.net
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 Posted: Mon Oct 01, 2012 12:48 pm Post subject: Rudder Bearings |
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p { margin: 0; }p { margin: 0; }p { margin: 0; }p { margin: 0; }List
Re: 601 XL B
I am in the middle of my conditional inspection and have found what I believe to be excessive play in the rudder bearings. ( nearly 1/16" at 160 hours ). The 1/4" steel sleeve is turning in the aluminum and wearing it. ( the .187" aluminum ) . Part of the play is in the fit between the 3/16" bolt and the 1/4" steel bushing. I have kept it well lubed.
I have John Read's drawing from 2007 showing how to add Sintered Bronze Bearings ( Symmco SF812 - 4 and - 5 ) bearings. This requires boring the 1/4" hole in the aluminum to 3/8". I am concerned about the edge distance metal left after boring the hole to 3/8" OD.
I have found a 3/16" x 5/16" ( Symmco SF610 - 5 ) Sintered Bronze bearing I am planning to use. This would eliminate the 1/4" OD steel sleeve and require only a 5/16" hole in the .187 aluminum. This would still afford more bearing surface than the Steel sleeve against the .187" aluminum.
If I use this set up it would only take a few thousandths out of the already elongated hole in the aluminum.
My 2 part question is - is there a better fix available - if not is the 3/16" x 5/16" Sintered bronze bearing against the 3/16" bolt strong enough to stand the loads generated by the rudder?
Bobby ( age 74 )
Zodiac 601 XL "B"
Jabiru 3300 S/N 1141
Sensenich 64" x 51" Prop
Bing Carb 260 Main & 285 Needle Jet
Status - Flying 160 hrs.
[quote][b]
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mhubel
Joined: 05 Sep 2009
Posts: 141
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| Posted: Mon Oct 01, 2012 12:59 pm Post subject: Rudder Bearings |
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Bobby,
   I put in ball bearings. I never liked the original setup. It did not seem to be a proper bearing. There are some comments and pictures of it at www.n708hu.com
On 10/01/2012 4:47 PM, BobbyPaulk(at)comcast.net (BobbyPaulk(at)comcast.net) wrote:
[quote] p { margin: 0; } p { margin: 0; } p { margin: 0; } p { margin: 0; } p { margin: 0; } List
Re: 601 XL B
I am in the middle of my conditional inspection and have found what I believe to be excessive play in the rudder bearings. ( nearly 1/16" at 160 hours ). The 1/4" steel sleeve is turning in the aluminum and wearing it. ( the .187" aluminum ) . Part of the play is in the fit between the 3/16" bolt and the 1/4" steel bushing. I have kept it well lubed.
I have John Read's drawing from 2007 showing how to add Sintered Bronze Bearings ( Symmco SF812 - 4 and - 5 ) bearings. This requires boring the 1/4" hole in the aluminum to 3/8". I am concerned about the edge distance metal left after boring the hole to 3/8" OD.
I have found a 3/16" x 5/16" ( Symmco SF610 - 5 ) Sintered Bronze bearing I am planning to use. This would eliminate the 1/4" OD steel sleeve and require only a 5/16" hole in the .187 aluminum. This would still afford more bearing surface than the Steel sleeve against the .187" aluminum.
If I use this set up it would only take a few thousandths out of the already elongated hole in the aluminum.
My 2 part question is - is there a better fix available -Â if not is the 3/16" x 5/16" Sintered bronze bearing against the 3/16" bolt strong enough to stand the loads generated by the rudder?Â
Bobby ( age 74 )
Zodiac 601 XL "B"
Jabiru 3300 S/N 1141
Sensenich 64" x 51" Prop
Bing Carb 260 Main & 285 Needle Jet
Status - Flying 160 hrs.
--
Mark Hubelbank
NorthEast Monitoring
2 Clock Tower Place
Suite 555
Maynard, MA, 01754 - USA
mhubel(at)nemon.com (mhubel(at)nemon.com)
978-443-3955[b]
| | - The Matronics Zenith601-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith601-List |
|
_________________
Mark Hubelbank
N708HU
CH601XL
Jabiru 3300
Rotec TBI 40-3 carb
Sensenich ground adj prop.
