Cox Engines Forum
You are not logged in! Please login or register.

Logged in members see NO ADVERTISEMENTS!


Conquest Prop nut wanted Cox_ba12




Conquest Prop nut wanted Pixel

Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» Still don't get it.
by Scotland421 Today at 8:36 am

» Engine trade --- A Cox diesel engine for an Enya .049 custom built?
by sosam117 Yesterday at 8:50 pm

» When Everybody Flew with Spark Plugs or Diesels
by Ken Cook Yesterday at 2:25 pm

» Ordered a 1/2A Skyray kit
by TLAnderson Sun Jun 20, 2021 7:52 pm

» Follow Rusty's Memorial Traveling Engines!
by NEW222 Sun Jun 20, 2021 7:33 pm

» Ron's Baby Clown and It's Bladder System from a Few Years Ago!
by Yabby Sun Jun 20, 2021 3:17 pm

» How's the weather?
by Admin Sat Jun 19, 2021 11:14 am

» C-Clip pliers and the clutch connection
by rsv1cox Sat Jun 19, 2021 10:23 am

» Lightening a piston using common tools
by davidll1984 Fri Jun 18, 2021 10:03 am

» Hobby Air Products Multi Cylinder Cox Engines
by getback Fri Jun 18, 2021 9:02 am

» music vids.. some of your favorites
by getback Thu Jun 17, 2021 1:36 pm

» Yet another Killer Bee clone by Estes?
by davidll1984 Thu Jun 17, 2021 9:58 am

Cox Engine of The Month
June-2021
balogh's

"Little Red Rooster"




PAST WINNERS
CEF Traveling Engine

Win This Engine!
Forum Store
CEF Ear Savers
Gallery


Conquest Prop nut wanted Empty

Conquest Prop nut wanted

Go down

Wanted Conquest Prop nut wanted

Post  OVERLORD Mon Jan 11, 2021 10:52 am

In order to fix the rotor of my Kress ducted fan to the engine, I need a prop nut which was not in the box. I searched the internet but could not find what I needed. I think it's called a well nut.

The rotor is higher than the crank shaft stud and the nut goes into the rotor hole and acts as a center guide as well. It is like the Conquest nut that Mecoa sells, only with a longer shank.

Conquest Prop nut wanted Imgp6319

The nut sold by Mecoa:

Conquest Prop nut wanted Prop_n10

As what dimensions is concerned:
Shank diameter:1/4" (this is the diameter of the hole in the rotor)
nut thread: #10-32
shank length: about 3/4"
The hexagonal head size is not critical, can be for an allan key also

Kress calls this piece a "hex rotor adapter bolt":

Conquest Prop nut wanted Instru16



Is there someone that has such a nut or can make one on a lathe by e.g. transforming a 1/4" diameter bolt?
OVERLORD
OVERLORD
Diamond Member
Diamond Member

Posts : 1593
Join date : 2013-03-19
Age : 55
Location : Normandy, France

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  Cribbs74 Mon Jan 11, 2021 11:14 am

I’ll have a look in my conquest stuff and see if I can find one. How hard would it be for you to find or have one made in France?
Cribbs74
Cribbs74
Moderator

2019 Supporter

2020 Supporter

2021 Supporter

Posts : 11522
Join date : 2011-10-24
Age : 47
Location : Tuttle, OK

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  Surfer_kris Mon Jan 11, 2021 11:35 am

The easiest would be to make your own in lathe, or if you know someone with access to a lathe, it is quite easy if you start from a hex-bar stock.

If I understand the text correctly you also need to bore out the rotor to 1/4", if the one you have now is for the Cox .09 engine?

It looks like there currently might not be enough space for the nut, you'll need about 0.5-1mm clearance on either side of the axis, or else the nut will simply shear off at the threads.

The nuts can be made in a soft steel:

Conquest Prop nut wanted Img_0211
Surfer_kris
Surfer_kris
Diamond Member
Diamond Member

Posts : 1787
Join date : 2010-11-20
Location : Sweden

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  OVERLORD Tue Jan 12, 2021 3:15 am

Thanks Ron, If I have that made here, I'd have to bring along my own tap set. #10-32 is considered as being from another planet.

That's the type of nut, as on the picture. I have the right rotor with 1/4 hole and counersunk back.
OVERLORD
OVERLORD
Diamond Member
Diamond Member

Posts : 1593
Join date : 2013-03-19
Age : 55
Location : Normandy, France

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  Surfer_kris Tue Jan 12, 2021 6:09 am

The #10-32 is an UNF-thread and it just happens to be very close in the dimensions to the more common, regular M-thread, M5x0.8. Smile
So you have plenty of options, ready-made or someone can make it for you.
(An M5 nut will fit on the #10-32 bolt but not the other way around)

Here is one from the NovaRossi Rex .12 engine as an example:

Conquest Prop nut wanted M5x0_810
Surfer_kris
Surfer_kris
Diamond Member
Diamond Member

