It would be interesting if someone could compare the resistance of these to the ones from FT. Relic noted that they might be a beryllium alternative and delivered low resistance with good performance. Post 52.
In for 20 please. Thanks for the effort on this Nitro!
another member from Michigan that's very close to me
All the specs on the springs please?
OAL, Wire Diameter, Base diameter, Top diameter, Temperature range before spring tension is lost, Compression rate, (how many pounds of force to compress the spring).
I would be in for 50 to 100 if the specs come out good. I don't want a spring that compresses easily or looses it's spring when soldered, as beryllium does sometimes.
More info here >>> http://www.leespring.com/product_spec.asp?springType=C&partnum=LBC028A01AAA
Thanks. Here's the specs.
Specification | |
Part Number |
LBC 028A 01 AAA |
Outside Diameter | 0.216 in |
Hole Diameter | |
Wire Diameter | 0.028 in |
Load At Solid Length | 2.135 lb |
Free Length | 0.355 in |
Rate | 9.37 lb/in |
Solid Length | |
Rod Diameter | |
Number of Coils | |
Total Coils | 4.7 |
Finish | PRE-COATED WITH SILVER |
Material | BECU |
That equates to:
OD 5.5mm
Free Length 9.0mm
Wire Diameter 0.7mm
Appreciate the info. I will need to pass, too small for my needs.
Thanks
If any other Aussies want in on this I'll reship for us if needed.
If this is the size of the spring in this group buy it is mostly interesting for small EDC type lights, while beryllium springs makes a real difference at many amps. I'm still in for a few though, but only about 10. If the springs are bigger, say diameter 10mm, length 12mm, I will want more.
… and wire diameter of .9 - 1.0mm
I’ll take 10. Just let me know when this will happen.
I’m in for 20.
Thanks. Generous offer.
What's the alloy used for these springs, there are several beryllium copper alloys.
Sooo, I'm still desperate for springs that do not require copper braiding, what's up with this attempt?
Anyone else who is going to pick this up? Not me, I'm in Europe, someone in the US who has access to the few companies there that make them, or someone with chinese connections.
I found these on Amazon (again for the US-based; they do not ship to Europe anything else but books):
Not the exact type of springs that we want but they would fit some mods?
I might have a European lead on them. A small danish company specialises in springs for electrical breakers and such. They have ... similar to what we want but not quite.. It may take a single run of them. They do not list MOQ on their site but mentions that it is subject to order details.
Edit: Missing letters and halfwit sentenses. I am tiired!
Funny you're onto that, I asked for a quote from a dutch company also, two days ago. Haven't heard back from them yet, I fear for a steep price...
There are a couple of sellers of BeCu springs on Ebay right now… they look about the right size for a lot of lights.