When mounting those 'gas springs' as you are calling them, in the vertical position, always put the rod on the lower end. There is an oil inside the tube and it keeps the seal around the rod lubricated and swollen, to make the seal last longer. Putting them in a horizontal position like you just did with that door, plan on replacing them every few years as the seals dry out and loose their pressure assist. I used to buy 20" and 24" gas door props in bulk for my business and even going through a middle man, they were only costing me $3 each, including the ball mounts on their own brackets.. $70 is just ripping off the public Imo..
The reason I mentioned your 'gas springs', is there are no springs inside them.. They are filled with nitrogen gas. As for what they are called, it seems that a quick Amazon search shows several different names, including your gas springs. I used to build truck caps, covers, toppers, camper shells - what ever they are called in your area, for the back of pick-up trucks... and we called them gas props or gas door props.. (as we used to also have a true spring prop that we used as a standard feature). I've also heard door shocks, door lifts, door struts etc... A little trick with them, if you mount the ctr. of the top ball 4 1/2" down from the center of a top hinge, and the lower ball mounted to the door jamb with the center 1/4" lower than the closed length of the prop (be it spring or gas), the door will hold itself up when opened or closed when shut. That is how we got the doors for the truck caps to hold themselves closed when shut... Hope this helps some..
@@erniezimmer7187 makes since, I'm a mechanical engineer and I work in industrial maintenance we use the generic gas spring because that's the industry standard term and because compressible fluids such a s nitrogen have an associated k value or spring coefficient the same as a mechanical spring so when designing a spring system the math is the same, and in use they generally function to serve the same purpose. Although it's common in the design notes to name them according to what the specifically do in a system, ie. Door prop.
Ok
When mounting those 'gas springs' as you are calling them, in the vertical position, always put the rod on the lower end. There is an oil inside the tube and it keeps the seal around the rod lubricated and swollen, to make the seal last longer. Putting them in a horizontal position like you just did with that door, plan on replacing them every few years as the seals dry out and loose their pressure assist.
I used to buy 20" and 24" gas door props in bulk for my business and even going through a middle man, they were only costing me $3 each, including the ball mounts on their own brackets.. $70 is just ripping off the public Imo..
is there another name for them other than gas spring?
The reason I mentioned your 'gas springs', is there are no springs inside them.. They are filled with nitrogen gas.
As for what they are called, it seems that a quick Amazon search shows several different names, including your gas springs. I used to build truck caps, covers, toppers, camper shells - what ever they are called in your area, for the back of pick-up trucks... and we called them gas props or gas door props.. (as we used to also have a true spring prop that we used as a standard feature). I've also heard door shocks, door lifts, door struts etc...
A little trick with them, if you mount the ctr. of the top ball 4 1/2" down from the center of a top hinge, and the lower ball mounted to the door jamb with the center 1/4" lower than the closed length of the prop (be it spring or gas), the door will hold itself up when opened or closed when shut. That is how we got the doors for the truck caps to hold themselves closed when shut...
Hope this helps some..
@@erniezimmer7187 makes since, I'm a mechanical engineer and I work in industrial maintenance we use the generic gas spring because that's the industry standard term and because compressible fluids such a s nitrogen have an associated k value or spring coefficient the same as a mechanical spring so when designing a spring system the math is the same, and in use they generally function to serve the same purpose. Although it's common in the design notes to name them according to what the specifically do in a system, ie. Door prop.