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BobbyPaulk(at)comcast.net
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 Posted: Mon Jun 28, 2010 6:10 am Post subject: Rudder Bushings |
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Guys,
Way back a guy named John Read sent me a drawing and part numbers for sintered Bronze bushings for the rudder. I bought them cheaper than you could ever buy the material to make them. Here is the address / phone. I called and found a local distributor. The drawing (.pdf ) is 1.3 megs so if you want, e-mail me off list and i will send you a copy. I have not installed them as yet but plan to at 200 hrs. or when play is detected.
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The bearings should be available from bearing distributors nationwide. The lower pivot bearing part number is SF-812-4 the upper bearing part number is SF-812-5
Though the bearings come pre-lubricated I suggest that a small quantity of molybdenum disulfide (MOS2) grease be applied to each bearing surface and to the face of each bearing flange. MOS2 grease has extremely high film strength so any wear should be very slight.
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Symmco Inc.
40 South Park Street,
Sykesville, PA 15865
Phone – 814.894.2461
Fax – 814.894.5272
Internet - www.symmco.com
DO NOT ARCHIVE.
Bobby Paulk
N131BP
Jacksonville, Fl.
[quote][b]
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JohnDRead(at)aol.com
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| Posted: Mon Jun 28, 2010 6:39 am Post subject: Rudder Bushings |
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Hi Bobby;
The advantage of the bearing scheme I designed is that aside from making the larger hole in the two bearing plates the original 4130 bushings and hardware are used. Even with minimal lubricant they should not have worn. I would appreciate a copy of the drawings too,
Regards, John
CH701 - Colorado - Jabiru 3300
Cell: 719-494-4567
Home: 303-648-3261
In a message dated 6/28/2010 8:10:43 A.M. Mountain Daylight Time, BobbyPaulk(at)comcast.net writes:
| Quote: |
Guys,
Way back a guy named John Read sent me a drawing and part numbers for sintered Bronze bushings for the rudder. I bought them cheaper than you could ever buy the material to make them. Here is the address / phone. I called and found a local distributor. The drawing (.pdf ) is 1.3 megs so if you want, e-mail me off list and i will send you a copy. I have not installed them as yet but plan to at 200 hrs. or when play is detected.
The bearings should be available from bearing distributors nationwide. The lower pivot bearing part number is SF-812-4 the upper bearing part number is SF-812-5
Though the bearings come pre-lubricated I suggest that a small quantity of molybdenum disulfide (MOS2) grease be applied to each bearing surface and to the face of each bearing flange. MOS2 grease has extremely high film strength so any wear should be very slight.
st1\:*{behavior:url(#ieooui) }
Symmco Inc.
40 South Park Street,
Sykesville, PA 15865
Phone – 814.894.2461
Fax – 814.894.5272
Internet - www.symmco.com
DO NOT ARCHIVE.
Bobby Paulk
N131BP
Jacksonville, Fl.
| Quote: |
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t href="http://www.matronics.com/Navigator?Zenith601-List">http://www.matronics.com/Navigator?Zenith601-List
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ms.matronics.com/">http://forums.matronics.com
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tp://www.matronics.com/contribution">http://www.matronics.com/contribution
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[quote][b]
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mtherr(at)yahoo.com
Guest
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| Posted: Mon Jun 28, 2010 8:03 am Post subject: Rudder Bushings |
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I would definitely like to get the drawings.
Thanks all for the information.. To Bryan.. you may be right, I have not been very dilligent at keeping it greased.
----------------------------
Michel Therrien CH601-HD, C-GZGQ
http://mthobby.pcperfect.com/ch601
http://pages.infinit.net/mthobby
--- On Mon, 6/28/10, JohnDRead(at)aol.com <JohnDRead(at)aol.com> wrote:
| Quote: |
From: JohnDRead(at)aol.com <JohnDRead(at)aol.com>
Subject: Re: Re: Rudder Bushings
To: zenith601-list(at)matronics.com
Received: Monday, June 28, 2010, 10:23 AM
Hi Bobby;
The advantage of the bearing scheme I designed is that aside from making the larger hole in the two bearing plates the original 4130 bushings and hardware are used. Even with minimal lubricant they should not have worn. I would appreciate a copy of the drawings too,
Regards, John
CH701 - Colorado - Jabiru 3300
Cell: 719-494-4567
Home: 303-648-3261
In a message dated 6/28/2010 8:10:43 A.M. Mountain Daylight Time, BobbyPaulk(at)comcast.net writes:
| Quote: |
Guys,
Way back a guy named John Read sent me a drawing and part numbers for sintered Bronze bushings for the rudder. I bought them cheaper than you could ever buy the material to make them. Here is the address / phone. I called and found a local distributor. The drawing (.pdf ) is 1.3 megs so if you want, e-mail me off list and i will send you a copy. I have not installed them as yet but plan to at 200 hrs. or when play is detected.
The bearings should be available from bearing distributors nationwide. The lower pivot bearing part number is SF-812-4 the upper bearing part number is SF-812-5
Though the bearings come pre-lubricated I suggest that a small quantity of molybdenum disulfide (MOS2) grease be applied to each bearing surface and to the face of each bearing flange. MOS2 grease has extremely high film strength so any wear should be very slight.
#yiv27073038 st1\00003a*{}
Symmco Inc.
40 South Park Street ,
Sykesville , PA 15865
Phone – 814.894.2461
Fax – 814.894.5272
Internet - www.symmco.com
DO NOT ARCHIVE.
Bobby Paulk
N131BP
Jacksonville, Fl.
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" target=_blank rel=nofollow>http://www.matronics.com/Navigator?Zenith601-List
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blank rel=nofollow>http://www.matronics.com/contribution
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[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:
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bryanmmartin
Joined: 10 Jan 2006
Posts: 1018
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| Posted: Mon Jun 28, 2010 3:35 pm Post subject: Rudder Bushings |
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I keep a spray can of white lithium grease in the hangar. It's got a little straw that sticks in the nozzle for pinpoint application. I can't recall the brand name, but it should be available at auto parts stores. I put a little dab on the hinges every so often. I use it on the piano hinges also, it goes on thin enough to wick into the hinges and leaves behind a film of grease after the solvent evaporates. I wipe off the excess before the solvent evaporates. I haven't noticed any significant wear yet after about 320 hours of flight time.
On Jun 28, 2010, at 11:59 AM, Michel Therrien wrote:
| Quote: | I would definitely like to get the drawings.
Thanks all for the information.. To Bryan.. you may be right, I have not been very dilligent at keeping it greased.
|
--
Bryan Martin
N61BM, CH 601 XL,
RAM Subaru, Stratus redrive.
do not archive.
| | - 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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_________________
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
do not archive. |
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