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Thread: Gearbox oil

  1. #1
    Join Date
    Apr 2008
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    Perth
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    269

    Default Gearbox oil

    Hello all

    Does anyone know what grade or weight of oil to use in a Lathe gearbox.

  2. #2
    Join Date
    Aug 2003
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    Christies Beach
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    At work, depending on the machines speeds we used Shell Tonna 46 or 68, really slow rpm, heavy load boxes used 220! Here is a Shell PDF
    The secret to creativity is knowing how to hide your sources.
    Albert Einstein

  3. #3
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    Sep 2006
    Location
    Australind , WA
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    My enquires on this subject lead to a hydraulic oil ,like Tellius 46. Hydraulic oil, I am told, does not keep metal particles suspended in the oil so they do not damage any of your gears.

  4. #4
    Join Date
    Jun 2004
    Location
    Kyabram. Vic
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    625

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    D D

    Unfortunately hydraulic oil usually comes in 20 ltr or larger drums.

    I have an older Taiwanese lathe which tends to leak somewhat. An engineer suggested that I change the original heavy to automatic trans oil. This allowed me to use top speed comfortably; but leaked like a mongrel.
    I recently drained what was left and replaced it with compressor oil which is a bit heavier. Works like a charm and doesn't leak as much.

    The compressor oil was recommended on an engineering forum.

    Toggy.

  5. #5
    Join Date
    Jan 2004
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    Mackay North Qld
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    Default

    A 15 to 20W non detergent oil.
    I used the Castrol version, Hy Spin I think its called. Available in 5L bottles.

    Seems to work ok

    Grahame

  6. #6
    Join Date
    Apr 2008
    Location
    Perth
    Posts
    269

    Default Lathe gearbox oil

    Thanks everyone for the info, just have to decide which to use now, I already have a 20 litre drum of Tellus 46 in the back shed used to refill the tank on the Kevrek crane mounted on the back of my ute, I thought that might be a bit light to use as the oil in the lathe is of a heavier grade. The lathe is Chinese built, 240v with 9 speeds.

    Once again thanks for the info.

    Dermott

  7. #7
    Join Date
    Jan 2006
    Location
    Blue Mountains NSW Australia
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    408

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    I dredged up this old thread because my brother gave me some advice on this subject last night.

    He uses Mobil 1 synthetic in his machines. My brother has been in the machining game for thirty five years, so I guess he has some knowledge on the subject. Anyway.... I am intending to switch to synthetic. I will report back if it doesn't go so well.

  8. #8
    Join Date
    Jan 2002
    Location
    Melbourne, Aus.
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    68
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    0

    Default

    Yeah, I used this in my modern Trumpy; good stuff.

    Might be a bit of overkill in a stationery engine tho.
    Cheers, Ern

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