Trains.com

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Walthers SW1

3773 views
20 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    August 2019
  • 164 posts
Walthers SW1
Posted by tankertoad135 on Thursday, February 10, 2022 10:51 PM

I was installing a decoder into an early Walthers SW1 and lost the nut that holds the worm gear in place on the rear truck.  Any ideas where I could find a replacement.  I struck out at Walthers.

Don; Prez, CEO or whatever of the Wishram, Oregon and Western RRGeeked

  • Member since
    July 2006
  • From: North Dakota
  • 9,592 posts
Posted by BroadwayLion on Friday, February 11, 2022 5:51 AM

Congratulations! Your nut just entered the Quantum time-space continum and will be found on April 16th 2023.

In the mean while... What is the thread of the part to witch the nut wood attach.

Is it ASE or Metric? If you have not a tool that will measure this for you, then go to a good nuts and bolts store, maybe even bring the part with you and tell the clerk that your train needs new nuts, and find one that fits.

Nust are nuts, but I prefer pecans!

The Route of the Broadway Lion The Largest Subway Layout in North Dakota.

Here there be cats.                                LIONS with CAMERAS

  • Member since
    November 2005
  • From: St. Paul
  • 823 posts
Posted by garya on Friday, February 11, 2022 10:22 AM

Does your SW1 look like this one?

https://tcsdcc.com/installation/ho-scale/1515

IIRC they were made by Roco, so probably metric.  That said, I'm not sure the nut to which you refer.

Gary

  • Member since
    August 2019
  • 164 posts
Posted by tankertoad135 on Friday, February 11, 2022 10:46 AM

Well Gents, I misspoke.  The missing part is not a nut but is the worm gear bearing that holds the worm gear in the proper position on the truck.

Don; Prez, CEO or whatever of the Wishram, Oregon and Western RRGeeked

  • Member since
    July 2006
  • From: North Dakota
  • 9,592 posts
Posted by BroadwayLion on Friday, February 11, 2022 1:54 PM

tankertoad135

Well Gents, I misspoke.  The missing part is not a nut but is the worm gear bearing that holds the worm gear in the proper position on the truck.

 

 

Oh.... Now that is a whole gnu ball of wax!!!

Maybe you cabn look on e-bay. You will not find the bearing that you need, but you might find a broken locomotive that may have the parts you need.

Look at the bearings closely, you said 'nut' so methinks that is looks like a 'nut' and therefore an old Atheran drive may have the part you need.

Buy a nold locomotive for the pards, take the parts you need and park the carcass of the donar engine on your dead line.

The Route of the Broadway Lion The Largest Subway Layout in North Dakota.

Here there be cats.                                LIONS with CAMERAS

  • Member since
    February 2007
  • 472 posts
Posted by Graham Line on Friday, February 11, 2022 2:15 PM

When I get into a project like this, I make sure there's a little plastic cup or container on the workbench.  All of the little parts go into this if they have to come off of the engine or car.  It won't help you this time, but it has saved me from losing unobtainable parts.  The "manufacturers" seem to have lost interest in spare parts.

  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
  • 18,255 posts
Posted by SeeYou190 on Friday, February 11, 2022 3:21 PM

tankertoad135
The missing part is not a nut but is the worm gear bearing that holds the worm gear in the proper position on the truck.

Oh dear. That sounds like you will need a donor locomotive.

-Kevin

Living the dream.

  • Member since
    January 2012
  • From: Edgewood, WA
  • 54 posts
Posted by 2ManyHobbeez on Friday, February 11, 2022 8:29 PM

I Googled "athearn worm gear bearing" and turned up numerous sources for these things.

George

Edgewood, WA

  • Member since
    July 2006
  • From: Bradford, Ontario
  • 15,797 posts
Posted by hon30critter on Friday, February 11, 2022 10:27 PM

tankertoad135
I was installing a decoder into an early Walthers SW1 and lost the nut that holds the worm gear in place on the rear truck

Hi Don,

Something you need to look at closely is whether or not there were any thrust washers between the bearing and the worm. I'm not familiar with the Walthers trucks specifically, but I know that most of my drive trucks have thrust bearings. Beware, they are tiny and easily missed!

Dave

I'm just a dude with a bad back having a lot of fun with model trains, and finally building a layout!

  • Member since
    July 2006
  • From: North Dakota
  • 9,592 posts
Posted by BroadwayLion on Friday, February 11, 2022 11:15 PM

Yes.. You shoud see the thrust bearings on the

Battleship New Jersey.

The Route of the Broadway Lion The Largest Subway Layout in North Dakota.

