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Offline morsing  
#1 Posted : 10 August 2020 09:50:47(UTC)
morsing

United Kingdom   
Joined: 16/08/2014(UTC)
Posts: 586
Location: Aylesbury, Buckinghamshire
Hi,

Running around for the first time in a long time, I had a few problems with cars coming off the track at points. My two new Arla cars were especially bad.

I decided to measure the flange distance on several cars and found they varied a lot. From 3.95mm to 4.35mm.

Is the best thing to do to buy a stack of Marklin wheelsets and fit those? And which ones?

Thanks
-----
Modelling west Denmark era IV - possibly with some out-of-place elements!
Marklin C-track + CS3+
12m2 layout to be controlled by RocRail
Offline Henrik Schütz  
#2 Posted : 10 August 2020 12:00:12(UTC)
Henrik Schütz

Sweden   
Joined: 04/08/2015(UTC)
Posts: 74
Location: Stockholms Lan, Stockholm
What make and number are the Arla cars?

Cheers

Henrik Schütz
Offline morsing  
#3 Posted : 10 August 2020 12:06:40(UTC)
morsing

United Kingdom   
Joined: 16/08/2014(UTC)
Posts: 586
Location: Aylesbury, Buckinghamshire
Originally Posted by: Henrik Schütz Go to Quoted Post
What make and number are the Arla cars?

Cheers

Henrik Schütz


Hi,

They're a very limited run from Togdillen, "Togdillen Reklamevogn Arla".

Thanks
-----
Modelling west Denmark era IV - possibly with some out-of-place elements!
Marklin C-track + CS3+
12m2 layout to be controlled by RocRail
Offline jvuye  
#4 Posted : 10 August 2020 22:04:51(UTC)
jvuye

Belgium   
Joined: 01/03/2008(UTC)
Posts: 2,881
Location: South Western France
Originally Posted by: morsing Go to Quoted Post
Hi,

Running around for the first time in a long time, I had a few problems with cars coming off the track at points. My two new Arla cars were especially bad.

I decided to measure the flange distance on several cars and found they varied a lot. From 3.95mm to 4.35mm.

Is the best thing to do to buy a stack of Marklin wheelsets and fit those? And which ones?

Thanks


These values don't make sense to me, sorry!
It should be something like 13.8 or so up to 14.2

The Marklin 3 rail spec is 13.8 mm, and anything above 14 is almost sure to jump on switches
14.2 is the spec for two rail.
I have long not bought any replacement wheelsets for non Märklin coaches.
I simply regauge them , period, end of story!
You need a special gauge ( https://www.fohrmann.com/en/rail-gauge-h0.html) and a wheel puller/press/ spacer. (https://www.fohrmann.com/en/wheel-spacer.html)
Small investment but will save you in the future, including lots of headaches and frustration



Jacques Vuye aka Dr.Eisenbahn
Once a vandal, learned to be better and had great success!
thanks 2 users liked this useful post by jvuye
Offline kiwiAlan  
#5 Posted : 10 August 2020 22:39:27(UTC)
kiwiAlan

United Kingdom   
Joined: 23/07/2014(UTC)
Posts: 8,082
Location: ENGLAND, Didcot
Originally Posted by: jvuye Go to Quoted Post
Originally Posted by: morsing Go to Quoted Post
Hi,

Running around for the first time in a long time, I had a few problems with cars coming off the track at points. My two new Arla cars were especially bad.

I decided to measure the flange distance on several cars and found they varied a lot. From 3.95mm to 4.35mm.

Is the best thing to do to buy a stack of Marklin wheelsets and fit those? And which ones?

Thanks


These values don't make sense to me, sorry!
It should be something like 13.8 or so up to 14.2

The Marklin 3 rail spec is 13.8 mm, and anything above 14 is almost sure to jump on switches
14.2 is the spec for two rail.
I have long not bought any replacement wheelsets for non Märklin coaches.
I simply regauge them , period, end of story!
You need a special gauge ( https://www.fohrmann.com/en/rail-gauge-h0.html) and a wheel puller/press/ spacer. (https://www.fohrmann.com/en/wheel-spacer.html)
Small investment but will save you in the future, including lots of headaches and frustration



No Jaques, I think he is talking about the flange depth, not back to back measurement ... BigGrin
That would fit with the around 4mm dimension. It sounds like they may be Trix Express style wheels.


thanks 1 user liked this useful post by kiwiAlan
Offline dominator  
#6 Posted : 10 August 2020 23:07:03(UTC)
dominator

New Zealand   
Joined: 20/01/2015(UTC)
Posts: 1,195
Location: Kerikeri
Hi Henrik, so far I have discovered two problems with non Marklin wheels. As Jacques has mentioned Marklin's flange gauge is 13.8 mm and also some of the wheels have had a narrower track width, which when re-gauged down to 13.8, they tend to let one slide slide in between the rails .
Northland. NZ REMEMBER 0228 for ä
Offline Copenhagen  
#7 Posted : 10 August 2020 23:13:11(UTC)
Copenhagen


