Worm gear material

Does anyone know the chemical composition and mechanical properties of
Rd65 VL22 Copper alloy. Or where I could get it from. Also the
Standard from which this material comes from would be useful.
I have searched the internet and am unable to find its specification.
Thanks,
Martin
Reply to
colenum
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all I could google was...
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"Materials - The worms are case-hardened; the bore and worm flanks are ground. Standard worm gears are made from VL22, a copper-zinc alloy with aluminium, silicon and manganese additives."
Reply to
CWatters
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has a "contact us", why not give them a try?
Androcles.
Reply to
Androcles
Dear CWatters:
Copper and zinc make brass. You did a lot better than I did. I could find no listing of anything useful on google with the information supplied. Good work!
David A. Smith
Reply to
N:dlzc D:aol T:com (dlzc)
"N:dlzc D:aol T:com (dlzc)" wrote in message news:xNIQd.69767$Yu.39955@fed1read01...
I guessed that the Rd65 part might refer to the percentage of Copper (or something like that) and deleted it from the search. eg
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Reply to
CWatters
You are possibly mistaken in thinking this designates a copper/brass/bronze alloy.
Accordingly, you could go with an engineering approach: what material would I like for a worm? A phosphor bronze, likely
Brian Whatcott Altus OK
Reply to
Brian Whatcott
"N:dlzc D:aol T:com (dlzc)" wrote in message news:xNIQd.69767$Yu.39955@fed1read01...
I thought 9 copper : 1 tin was brass. And that 1 copper : 9 tin was bronze. I thought some math textbook from when I was a kid said this. Maybe 9 copper : 1 tin for BRONZE would be okay, judging by a few internet pages. Is there some other thing which is 10% copper, 90% tin? I saw some mention of pewter with this kind of ratio. To the OP's question, I didn't even know that worms had gears.
j
Reply to
operator jay
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Reply to
Sam Wormley
Dear operator jay:
...
No. Copper-zinc alloy is brass, in "any" proportion. Don't use brass in vacuum, as zinc has a vapor pressure. Copper-tin alloy is bronze.
Mechanical ones do!
David A. Smith
Reply to
N:dlzc D:aol T:com (dlzc)
I dont think that "Rd65 VL22 Copper alloy" is an ASTM designation. This could be a trade name or part number. Not sure.
I would try to find some worm gear manufacturers online and see which alloys they use. I'm betting it's ChromeVanadium Steel.
If it's a copper alloy, it might be an Aluminum Bronze, which is frequently used for gears.
Reply to
Lefty
1) The VL22 is a special gear bronze - a bronze gear alloy with apprently no lead. Aka known as Aeterna (the mfg?)
2) Are you sure about the R "d" 65? If it is actually a "b", that would be the hardness used in bronze gears. The D scale is a lot harder than the C used for steel or the B used for bronze. The D would show up if the bronze was somehow face-hardened.
3) I think, but I wouldn't bet the house, that it is from a French or German mfg
4) If you had a CDA (Copper development Association) number for the alloy, the alloy that was registered by the manufacturer to get a number, it would help a lot.
Reply to
--
in
properties of
specification.
flanks are
supplied.
Brass is a Cu--Zn alloy
Bronze is a Cu--Sn alloy.
Reply to
Franz Heymann
The only reference on the web I could is this company....
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Quote: "Standard worm gears are made from VL22, a copper-zinc alloy with aluminium, silicon and manganese additives"
Reply to
CWatters

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