Is it possible to buy a ferulle like this? (pics).

  1. mart

    mart Member

    I need to obtain a ferulle. I'm unsure of the type of metal it is made from. As I am struggling at the moment, I would be willing to use any sort of metal.

    The dimensions are: internal dia 4mm (so it fits snuggly as in photo). External dia 7mm. Length 8mm.

    I have tried using different search terms on e bay, but nothing remotely like it comes up. I'd be willing to cut it from the end of a piece of pipe if diameters matched.

    Can anyone help or advise with this please?
    20200916_120237.jpg
    20200916_120302.jpg
    The photo below shows the good ferulle slipped on to one of the pegs. The other peg without ferulle can be seen at adjacent side.
    2020-09-16 12.22.13.jpg
     
  2. voipio Member

    Messages:
    943
    Cambridge, UK
    It looks possibly like a sintered sleeve, similar to the plain bearings in some electric motors. Is it off a sewing machine, by any chance? Does it move in a slideway?
     
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  3. slim_boy_fat

    slim_boy_fat Forum Supporter

    What's it off? Does it need lubrication? Looks like brass to me, would any other metal serve the purpose?

    I'm sure someone could turn one on the lathe.
     
  4. 123hotchef Member

    Messages:
    9,606
    Location:
    Kent
    looks like a oilite bushing look on oilite webside
     
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  5. RichardM Member

    sintered bronze bush
     
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  6. garethp Forum Supporter

    Messages:
    1,015
    sw scotland
    +1 for a sintered bronze bush from the color, the apparent application and the way its broken.
     
    Matchless likes this.
  7. mart

    mart Member

    It is my saw. It is the housing of the parts that control the pendulum action, and the up/down motion. The housing is filled with thick dark brown grease for lubrication.

    There will be some motion of the ferulles/bushes-maybe sort of back & forth as the pendulum fuctions.

    In this photo the recesses for where these ferulles sit can be seen.
    20200916_150816.jpg
    The next photo shows the one ferulle in position.
    20200916_150737.jpg
     
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  8. tom2207 Member

    Messages:
    1,782
    Location:
    uk northern ireland
    bit of brass bar end off a drift etc , drill it , file it ,, then put a small flat or two on the shaft it rocks on to let some lube in round it,, job done .
     
  9. mart

    mart Member

    I'v just phoned oilite and I gave them the dimensions od7 x id4 x L8. The nearest they do is 8×5x8 regardless of material. :(

    @tom2207
    I have a drill press, but don't think I could drill that straight & square in such a small section of metal.
     
  10. tom2207 Member

    Messages:
    1,782
    Location:
    uk northern ireland
    yep ,, I would be giving it a go ,,, drill a bit of oversize bar , and file it to suit , its not a racing car or an aircraft , it only has to fit and work.
     
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  11. Dcal

    Dcal Forum Supporter

    Messages:
    2,123
    Location:
    Antrim Northern Ireland
    If you are not fussy on the material I can make you one out of brass.
    I think I have some brass bar somewhere.
     
  12. Agroshield Member

    Messages:
    928
    They do ID 4 OD 7 L 4 so two of these each side would do.

    See:

    https://www.rmbearings.co.uk/pictures/pdfs/GLACIER OILITE BUSH.pdf

    AMC0407 page 3.

    Clamp a piece of wood to the drill press table. Drill a shallow hole the OD of the bush. Push in the bush. Drill the ID to desired size.
     
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  13. nick952

    nick952 Member

    Messages:
    248
    Location:
    Wrexham, N.Wales
  14. Bladevane

    Bladevane Member

    Messages:
    733
    Location:
    Harwell, Oxon
  15. mart

    mart Member

    Last edited by a moderator: Sep 16, 2020 at 8:11 PM
  16. mart

    mart Member

    I think something has gone wrong with the thread?
     
  17. MattF

    MattF Member

    Messages:
    10,232
    Location:
    South Yorkshire, England
    You've just cocked up the quote tags when replying.
     
  18. Agroshield Member

    Messages:
    928
    First, the one suggested by Bladevane is the easiest. Off the shelf and exactly what you need.

    G and s (upper- and lower-case respectively) are standard terms in ISO limits and fits, and so refer to the hole size the bush fits in and the shaft size which passes through it. The letter itself, the case it is in and the number all mean something. The other place you will commonly see it is on a thread cutting tap or on a reamer.

    See:

    http://www.pfeffer.ch/isotolerances.htm
     
    mart likes this.
  19. Paul.

    Paul. Moderator Staff Member

    Messages:
    6,504
    Location:
    Northampton. UK
    Sorted ;)
     
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  20. RichardM Member

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