Joined: 23/04/2019(UTC)
Posts: 369
Location: Copenhagen, Denmark
Usually it's recommended to have wheels with large flanges on Maerklin track but more often it is the flange distance and other details on the rolling stock that causes problems. I just got some Dekas ivg and igk DSB "meat wagons" with flimsy spoked dc wheels with small flanges and they run fine on my C tracks. They are also relatively small cars with short axle distance.
thanks 2 users liked this useful post by Copenhagen
Offline dominator  
#8 Posted : 10 August 2020 23:38:35(UTC)
dominator

New Zealand   
Joined: 20/01/2015(UTC)
Posts: 1,195
Location: Kerikeri
Ah, that's a third problem I found years ago. Had to change the wheels because the flanges were too small, causing problems over points. I forgot about that.

Dereck
Northland. NZ REMEMBER 0228 for ä
Offline kimballthurlow  
#9 Posted : 11 August 2020 00:18:07(UTC)
kimballthurlow

Australia   
Joined: 18/03/2007(UTC)
Posts: 6,653
Location: Brisbane, Australia
Originally Posted by: kiwiAlan Go to Quoted Post
....

No Jaques, I think he is talking about the flange depth, not back to back measurement ... BigGrin
That would fit with the around 4mm dimension. It sounds like they may be Trix Express style wheels.




I think Henrik forgot to put a 1 in front of the figures.
Try - From 13.95mm to 14.35mm in leu of - From 3.95mm to 4.35mm..

Kimball
HO Scale - Märklin (ep II-III and VI, C Track, digital) - 2 rail HO (Queensland Australia, UK, USA) - 3 rail OO (English Hornby Dublo) - old clockwork O gauge - Live Steam 90mm (3.1/2 inch) gauge.
Offline Copenhagen  
#10 Posted : 11 August 2020 01:20:25(UTC)
Copenhagen


Joined: 23/04/2019(UTC)
Posts: 369
Location: Copenhagen, Denmark
Concerning wheel distance (inside measure) from my experience: the more it exceeds 14mm the greater the risk of derailment. The more it goes below 14mm, the greater the chances of short circuits. In relation to turnouts.
Somebody may have the precise tolerances for todays' C and K tracks...
Offline morsing  
#11 Posted : 11 August 2020 09:13:00(UTC)
morsing

United Kingdom   
Joined: 16/08/2014(UTC)
Posts: 586
Location: Aylesbury, Buckinghamshire
Sorry, don't know how I managed to type those numbers in wrong... They should have been 13.9 - 14.3.

And wow, I didn't know you could adjust the distance or how easy it is. I just pushed the wheels with my finger and they're now 13.8mm. Will do some test runs later.

Thanks!
-----
Modelling west Denmark era IV - possibly with some out-of-place elements!
Marklin C-track + CS3+
12m2 layout to be controlled by RocRail
Offline Garoux  
#12 Posted : 11 August 2020 09:34:25(UTC)
Garoux

France   
Joined: 15/07/2020(UTC)
Posts: 45
Location: Occitanie, Canton de Lacapelle-Marival
Originally Posted by: morsing Go to Quoted Post
Hi,

Running around for the first time in a long time, I had a few problems with cars coming off the track at points. My two new Arla cars were especially bad.

I decided to measure the flange distance on several cars and found they varied a lot. From 3.95mm to 4.35mm.

Is the best thing to do to buy a stack of Marklin wheelsets and fit those? And which ones?

Thanks

Hi Morsing
I encounter the same problem with Marklin cars recently purchased. Often upon switches voie C

Offline LeoArietis  
#13 Posted : 17 July 2021 23:01:52(UTC)
LeoArietis

Sweden   
Joined: 07/02/2008(UTC)
Posts: 153
Location: Lindome, Sweden
I think the NEM-standard for Märklin 3R back-to-back measure would be 14.0 mm.
Current layout:
http://www.svensktmjforu.../index.php?topic=10990.0
The former project:
http://www.svensktmjforu...forum_posts.asp?TID=1097
With Pictures and trackplans, but in Swedish
Transitation-curves in C-track:
https://www.marklin-user...9-on-75-cm.aspx#post9281
thanks 1 user liked this useful post by LeoArietis
Offline Alsterstreek  
#14 Posted : 18 July 2021 09:40:38(UTC)
Alsterstreek

Germany   
Joined: 16/11/2011(UTC)
Posts: 5,666
Location: Hybrid Home
The MOROP standard (NEM 340) Leo referred to:

https://www.morop.org/do...oads/nem/de/nem340_d.pdf

However, the 13.8 mm "re-commended" by the Fohrmann H0 rail gauge just works fine for me:

https://www.fohrmann.com/en/rail-gauge-h0.html
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