Looking for Dielectric Couplings

  • Thread starter Thread starter marlonbRjtcpp
  • Start date Start date
  • Tags Tags
    Dielectric
AI Thread Summary
The discussion focuses on the search for dielectric couplings, specifically for use in HVAC systems, with a shaft diameter of around 3 inches. The user is seeking information on businesses that sold these couplings during the mid-1990s and is curious about the torque specifications and the feasibility of using dielectric shafts, which can withstand high voltages, such as 750,000 volts. A reference is made to a historical setup at Fermilab involving a Cockroft Walton generator and a high-voltage shield. The user expresses difficulty in finding relevant suppliers or historical information about these components. The conversation highlights the niche nature of dielectric couplings and their applications in high-voltage environments.
marlonbRjtcpp
Messages
3
Reaction score
0
Hello,

I am looking to purchase Dielectric couplings. I am located in the east coast (NY/NJ).

I am having trouble finding these, any help is appreciated.

Does anyone know any businesses who sold these during the mid 1990's ?
 
Engineering news on Phys.org
Dielectric universal shaft joint couplings? What shaft diameter and what torque? What about using dielectric shafts? I have seen one hold off about 750,000 volts.

Bob S
 
Bob S said:
Dielectric universal shaft joint couplings? What shaft diameter and what torque? What about using dielectric shafts? I have seen one hold off about 750,000 volts.

Bob S

thanks for your response

I hope this will help you i am looking for ones in this context "coupling was used in an HVAC
system" "3 inch"
 
repost
 
The attached photo shows the 750,000-volt Cockroft Walton at Fermilab. The tower on the right is the Cockroft Walton. The tower at left is the high voltage shield with the ion source. At the base is a multi-horsepoawer motor. There is a vertical Lucite or Plexiglass rod, ~2" or 3" in diameter, that the motor runs to drive an alternator inside the high-voltage shield. Unfortunately, the rod is hidden from view. It was built ~1970. I do not know of anybody who remembers where it came from.

Bob S
 

Attachments

  • FNAL_Cockcroft_Walton.jpg
    FNAL_Cockcroft_Walton.jpg
    33.6 KB · Views: 440
I have Mass A being pulled vertically. I have Mass B on an incline that is pulling Mass A. There is a 2:1 pulley between them. The math I'm using is: FA = MA / 2 = ? t-force MB * SIN(of the incline degree) = ? If MB is greater then FA, it pulls FA up as MB moves down the incline. BUT... If I reverse the 2:1 pulley. Then the math changes to... FA = MA * 2 = ? t-force MB * SIN(of the incline degree) = ? If FA is greater then MB, it pulls MB up the incline as FA moves down. It's confusing...
Hi. I noticed that all electronic devices in my household that also tell time eventually lag behind, except the ones that get synchronized by radio signal or internet. Most of them are battery-powered, except my alarm clock (which runs slow as well). Why does none of them run too fast? Deliberate design (why)? Wrong temperature for quartz crystal? Decreasing battery voltage? Or just a coincidence?
Back
Top