240 hr TAF
Pictures at photo.hubbles.com |
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carlossa52(at)gmail.com
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| Posted: Mon Oct 01, 2012 1:21 pm Post subject: Rudder Bearings |
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Mark, I would be interested on that too - but I see no pertinent picture... Could you perhaps provide a direct link?Thanks Carlos SaCH601-HD, plans
On 1 October 2012 16:59, Mark Hubelbank <mhubel(at)nemon.com (mhubel(at)nemon.com)> wrote:
[quote] Bobby,
I put in ball bearings. I never liked the original setup. It did not seem to be a proper bearing. There are some comments and pictures of it at www.n708hu.com
On 10/01/2012 4:47 PM, BobbyPaulk(at)comcast.net (BobbyPaulk(at)comcast.net) wrote:
| Quote: | List
Re: 601 XL B
I am in the middle of my conditional inspection and have found what I believe to be excessive play in the rudder bearings. ( nearly 1/16" at 160 hours ). The 1/4" steel sleeve is turning in the aluminum and wearing it. ( the .187" aluminum ) . Part of the play is in the fit between the 3/16" bolt and the 1/4" steel bushing. I have kept it well lubed.
I have John Read's drawing from 2007 showing how to add Sintered Bronze Bearings ( Symmco SF812 - 4 and - 5 ) bearings. This requires boring the 1/4" hole in the aluminum to 3/8". I am concerned about the edge distance metal left after boring the hole to 3/8" OD.
I have found a 3/16" x 5/16" ( Symmco SF610 - 5 ) Sintered Bronze bearing I am planning to use. This would eliminate the 1/4" OD steel sleeve and require only a 5/16" hole in the .187 aluminum. This would still afford more bearing surface than the Steel sleeve against the .187" aluminum.
If I use this set up it would only take a few thousandths out of the already elongated hole in the aluminum.
My 2 part question is - is there a better fix available - if not is the 3/16" x 5/16" Sintered bronze bearing against the 3/16" bolt strong enough to stand the loads generated by the rudder?
Bobby ( age 74 )
Zodiac 601 XL "B"
Jabiru 3300 S/N 1141
Sensenich 64" x 51" Prop
Bing Carb 260 Main & 285 Needle Jet
Status - Flying 160 hrs.
|
[b]
| | - The Matronics Zenith601-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith601-List |
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mhubel
Joined: 05 Sep 2009
Posts: 141
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| Posted: Mon Oct 01, 2012 1:29 pm Post subject: Rudder Bearings |
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Carlos,
You are correct, they are missing. I will have to fix it.
On 10/01/2012 5:20 PM, Carlos Sa wrote:
[quote]Mark, I would be interested on that too - but I see no pertinent picture... Could you perhaps provide a direct link? Thanks Carlos Sa CH601-HD, plans
On 1 October 2012 16:59, Mark Hubelbank <mhubel(at)nemon.com (mhubel(at)nemon.com)> wrote:
| Quote: | Bobby,
I put in ball bearings. I never liked the original setup. It did not seem to be a proper bearing. There are some comments and pictures of it at www.n708hu.com
On 10/01/2012 4:47 PM, BobbyPaulk(at)comcast.net (BobbyPaulk(at)comcast.net) wrote:
| Quote: | List
Re: 601 XL B
I am in the middle of my conditional inspection and have found what I believe to be excessive play in the rudder bearings. ( nearly 1/16" at 160 hours ). The 1/4" steel sleeve is turning in the aluminum and wearing it. ( the .187" aluminum ) . Part of the play is in the fit between the 3/16" bolt and the 1/4" steel bushing. I have kept it well lubed.
I have John Read's drawing from 2007 showing how to add Sintered Bronze Bearings ( Symmco SF812 - 4 and - 5 ) bearings. This requires boring the 1/4" hole in the aluminum to 3/8". I am concerned about the edge distance metal left after boring the hole to 3/8" OD.
I have found a 3/16" x 5/16" ( Symmco SF610 - 5 ) Sintered Bronze bearing I am planning to use. This would eliminate the 1/4" OD steel sleeve and require only a 5/16" hole in the .187 aluminum. This would still afford more bearing surface than the Steel sleeve against the .187" aluminum.
