If your insurance company covers you for a failure of your design, and you have one design that is built several times (or 4,000 times) dont you still only have one design? Doesnt this mean that in the eyes of the insurance company its the same as any of your other one off projects?
It is a...
So i understand there are specifications for the design of valves, but included in these is there a specific spec for the diameter or size of the spindle?
I don't need the spec, a link to it or anything, just would like a yes/no answer on whether spindles have design specs on them and if so are...
I understand pvc pipe uses pipe threads, but it isnt a standard thread and i cant find the details of it, and it is these details which i was after. As you say a plastic thread is very different to a metal one, hence trying to find plastic specific designs so that i cant get it right.
My...
Thanks for that, just what i needed.
Did search google, but came up drawing blanks, didnt think of looking at the manufacturers so thats why i came here.
Im designing a piece of equipment with the need for a plastic thread. The diamater is approx 90mm
This thread will not be load bearing or need to be tightened much, just needs to do up loosely and sit there. It will also be done up and undone often.
I was thinking of a thread similar to that...
Thanks for the suggestions. It will just have water like liquid at ambient temperature and low pressure. Can't use several sheets stuck together due to the geometry of the chamber and the fact that the glue or bonding agent means its not clear. It needs to be clear so we can see an item...
Hi, i am looking for some help with selecting a material. The design is for an experimental chamber which will hopefully machined out of a single lump of the selected material. This material needs to be clear so what is occuring inside can be seen.
So basically i need a material which:
Comes...
Thanks for that. I have spoken to a few suppliers about our requirements.
Just coming back to the efficiency bit, if efficiency decreases what happens to the output torque of a gearbox, does it increase or decrease?
Just one other thought. Say you calculate the require torque at the output to be 115,000 N.m with the gear at 100% efficiency.
If the gears are actually 50% efficient does this mean the torque required is going to be 172,500 N.m (150%) of required or 57,500 N.m (50%) or another figure all...
Thanks for your help. This conveyor is moving a load of about 11 tonnes so i don't think the torque wrench idea will work, unless you know of a huge wrench!
I just needed someone to confirm that you could use the input power and the output speed to get an output torque and that i wasn't losing...
First of all nice forum.
Currently having a few issues and just want someone to check my method.
Im trying to spec a new motor and gearbox for a conveyor system inside a machine. The machine is quite old and the manuals nor the manufacture still exist. It currently uses a system of open...
