Connectors for SON Hubs and for B&M Luxos headlight?
I'm looking for the female push-on connectors for the SON and the B&M Luxos headlamp. The brass one for the headlamp has spring and is not making good contact and I want some spares. I can make it work for a time by carefully compressing with a fine pliers, but it won't last a real long time. I'd really like to just make up a new lead to go up the fork leg, with new contacts. I found that seeming American equivalents are not good matches, also needing to have their shapes adjusted to make them fit.
Anybody have some or know of several sources? I could use 6 pieces of each. I'd also like a source for Teflon or FEP-insulated hookup wire, if I actually make up new ones. |
I can't help with the hub connectors. I use the SP/Shimano connectors.
I think all the B&M lights use the same 2.8mm spade connectors, you probably just need to squeeze them a hair tighter to stay on. When mine have fallen off, I just squeezed them a hair tighter with a pliers. https://cimg7.ibsrv.net/gimg/bikefor...87cd12a1f7.jpg |
Originally Posted by Road Fan
(Post 22897323)
I'd also like a source for Teflon or FEP-insulated hookup wire, if I actually make up new ones.
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At the hub, I recommend switching to the coax connectors. They are vastly superior to the terminal lug connectors
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If at the hub I just buy the SON connectors which I'm sure Peter White will have
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Originally Posted by unterhausen
(Post 22898348)
At the hub, I recommend switching to the coax connectors. They are vastly superior to the terminal lug connectors
Or do you mean the simple single-contact single-circuit banana connector? |
Originally Posted by Road Fan
(Post 22899009)
Unterhausen, what coax connectors? Who sells them? What style? How are they attached to a standard SON hub with bladed connections?
Or do you mean the simple single-contact single-circuit banana connector? Jan sells a kit |
You can also get them from Peter J. White cycles
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Originally Posted by Road Fan
(Post 22899009)
Unterhausen, what coax connectors? Who sells them? What style? How are they attached to a standard SON hub with bladed connections?
Or do you mean the simple single-contact single-circuit banana connector? |
I have too much experience fixing other people's SoN hub connections by the side of the road while I'm being eaten alive by mosquitos. It only takes one time forgetting to unplug the connectors while taking the wheel off before it's worth $30 to me. I know that price is a bit ridiculous, but having lights vs. not having lights doesn't really have a price. I used to bring a crimper to events for exactly this problem, because people would put their bike in their car with the wheels off and the wires ripped out of the connectors. I doubt that Schmidt would endorse this feature of their coaxial connectors, but it does work that way.
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https://cimg1.ibsrv.net/gimg/bikefor...e6168101e4.jpg
One nice thing about the coax that I didn't think about until I was riding home is that if you run a wide body it's easier to to connect since you can put the spade end on then mount the wheel |
Originally Posted by Germany_chris
(Post 22899345)
I’ll send you a picture tonight when I get home. IMHO the coax is only useful if you pull the front wheel fairly often.
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You can get the coax wire from Peter White or other sources. It's a fairly normal coax cable except the inner wire is stranded. On edit: my memory failed me, I think it's just a two connector cable. Is it supernova that has a shield-like drain wire? Got to go look in my lighting supplies parts organizer.
You can see the innards of the connector on Peter White's page. https://www.peterwhitecycles.com/sch-wiring.php Here is what it looks like before construction and in a soldering fixture that they sell https://cimg1.ibsrv.net/gimg/bikefor...1c9769b713.png https://cimg2.ibsrv.net/gimg/bikefor...809b0d08ef.png |
I think the biggest problem with water intrusion is that it might corrode together. It seems like this connector doesn't have so much surface area that would be an issue, and you probably should use dielectric grease to stop it from happening. It does have that rubber seal.
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Originally Posted by Road Fan
(Post 22900152)
Thanks! I have so much experience with ham-fisted misuse of spade connectors and resulting breakage, that one of two remove/replace cycles with no likelihood of breakage will help me a lot, at least make me feel a lot better! How does the connector, in this case, the male, tehe plug, water-seal against the coax outer insulation? Or does it want a twisted pair? In my aerospace tooling I always used shielded twisted pairs. Water exposure was not a common problem, unlike on a road vehicle.
https://live.staticflickr.com/5779/2...95bfb3_c_d.jpg I've probably shared this in other threads too. These are just basic pins and sockets from Amp (formerly Deutsch). I've got the Digi-key p/n's if anyone is curious. They are high quality and nickel plated. Never had any issue with corrosion, even with frequent exposure to rain and snow. Obviously, heatshrink tubing is used to insulate and serve as strain relief. Steve in Peoria |
Originally Posted by steelbikeguy
(Post 22902937)
my own approach to adding a low-effort connection in series with the SON dynamo connectors:
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Originally Posted by unterhausen
(Post 22902971)
Peter White shows a similar thing using the coax connectors, but I think the rationale in his case was he wanted a splitter. I have used the Supernova connectors and RC connectors in a similar manner as yours. The Supernova connectors got really hard to disconnect after a few years of not being disconnected. I probably didn't use any dielectric grease on them, which likely would have made it a lot easier.