Posts : 1787
Join date : 2010-11-20
Location : Sweden

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  Cribbs74 Tue Jan 12, 2021 10:24 am

I looked last night. No luck sorry.
Cribbs74
Cribbs74
Moderator

2019 Supporter

2020 Supporter

2021 Supporter

Posts : 11522
Join date : 2011-10-24
Age : 47
Location : Tuttle, OK

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  OVERLORD Wed Jan 13, 2021 3:50 am

Thanks for looking Ron

Do you or someone else have one of those:


This is an "adapter nut", medium length, made by Fox, part nr 60402. They come in a short, medium and probably a long version. They are offered on ebay. The thread is 10-32 but before any purchase, I want to know the shank length and diameter. I asked the sellers but haven't received any answer yet.

Conquest Prop nut wanted Fox_ad10

Conquest Prop nut wanted Fox_ad11
OVERLORD
OVERLORD
Diamond Member
Diamond Member

Posts : 1593
Join date : 2013-03-19
Age : 55
Location : Normandy, France

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  getback Wed Jan 13, 2021 5:43 am

The one your showing on the bay is 1/4 - 28 thread i thought u needed a 10-32 thread? If so this is that https://www.ebay.com/itm/FOX-10-32-Medium-NUT-WASHER-ENGINE-PART-60402-AIRPLANE-RC-PARTS/114259175083?hash=item1a9a60a6ab:g:fDoAAOSwXf9e5nzY
getback
getback
Top Poster
Top Poster

2019 Supporter

2020 Supporter

Posts : 7899
Join date : 2013-01-18
Age : 63
Location : julian , NC

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  OVERLORD Wed Jan 13, 2021 6:05 am

No worries Eric, the pictures are right, it says so on the label
OVERLORD
OVERLORD
Diamond Member
Diamond Member

Posts : 1593
Join date : 2013-03-19
Age : 55
Location : Normandy, France

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  getback Wed Jan 13, 2021 6:58 am

OK hope you can get it sorted out . Cool
getback
getback
Top Poster
Top Poster

2019 Supporter

2020 Supporter

Posts : 7899
Join date : 2013-01-18
Age : 63
Location : julian , NC

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  Surfer_kris Wed Jan 13, 2021 9:21 am

You will most likely still need a lathe to modify the nut, i.e. turn down the outside to the desired diameter. I don't have the #10-32 one from Fox myself, but the 1/4" nut was rather thick walled to me. I've used it on a LEO .15 conversion:

Conquest Prop nut wanted Fox_pr10
Surfer_kris
Surfer_kris
Diamond Member
Diamond Member

Posts : 1787
Join date : 2010-11-20
Location : Sweden

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  OVERLORD Thu Jan 14, 2021 8:15 am

Here a picture I received from a seller. The diameter looks more than 1/4". I think it's 3/8" when measured.



Conquest Prop nut wanted Adapte10
OVERLORD
OVERLORD
Diamond Member
Diamond Member

Posts : 1593
Join date : 2013-03-19
Age : 55
Location : Normandy, France

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  Surfer_kris Thu Jan 14, 2021 12:44 pm

In that picture I'm guessing that the prop will be on the right-hand side of that nut. I.e. the smaller part is meant to fit into a washer that goes against the prop. It will not extend into the prop at all.

The lefthand side is supposed to be the support for the spinner, it will have a smaller thread at that end than the one for the crank. I.e. the crank will not go all the way through that nut.

If you compare to the image I posted above, I have used a lathe to increase the distance of the part that is facing the engine side, while the outermost part is unchanged.

I see that you are not located in the USA?
If nothing else works out for you, I could possibly make something here and have it sent to you by regular mail. Not sure if I can find a tap for a #10-32 thread though.
Surfer_kris
Surfer_kris
Diamond Member
Diamond Member

Posts : 1787
Join date : 2010-11-20
Location : Sweden

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  OVERLORD Fri Jan 15, 2021 8:37 am

Thanks for the offer Kris, I'll keep that in mind. For the #10-32 tap, I have a solution.
OVERLORD
OVERLORD
Diamond Member
Diamond Member

Posts : 1593
Join date : 2013-03-19
Age : 55
Location : Normandy, France

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  Surfer_kris Fri May 28, 2021 5:35 am

How is this project going?

I have the correct tap now and can make a nut for you if you still need it (free of charge).
Surfer_kris
Surfer_kris
Diamond Member
Diamond Member

Posts : 1787
Join date : 2010-11-20
Location : Sweden

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  OVERLORD Mon May 31, 2021 1:31 pm

Hi Kris, Yes, I still need one. In the mean time, I got a tap and corresponding drill bit as well from Dubro. I will send you a PM. Thanks!!!
OVERLORD
OVERLORD
Diamond Member
Diamond Member

Posts : 1593
Join date : 2013-03-19
Age : 55
Location : Normandy, France

Back to top Go down

Wanted Re: Conquest Prop nut wanted

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum