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Old 17th April 2013, 12:04 AM   #1
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Default Star Grounding Hub Connector

In my first job after I moved to Cali (early 80s) I worked for a firm that made 2-way radio test gear. While there, I encountered a curious bit of hardware meant for providing a central star grounding point on a chassis, It consisted of a little turret that you screwed down to the chassis. It had on top a circular hub pierced all around with holes, so you could insert all the ground wires you wished to terminate at a given point. My colleagues used to call them "ground wheels", but if you search by that term or other obvious variants, you get everything but that. Does anyone know the exact name for this part? Engineering is like magic in some ways - if you don't invoke the demon by his exact name, he won't come.

Last edited by wrenchone; 17th April 2013 at 03:00 AM.
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Old 17th April 2013, 02:57 AM   #2
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uuuummmm... I am pretty sure that is known as the small round metal thingie with holes in it?

Actually, I've never laid eyes on one that is commercially made.

Looking forward to the answer!

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Old 17th April 2013, 03:04 AM   #3
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In absolute desperation I may call local distributor Olander Fasteners and ask them. They are the purveyors of all sorts of weird fastener-related kit to Silicon Valley, and they've been at it since God/dog was a boy...
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Old 17th April 2013, 12:38 PM   #4
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Have you looked at electrical supply houses or similar??

I'm thinking for no good reason that these originated with sign lighting work, or theater type wiring... but I have no reason to know why my brain thinks that.

I'd expect someone else might know... also try this question on an antique radio forum?

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Old 17th April 2013, 01:14 PM   #5
jrenkin is offline jrenkin  United States
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Sigh...the early 80s are now "antique" ;-) feelin' old....
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Old 17th April 2013, 08:12 PM   #6
Enzo is offline Enzo  United States
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We just had a thread about these on some forum I frequent, forget where. Within the last few months or so.

There are the rings - like a wide washer with holes around it. Then there are the ones that look like six regular solder lugs fanned around a circle, but is in reality one six-lobed lug with center hole.

They may have some for high current work like signage, but the ones I have in mind are small sizes for use in things like amplifiers or other consumer goods.
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Old 18th April 2013, 03:03 AM   #7
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Yeah, and WHAT ARE THEY CALLED!!!!

I could not find any with a search!! Tried a few, nothing!!
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Old 18th April 2013, 04:02 AM   #8
godfrey is offline godfrey  South Africa
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I found hamster porn. Gotta be careful with those search terms!
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Old 18th April 2013, 04:09 AM   #9
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Hi,
Is this is what your are looking? 8 Point power Distribution Block

Link:Power Distribution Blocks | WiringProducts.com
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Old 18th April 2013, 04:18 AM   #10
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Same principle, but way too big for my purposes. The part in question has a small hollow shaft with a disc on top that's pierced around its periphery to accept wires from all around. The hollow shaft allows one to stack a few if you have an utterly insane star grounding situation. The actual part is about as big around as a thumbnail. I may have one or two stashed away in my junk somewhere, but you know how that goes....
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