 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
Dana
Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA
|
 Posted: Sun Apr 13, 2008 9:22 am Post subject: Ultrastar drive belt |
 |
|
The drive belts on my Cuyuna powered Ultrastar are a pair of 280J10 poly-v
belts. These are no problem to obtain, of course, but using a pair of
belts like that isn't always the greatest idea unless they're exactly
matched, preferably from the same production lot. It occurs to me that a
single 280J20 belt (same belt, twice as wide) might be a better choice...
it's harder to find but it IS available. The original US manual refers to
two belts, though... I wonder why? Could it be just availability? Or
some other reason? There's no real difference; the belts are manufactured
very wide and slit to the required width.
A 220J20 belt is $23, while 220J10's are $19 each... though I have an open
account with McMaster, who stocks the 10's but not the 20's...
-Dana
--
+REAL+ programmers use EDLIN to create Windows apps
| | - The Matronics Kolb-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?Kolb-List |
|
|
|
| Back to top |
|
 |
slyck(at)frontiernet.net
Guest
|
| Posted: Sun Apr 13, 2008 9:43 am Post subject: Ultrastar drive belt |
|
|
In industrial usage (back when I worked for a living) I found that
cog or notch style belts
were more efficient and outlasted plain Vs. Would something like this
be available for your
application?
BB
On 13, Apr 2008, at 1:16 PM, Dana Hague wrote:
| Quote: |
The drive belts on my Cuyuna powered Ultrastar are a pair of 280J10
poly-v belts. These are no problem to obtain, of course, but using
a pair of belts like that isn't always the greatest idea unless
they're exactly matched, preferably from the same production lot.
It occurs to me that a single 280J20 belt (same belt, twice as
wide) might be a better choice... it's harder to find but it IS
available. The original US manual refers to two belts, though...
I wonder why? Could it be just availability? Or some other
reason? There's no real difference; the belts are manufactured
very wide and slit to the required width.
A 220J20 belt is $23, while 220J10's are $19 each... though I have
an open account with McMaster, who stocks the 10's but not the 20's...
-Dana
--
+REAL+ programmers use EDLIN to create Windows apps
|
| | - The Matronics Kolb-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?Kolb-List |
|
|
|
| Back to top |
|
|
NeilsenRM(at)comcast.net
Guest
|
| Posted: Sun Apr 13, 2008 10:40 am Post subject: Ultrastar drive belt |
|
|
I talked to Homer Kolb last summer about my VW belt drive. He told me he had
a tool that measured belts. He had to pair up the belts from a shipment of
belts to make sure that the belts were the same size.
When I changed from cog belts to the serpentine belts I currently use there
was some loss of power but the serpentine belts don't transmit the nasty
harmonics the way cog belts do. Well worth the trade off.
Rick Neilsen
Redrive VW powered MKIIIC
---
| | - The Matronics Kolb-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?Kolb-List |
|
|
|
| Back to top |
|
|
herbgh(at)nctc.com
Guest
|
| Posted: Sun Apr 13, 2008 12:22 pm Post subject: Ultrastar drive belt |
|
|
Rick
At the flyin...did you say that your plane would fly on one
belt? Have you replaced the belts and how much do they cost? Herb
At 01:37 PM 4/13/2008, you wrote:
[quote]
<NeilsenRM(at)comcast.net>
I talked to Homer Kolb last summer about my VW belt drive. He told
me he had a tool that measured belts. He had to pair up the belts
from a shipment of belts to make sure that the belts were the same size.
When I changed from cog belts to the serpentine belts I currently
use there was some loss of power but the serpentine belts don't
transmit the nasty harmonics the way cog belts do. Well worth the trade off.
Rick Neilsen
Redrive VW powered MKIIIC
---
| | - The Matronics Kolb-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?Kolb-List |
|
|
|
| Back to top |
|
|
Dana
Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA
|
| Posted: Sun Apr 13, 2008 12:37 pm Post subject: Ultrastar drive belt |
|
|
At 01:40 PM 4/13/2008, robert bean wrote:
| Quote: | In industrial usage (back when I worked for a living) I found that
cog or notch style belts
were more efficient and outlasted plain Vs. Would something like this
be available for your
application?
|
Mine's the poly-v, sometimes called a serpentine belt (though "serpentine"
correctly refers to how a long belt is routed on a car, not the belt type
itself). Any other type of belt would require different pulleys.
-Dana
--
Lie ? Me ? Never! No, no, no, the truth is far too much fun!
| | - The Matronics Kolb-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?Kolb-List |
|
|
|
| Back to top |
|
|
Dana
Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA
|
| Posted: Sun Apr 13, 2008 12:42 pm Post subject: Ultrastar drive belt |
|
|
At 02:37 PM 4/13/2008, Richard & Martha Neilsen wrote:
| Quote: | I talked to Homer Kolb last summer about my VW belt drive. He told me he
had a tool that measured belts. He had to pair up the belts from a
shipment of belts to make sure that the belts were the same size.
When I changed from cog belts to the serpentine belts I currently use
there was some loss of power but the serpentine belts don't transmit the
nasty harmonics the way cog belts do. Well worth the trade off.
|
If by cog belts you mean timing belts (synchronous belts), then yes you can
get vibrations. Same thing with a gear drive, which is why a gear drive
often has some kind of slip clutch or harmonic dampener. A friction belt
(either a classic V-belt or a poly-v flat belt) lets it slip a bit,
dampening out the power pulses.
Of course too much slip and the belt wears prematurely.
One other advantage of the poly-v belt is that unlike a timing belt, it
rarely fails suddenly... ribs start to disappear and it's quite obvious
during preflight, but it will still transmit power. When a timing belt
goes, a bunch of teeth come off and you better have a landing spot handy.
-Dana
--
Lie ? Me ? Never! No, no, no, the truth is far too much fun!
| | - The Matronics Kolb-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?Kolb-List |
|
|
|
| Back to top |
|
|
NeilsenRM(at)comcast.net
Guest
|
| Posted: Sun Apr 13, 2008 1:17 pm Post subject: Ultrastar drive belt |
|
|
Herb
Yes. That's what they say. I have never tried just one belt and don't plan
on it. They sent me used belts so that I would be able to fly to Oshkosh
last summer with out having to play with run in adjustments. I have put only
47 hours on them since then. I don't have a clue of the cost.
Rick Neilsen
Redrive VW Powered MKIIIC
---
| | - The Matronics Kolb-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?Kolb-List |
|
|
|
| Back to top |
|
|
jb92563
Joined: 23 Mar 2007
Posts: 314
Location: Southern California
|
| Posted: Mon Apr 14, 2008 6:19 am Post subject: Re: Ultrastar drive belt |
|
|
Yikes......$19.00 each ?!!!!!!!
Try this out instead at $4.44
http://kscdirect.com/item/PIX%2B280J10/280J10_J-POLY-V_BELT_28%2522_10_RIB
Its what I am using on mine.
| | - The Matronics Kolb-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?Kolb-List |
|
_________________
Ray
Kolb UltraStar (Cuyuna UL-202)
Moni MotorGlider
Schreder HP-11 Glider
Grob 109 Motorglider
Do Not Archive |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
