It is under static load once assembled. It is put in service only for a few hours and it might see minor variations in the load during that time.
BTW I did study some inclusion rating on this and nothing jumped out!
krisreliable.
Yes it is closed & ground! I do think it is highly stressed as well looking at the shear stress values at the max deflection. Here is a picture; let me know what you think! Thanks.
krisreliable.http://files.engineering.com/getfile.aspx?folder=d88635b2-2de6-4b09-80ea-c53005935a4f&file=DSC01933.JPG
sorry about that!
Spring material - Chrome vanadium silicon
OD - 3.275 in
Total & active coils - 5.559
max solid height - 1.5"
free height - 5.595"
no plating
I wouldnt expect to see any temperature. its drilling tool. but it is isolated from drilling mud by seals.
krisreliable
Thanks for the response guys. The spring did fail and yes it is a compression spring.
The tool was pre-loaded (55% deflection) during assembly and kept in the shop for about a month. Was put in service for about a few hours (75% deflection) and was again put back in the shop for a couple of...
I am currently looking at a spring failure which is designed to be pre-loaded during assembly @54% deflection (400 lbs of load) and could see deflection upto 75% during service.
What are some of the design factors that I should consider to verify if this spring is rated for this application...