Here there be cats.                                LIONS with CAMERAS

  • Member since
    December 2004
  • From: Bedford, MA, USA
  • 21,481 posts
Posted by MisterBeasley on Saturday, February 12, 2022 12:20 PM

BroadwayLion

Yes.. You shoud see the thrust bearings on the

Battleship New Jersey.

What exit?

It takes an iron man to play with a toy iron horse. 

  • Member since
    August 2003
  • From: Collinwood, Ohio, USA
  • 16,367 posts
Posted by gmpullman on Saturday, February 12, 2022 7:13 PM

MisterBeasley
What exit?

More here: (thrust bearing begins at 2:50)

https://www.youtube.com/watch?v=Q5dkJ_KqljA

 

https://en.wikipedia.org/wiki/Battleship_New_Jersey_Museum_and_Memorial

 

Exit 5 off the North-South freeway I-676.

 

Good Luck, Ed

  • Member since
    July 2006
  • From: Bradford, Ontario
  • 15,797 posts
Posted by hon30critter on Saturday, February 12, 2022 7:48 PM

2ManyHobbeez
I Googled "athearn worm gear bearing" and turned up numerous sources for these things.

Hi George,

The OP was referring to a Walthers SW1. Do you know if the Walthers bearings are the same as the Athearn bearings?

Dave

I'm just a dude with a bad back having a lot of fun with model trains, and finally building a layout!

  • Member since
    August 2019
  • 164 posts
Posted by tankertoad135 on Saturday, February 12, 2022 10:26 PM

The Walthers bearing is different than Athearn's and I do have the thrust washer.  I had secured the items in a secure space, but moved a couple of items around without thinking.  When I glanced at the floor, I saw the thrust washer  but no bearing.  Too bad Walthers does not stock much in replacment parts.  I shall keep a lookin'.

Thanks y'all.Cowboy

Don; Prez, CEO or whatever of the Wishram, Oregon and Western RRGeeked

  • Member since
    July 2006
  • From: Bradford, Ontario
  • 15,797 posts
Posted by hon30critter on Sunday, February 13, 2022 2:27 AM

tankertoad135
I shall keep a lookin'.

Hi Don,

I think that searching the floor is your best bet. I have been known to recruit my wife occasionally in these situations. I would also suggest getting a really bright flashlight (if you haven't already done so) and shining the light from several different directions. If you still don't have any success then get your nose closer to the floor and search in a small grid pattern. If that fails, then search a wider area, but always in an organized pattern. Parts like your bearing can bounce pretty good, and Murphy's Law says that they will go under anything that keeps them out of sight. Contrary to superstitions, lost things are NOT consummed by the underworld! Keep searching. It is there somewhere!

Dave

I'm just a dude with a bad back having a lot of fun with model trains, and finally building a layout!

  • Member since
    July 2006
  • From: North Dakota
  • 9,592 posts
Posted by BroadwayLion on Sunday, February 13, 2022 6:23 AM

hon30critter
Contrary to superstitions, lost things are NOT consummed by the underworld! Keep searching. It is there somewhere!

 

Its Quantum Mechanics.

A coin is neither heads nor tails while it is spinning on its edge.

When it stops spinning it can be either heads or tails but not both.

If it comes up heads the reverse side is completely blank
unless you pick it up to look at it.

 

 

The Route of the Broadway Lion The Largest Subway Layout in North Dakota.

Here there be cats.                                LIONS with CAMERAS

  • Member since
    November 2005
  • From: St. Paul
  • 823 posts
Posted by garya on Monday, February 14, 2022 12:36 PM

NWSL has some bushings and bearings if your search proves fruitless.

Gary

  • Member since
    August 2019
  • 164 posts
Posted by tankertoad135 on Wednesday, March 9, 2022 11:32 AM

Well, good news anyway.  I have yet to find the missing worm gear bearing, however, I went to Bowser Trains site and their parts department.  The Bowser VO1000 drive has the same bearing as Walthers SW1 and I purchased a pair of them.  The replacement fit perfectly and now the SW1 runs sweetly.  Now to get done with the decaling and detailing so's I can return her to the club for ops in our new yard.Cowboy

Don; Prez, CEO or whatever of the Wishram, Oregon and Western RRGeeked

  • Member since
    August 2020
  • 581 posts
Posted by Southgate 2 on Wednesday, March 9, 2022 7:42 PM

Cool resource. Dan

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Users Online

There are no community member online

Search the Community

ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
Model Railroader Newsletter See all
Sign up for our FREE e-newsletter and get model railroad news in your inbox!