Page 1 of 2 12 LastLast
Results 1 to 10 of 17

Thread: Question: Regarding Rolling Stock and Bearings

  1. #1

    Default Question: Regarding Rolling Stock and Bearings

    Was it ever normal for freight trains to consist of rolling stock that had a mixture of both plain and roller bearings? Especially manifests with their variety, but also units as well?

    I'm building a freight timetable for the Monon route (70s era) using all of the recently uploaded NAVS freeware rolling stock, and many of Tyler Bundy's 3D cab locomotives. I've only been using roller bearing stock so far, and I've noticed there were a couple of variants of NAVS boxcars that I haven't used because those only come with plain bearings.

    Thank you.
    "My dog got loose once, what I did was show him his leash & he came running back, thinking it was time for a walk - stupid dog."

  2. #2
    Join Date
    Nov 2007
    Location
    SW MO
    Posts
    684

    Default

    Friction bearings were gone by the 70s.
    You may have been able to catch some on restricted speed MOW equipment but not on any mainline freight trains.

    Randy

  3. #3
    Join Date
    Jun 2009
    Location
    Post Falls, ID
    Posts
    1,143

    Default

    Quote Originally Posted by rdayt View Post
    Friction bearings were gone by the 70s.
    You may have been able to catch some on restricted speed MOW equipment but not on any mainline freight trains.

    Randy
    SP unit sugar beet trains of wood cars with plain bearings ran up until about 1993.
    ~Sean Kelly~
    MRL Mullan Pass for Open Rails: https://www.trainsimulations.net/mullanpass
    SP Shasta Route for Open Rails: In Development / Tracks 100%, Scenery 75%

  4. #4

    Default

    Quote Originally Posted by rdayt View Post
    Friction bearings were gone by the 70s.
    You may have been able to catch some on restricted speed MOW equipment but not on any mainline freight trains.

    Randy
    Thanks. Figured that by the 1970s the lack of any footage or discussion about the crew greasing bearings on mainline freight was indicative of this.
    "My dog got loose once, what I did was show him his leash & he came running back, thinking it was time for a walk - stupid dog."

  5. #5

    Default

    Cars with friction bearings couldn't be interchanged after 1994, but there was nothing preventing their use for online-only service.

    Sent from my SM-G981U using Tapatalk

  6. #6
    Join Date
    Dec 2006
    Location
    Brockville, ON, CA
    Posts
    2,862

    Default

    Keep in mind that a lot of older friction bearing cars kept their trucks with journals but were refitted with roller bearings.

    Paul :-)

  7. #7
    Join Date
    Jun 2009
    Location
    Post Falls, ID
    Posts
    1,143

    Default

    Quote Originally Posted by eolesen View Post
    Cars with friction bearings couldn't be interchanged after 1994, but there was nothing preventing their use for online-only service.

    Sent from my SM-G981U using Tapatalk
    Good point. In North Idaho, the St. Maries River Railroad was using a massive fleet of friction bearing ex-Milwaukee Road log bunks in captive service up until the end of log train service around 2008/2009.
    ~Sean Kelly~
    MRL Mullan Pass for Open Rails: https://www.trainsimulations.net/mullanpass
    SP Shasta Route for Open Rails: In Development / Tracks 100%, Scenery 75%

  8. #8
    Join Date
    Feb 2013
    Location
    known universe
    Posts
    2,690

    Default

    Okay, maybe a couple of questions have bearing here ( pun groaning totally acceptable )....

    First -- I've read here and at other forums, and discussion groups, that friction bearings do not exist. I have heard that specific term applied to certain types of bearings since I was a kid, it seems that it does properly apply to a specific type of bearing for railcars and locomotives. What gives?

    Second -- Journal bearings seems strange to me, since all bearings ride in the journal?
    Cheers, Gerry
    It's my railroad and I'll do what I want! Historically accurate attitude of US Railroad Barons.
    Forever, ridin' drag in railroad knowledge.


  9. #9
    Join Date
    Jun 2009
    Location
    Post Falls, ID
    Posts
    1,143

    Default

    Quote Originally Posted by R. Steele View Post
    Okay, maybe a couple of questions have bearing here ( pun groaning totally acceptable )....

    First -- I've read here and at other forums, and discussion groups, that friction bearings do not exist. I have heard that specific term applied to certain types of bearings since I was a kid, it seems that it does properly apply to a specific type of bearing for railcars and locomotives. What gives?

    Second -- Journal bearings seems strange to me, since all bearings ride in the journal?
    Gerry,

    I had only ever heard "friction bearings" most of my life. Turns out the actual correct term is plain bearing. "Friction bearings" was supposedly a term coined by the roller bearing manufacturers as a way of making the plain bearings sound inferior (i.e. they cause "more friction"). Have not normally heard the term "journal bearing", but I'm guessing it is another term for a plain bearing...
    ~Sean Kelly~
    MRL Mullan Pass for Open Rails: https://www.trainsimulations.net/mullanpass
    SP Shasta Route for Open Rails: In Development / Tracks 100%, Scenery 75%

  10. #10

    Default

    Quote Originally Posted by charland View Post
    Keep in mind that a lot of older friction bearing cars kept their trucks with journals but were refitted with roller bearings.

    Paul :-)
    Are those the plain bearing trucks with the caps removed from the journal housings?

    I'm looking at the NAVS rolling stock in TSRE and some of the plain bearing trucks have capped journal housings, while others do not.
    "My dog got loose once, what I did was show him his leash & he came running back, thinking it was time for a walk - stupid dog."

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •