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need help selecting acid and rosin free grease

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  • need help selecting acid and rosin free grease

    I am working on a machine which has a worm/pinion gear, the latter of which is made of brass. The manufacturer calls for acid and rosin free grease. This document was translated from German, thus is not guaranteed to use the best choice of words.

    When I search for greases I find they are generally quite expensive and provide few technical details.

    Can anyone help me out? I only need a teaspoonful or so. Just looking to buy a small tube.

    metalmagpie

  • #2
    Originally posted by metalmagpie View Post
    I am working on a machine which has a worm/pinion gear, the latter of which is made of brass. The manufacturer calls for acid and rosin free grease. This document was translated from German, thus is not guaranteed to use the best choice of words.

    When I search for greases I find they are generally quite expensive and provide few technical details.

    Can anyone help me out? I only need a teaspoonful or so. Just looking to buy a small tube.

    metalmagpie
    Sounds like some historic specification.
    Can you tell us more about the machine?
    I'd use any grease that is compatible with brass, IE generic purpose lithium or calcium grease WITHOUT EP additives.

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    • #3
      Did a digging on old Google books search and most of the mentions in literature about "acid and rosin free grease" are about 100 years old.

      Germans seem to still use this when they specify something but I guess its more of old habit?

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      • #4

        When I search for greases I find they are generally quite expensive and provide few technical details.
        Further indirect proof that this would be just 100 year old German habit:

        Wuerth(German company) seem to specify acid- and resin free for all of their greases:
        https://eshop.wurth.ie/Product-categ...gid/en/GB/GBP/

        These are just "normal" lubricating greases that I can buy here in Europe for something like a 4 dollars per catridge.

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        • #5
          I think you mean to be looking for "RESIN" free grease.
          Many chain lubes qualify; https://www.amazon.com/nextzett-9605.../dp/B001KXIHFG

          Oh, yeah, didn't see what Matt posted.
          Len

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