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What style caps are these

Discussion in 'Flatbed Trucking Forum' started by hazzmatt89, Jun 8, 2025.

  1. Jun 8, 2025 #1
    hazzmatt89

    hazzmatt89 Bobtail Member

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    Looking at a trailer to possibly buy and these are the caps over the hubs in the back, I’m only familiar with the versions where you have a clear cap and a plug you pull out and fill with oil.
    Trailer is a 2015 Fontaine velocity
     

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    hazzmatt89, Jun 8, 2025
    hazzmatt89, Jun 8, 2025
    #1
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  3. Jun 8, 2025 #2
    kwswan

    kwswan Road Train Member

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    Grease filled hub instead of oil.
     
    kwswan, Jun 8, 2025
    kwswan, Jun 8, 2025
    #2
    CAXPT, TripleSix, Diesel Dave and 3 others Thank this.
  4. Jun 8, 2025 #3
    AModelCat

    AModelCat Road Train Member

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    Probably a grease packed wheel bearing if it uses solid caps like that.
     
    AModelCat, Jun 8, 2025
    AModelCat, Jun 8, 2025
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  5. Jun 8, 2025 #4
    Big Road Skateboard

    Big Road Skateboard Road Train Member

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    It's a grease filled, or semi fluid grease filled, Hendrickson hub it appears
     
    Big Road Skateboard, Jun 8, 2025
    Big Road Skateboard, Jun 8, 2025
    #4
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  7. Jun 8, 2025 #5
    hazzmatt89

    hazzmatt89 Bobtail Member

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    Ok thank you, are those any different bs the other ones is regards to quality? Trailers been sitting a year and went and looked it over today seemed to be in good shape minus tires and air bags look dry rotted with animal nestings all around them
     
    hazzmatt89, Jun 8, 2025
    hazzmatt89, Jun 8, 2025
    #5
  8. Jun 9, 2025 at 12:11 AM #6
    North Pole Nightmare

    North Pole Nightmare Heavy Load Member

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    I have a 2023 Fontaine,they use only Chevron synthetic grease.The decals on the trailer say maintenance free for 5 years.
    You're supposed to call Fontaine before you take one of the caps off.You only need to jack the axle up and check if they're spinning smoothly and don't have any play in the bearings.
     
    North Pole Nightmare, Jun 9, 2025 at 12:11 AM
    North Pole Nightmare, Jun 9, 2025 at 12:11 AM
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    CAXPT Thanks this.
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