If I use this set up it would only take a few thousandths out of the already elongated hole in the aluminum.
My 2 part question is - is there a better fix available - if not is the 3/16" x 5/16" Sintered bronze bearing against the 3/16" bolt strong enough to stand the loads generated by the rudder?
Bobby ( age 74 )
Zodiac 601 XL "B"
Jabiru 3300 S/N 1141
Sensenich 64" x 51" Prop
Bing Carb 260 Main & 285 Needle Jet
Status - Flying 160 hrs.
|
|
--
Mark Hubelbank
NorthEast Monitoring
2 Clock Tower Place
Suite 555
Maynard, MA, 01754 - USA
mhubel(at)nemon.com (mhubel(at)nemon.com)
978-443-3955[b]
| | - The Matronics Zenith601-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith601-List |
|
_________________
Mark Hubelbank
N708HU
CH601XL
Jabiru 3300
Rotec TBI 40-3 carb
Sensenich ground adj prop.
240 hr TAF
Pictures at photo.hubbles.com |
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| Back to top |
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mhubel
Joined: 05 Sep 2009
Posts: 141
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| Posted: Mon Oct 01, 2012 5:31 pm Post subject: Rudder Bearings |
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The additional pictures have been posted, they are numbers 1091 to 1096 in www.n708hu.com
Mark Hubelbank
Ch601XL-B
Jabiru 3300
Sensenich adj prop
Rotec TBI-40-3
240 Hours airframe
[quote][b]
| | - The Matronics Zenith601-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith601-List |
|
_________________
Mark Hubelbank
N708HU
CH601XL
Jabiru 3300
Rotec TBI 40-3 carb
Sensenich ground adj prop.
240 hr TAF
Pictures at photo.hubbles.com |
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| Back to top |
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mhubel
Joined: 05 Sep 2009
Posts: 141
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| Posted: Tue Oct 02, 2012 2:28 pm Post subject: Rudder Bearings |
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Carlos,
I believe you had asked for the dimensions of the bearing, It is 3/16 ID and 5/16 OD. The full drawing is at:
http://www.mcmaster.com/#cadinlnord/57155k16/=jjty4f
On 10/01/2012 5:20 PM, Carlos Sa wrote:
| Quote: | Mark, I would be interested on that too - but I see no pertinent picture... Could you perhaps provide a direct link? Thanks Carlos Sa CH601-HD, plans
On 1 October 2012 16:59, Mark Hubelbank <mhubel(at)nemon.com (mhubel(at)nemon.com)> wrote:
| Quote: | Bobby,
I put in ball bearings. I never liked the original setup. It did not seem to be a proper bearing. There are some comments and pictures of it at www.n708hu.com
On 10/01/2012 4:47 PM, BobbyPaulk(at)comcast.net (BobbyPaulk(at)comcast.net) wrote:
| Quote: | List
Re: 601 XL B
I am in the middle of my conditional inspection and have found what I believe to be excessive play in the rudder bearings. ( nearly 1/16" at 160 hours ). The 1/4" steel sleeve is turning in the aluminum and wearing it. ( the .187" aluminum ) . Part of the play is in the fit between the 3/16" bolt and the 1/4" steel bushing. I have kept it well lubed.
I have John Read's drawing from 2007 showing how to add Sintered Bronze Bearings ( Symmco SF812 - 4 and - 5 ) bearings. This requires boring the 1/4" hole in the aluminum to 3/8". I am concerned about the edge distance metal left after boring the hole to 3/8" OD.
I have found a 3/16" x 5/16" ( Symmco SF610 - 5 ) Sintered Bronze bearing I am planning to use. This would eliminate the 1/4" OD steel sleeve and require only a 5/16" hole in the .187 aluminum. This would still afford more bearing surface than the Steel sleeve against the .187" aluminum.
If I use this set up it would only take a few thousandths out of the already elongated hole in the aluminum.
My 2 part question is - is there a better fix available - if not is the 3/16" x 5/16" Sintered bronze bearing against the 3/16" bolt strong enough to stand the loads generated by the rudder?