I've thought about using a proper connector with a shell and two pins (or sockets) in it, partly because you can get connectors with environmental seals (such as the Deutsch/Amp models). Unfortunately, they tend to be much too bulky for this sort of application (imho, etc). The nickel plated contacts have largely eliminated the need for a sealed connector shell, though. I do like the idea of using common electrical connections, such as what RC cars use. They are a model of Molex, aren't they? Any chance that they are available with a higher grade of plating than the tin plated ones I've seen? I haven't used dielectric grease on my SON connections, and haven't noticed any corrosion... but also haven't tried to take them off. Most greases tend to migrate or will get washed off, so I'm not sure how effective dielectric grease would be over the long term. Perhaps marine bearing grease would be a good choice?? Steve in Peoria |
@steelbikeguy, I really like that. Can you please supply the part numbers? Thanks!
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Originally Posted by steelbikeguy
(Post 22902996)
I imagine that a coax connector is simpler for a lot of folks.. if only because there's just one thing to hook up.
I've thought about using a proper connector with a shell and two pins (or sockets) in it, partly because you can get connectors with environmental seals (such as the Deutsch/Amp models). Unfortunately, they tend to be much too bulky for this sort of application (imho, etc). The nickel plated contacts have largely eliminated the need for a sealed connector shell, though. I do like the idea of using common electrical connections, such as what RC cars use. They are a model of Molex, aren't they? Any chance that they are available with a higher grade of plating than the tin plated ones I've seen? I haven't used dielectric grease on my SON connections, and haven't noticed any corrosion... but also haven't tried to take them off. Most greases tend to migrate or will get washed off, so I'm not sure how effective dielectric grease would be over the long term. Perhaps marine bearing grease would be a good choice?? Steve in Peoria |
Originally Posted by steelbikeguy
(Post 22902937)
my own approach to adding a low-effort connection in series with the SON dynamo connectors:
https://live.staticflickr.com/5779/2...95bfb3_c_d.jpg I've probably shared this in other threads too. These are just basic pins and sockets from Amp (formerly Deutsch). I've got the Digi-key p/n's if anyone is curious. They are high quality and nickel plated. Never had any issue with corrosion, even with frequent exposure to rain and snow. Obviously, heatshrink tubing is used to insulate and serve as strain relief. Steve in Peoria |
Originally Posted by noglider
(Post 22903002)
@steelbikeguy, I really like that. Can you please supply the part numbers? Thanks!
machined versions: Amp p/n AT60-202-20141 machined pin, 20-22 gauge wire Digi-key p/n 889-1462-ND Amp p/n AT62-201-20141 machined socket, 20-22 gauge wire Digi-key p/n 889-1471-ND stamped versions: Amp p/n AT60-16-0122 stamped pin, 16-18 gauge wire. Digi-key p/n 889-1048-1-ND Amp p/n AT62-16-0122 stamped pin, 16-18 gauge wire. Digi-key p/n 89-1049-1-ND The machined versions are a bit nicer in construction and finish, perhaps, but a bit more costly. Not a big deal in small quantities. The stamped ones are made from flat sheets of metal, stamped out with a die and then formed to shape. To my knowledge, they function just as well. Steve in Peoria |
Originally Posted by Road Fan
(Post 22903033)
Go back to where you used to work, look up your team's senior technician/technologist (maybe he's on LinkedIn), ask him/her what's the best goop for connector sealing, and use that. Or maybe I can find mine - he's on LinkedIn all the time! I haven't seen a Group for fabricating wiring harnesses for reliable electrical systems.
Of course, our machines were intended for a harsher environment than autos see (I hope), and we could charge a bit more (a lot more?) for the parts. Steve in Peoria |
Originally Posted by steelbikeguy
(Post 22902996)
I do like the idea of using common electrical connections, such as what RC cars use. They are a model of Molex, aren't they? Any chance that they are available with a higher grade of plating than the tin plated ones I've seen?
I went looking at Peter White's site and now I want a Supernova M99 DY pro |
Originally Posted by steelbikeguy
(Post 22903098)
Here are the Amp part numbers and the associated Digi-key p/n's. Of course, you can type the Amp p/n into the search field on digikey.com and it'll pull up the Digi-key number too....
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Originally Posted by 2_i
(Post 22903745)
... and turned to the straightforward spade 2.8mm ones that just work - primitive can be good on a bike.
That said, I use SP and Shimano hubs, not Son, so I have no experience with Son connection. |
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