Bobby ( age 74 )
Zodiac 601 XL "B"
Jabiru 3300 S/N 1141
Sensenich 64" x 51" Prop
Bing Carb 260 Main & 285 Needle Jet
Status - Flying 160 hrs.
|
|
|
Mark Hubelbank
Ch601XL-B
Jabiru 3300
Sensenich adj prop
Rotec TBI-40-3
240 Hours airframe
[quote][b]
| | - The Matronics Zenith601-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith601-List |
|
_________________
Mark Hubelbank
N708HU
CH601XL
Jabiru 3300
Rotec TBI 40-3 carb
Sensenich ground adj prop.
240 hr TAF
Pictures at photo.hubbles.com |
|
| Back to top |
|
|
carlossa52(at)gmail.com
Guest
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| Posted: Tue Oct 02, 2012 3:18 pm Post subject: Rudder Bearings |
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Mark, thanks much for all the info
Carlos
On 2 October 2012 18:28, Mark Hubelbank <mhubel(at)nemon.com (mhubel(at)nemon.com)> wrote:
[quote] Carlos,
I believe you had asked for the dimensions of the bearing, It is 3/16 ID and 5/16 OD. The full drawing is at:
http://www.mcmaster.com/#cadinlnord/57155k16/=jjty4f
On 10/01/2012 5:20 PM, Carlos Sa wrote:
| Quote: | Mark, I would be interested on that too - but I see no pertinent picture... Could you perhaps provide a direct link? Thanks Carlos Sa CH601-HD, plans
On 1 October 2012 16:59, Mark Hubelbank <mhubel(at)nemon.com (mhubel(at)nemon.com)> wrote:
| Quote: | Bobby,
I put in ball bearings. I never liked the original setup. It did not seem to be a proper bearing. There are some comments and pictures of it at www.n708hu.com
On 10/01/2012 4:47 PM, BobbyPaulk(at)comcast.net (BobbyPaulk(at)comcast.net) wrote:
| Quote: | List
Re: 601 XL B
I am in the middle of my conditional inspection and have found what I believe to be excessive play in the rudder bearings. ( nearly 1/16" at 160 hours ). The 1/4" steel sleeve is turning in the aluminum and wearing it. ( the .187" aluminum ) . Part of the play is in the fit between the 3/16" bolt and the 1/4" steel bushing. I have kept it well lubed.
I have John Read's drawing from 2007 showing how to add Sintered Bronze Bearings ( Symmco SF812 - 4 and - 5 ) bearings. This requires boring the 1/4" hole in the aluminum to 3/8". I am concerned about the edge distance metal left after boring the hole to 3/8" OD.
I have found a 3/16" x 5/16" ( Symmco SF610 - 5 ) Sintered Bronze bearing I am planning to use. This would eliminate the 1/4" OD steel sleeve and require only a 5/16" hole in the .187 aluminum. This would still afford more bearing surface than the Steel sleeve against the .187" aluminum.
If I use this set up it would only take a few thousandths out of the already elongated hole in the aluminum.
My 2 part question is - is there a better fix available - if not is the 3/16" x 5/16" Sintered bronze bearing against the 3/16" bolt strong enough to stand the loads generated by the rudder?
Bobby ( age 74 )
Zodiac 601 XL "B"
Jabiru 3300 S/N 1141
Sensenich 64" x 51" Prop
Bing Carb 260 Main & 285 Needle Jet
Status - Flying 160 hrs.
|
|
|
Mark Hubelbank
Ch601XL-B
Jabiru 3300
Sensenich adj prop
Rotec TBI-40-3
240 Hours airframe
| Quote: |
" target="_blank">http://www.matronics.com/Navigator?Zenith601-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
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BobbyPaulk(at)comcast.net
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| Posted: Fri Oct 05, 2012 7:06 am Post subject: Rudder Bearings |
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p { margin: 0; }List
I replaced the steel bushings in my rudder bearings and it took out all of the play. They are just like new.
According to engineers the edge distance on the existing hinge is at near minimums so it is NOT recommended to enlarge the holes to add bearings or bushings.
Bobby ( age 74 )
Zodiac 601 XL "B"
Jabiru 3300 S/N 1141
Sensenich 64" x 51" Prop
Bing Carb 260 Main & 285 Needle Jet
Status - Flying 154 hrs.
[quote][b]
| | - The Matronics Zenith601-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith601-List |
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