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Due to a design constraint I will be using a Angular Contact Bearing to calculate the thrust load using a load cell. The test setup is horizontal. Is there any method to determine the loss of thrust load when using a angular contact bearing to measure the thrust load. Please let me know if you...

Hi, I am trying to find a API specification that is available or a API specification that is likely to provide the testing requirement for a downhole linear pump. Please let me know if you need more information. Mechotron

Hi All, I have a question regarding click type torque wrench. Our assembly shop utilises a click type torque wrench Which has a removal head. Beacuse of a design constraint we had to design a head. The head was longer than the standard heads. Does it affect the torque applied. We are supposed...

Hi, I am trying to find the most commonly used Quality specification for O-Rings relating to the oil industry. We supply downhole pressure containing equipments and work to API 5CT specification. Hoever i dont belive there is a specification for o-rings on that. But i did come across...

Hi Metengr I have attached a rough schematic of the set up. If you have any queries, please let me know. http://files.engineering.com/getfile.aspx?folder=3cc08968-03c8-43a3-aca0-50fd4df37cdb&file=Heat_Affected_Zone.pdf

I have a query regarding heat affected zone due to TIG welding. A 1.38" OD tube with a wall of 0.085" wall is TIG welded. There is a wire of 16AWG with the insulator running under the wall. I am trying to find out if the Heat from TIG welding will have a consequence on wire being snapped. Is...

One more question is Shear stress of a fastner 0.57% of yield or 40% of Yield.

Hi, Machinery's Handbook gives a formula for calculating the torque which is not relating to the length. I believe this assumes that there is minimum length of thread engagement available, which is calculated from the same machinery's handbook. I have a situation where i dont have the minimum...

Hi I am theoritically trying to the find the absolute, do not exceed torque. I want the thread material to go beyond its elastic limit and reach the ultimate clamping force which is in the plastic region. If you torque beyond this point the thread will elongate but the tension will drop and...

The link above is for calculating the torque within its elastic limit. But i happen to go beyond elastic limit and break it. Is there a formula for find the maximum torque (ie before the thread breaks) for threaded connections.

Hi, I have a threaded connection which has a direct tensile load to break the thread is 12,000 lbf. I am trying to find the torque that can supply this load to the thread to break it. The thread is 0.4375-20UNF. The load on thread and the torque load is perpendicular as you are aware of. can...

Hi All, I am working on a quality procedure for radiography (cast protectors). I have very less knowledge of radiography in relation to the oil industry. can i ask you what is standard that the oil industry use in terms of radiography and is there good online material that you can suggest for a...

Hi, We are designing a electronic housing for a high pressure completion. As for the qualification purpose, we are trying to test its integrity to collapse. Does anybody know of a test facility which does collapse pressure testing (ie in a tank) at 125 deg c. in Aberdeen, UK Mechotron

Hi, I have from API quoted a test requirement of 20J on the transverse direction on a 10mm x 10mm specimen for a V Notch impact test. The material supplier has done the test on the longitudinal direction and has obtained a value of 75J. Is there any means of converting this value to transverse...

Geometrical Dimensioning & Tolerencing??????? mechotron

Thanks for you replies. The dimension has to reference the start point of the thread. I persume that a text is possibly the best way. can i ask you what is a GD&T. Mechotron

Hi, I am to draft drawings for parts which has a male and female threads. These parts are required to be orientated using the threads, I am not aware of dimesioning threads with a tolerance to the orientation. The tolerance however is + or - 4.5 degree and both the threads are to start from 12...

Hi, I have recently come to know that when you are gauging a BS thread onto a ANSI gauge the gauge is showing as failed on NOGO but the BS gauge is fine. I did through browsing came to know that there were difference between these threads but i could not know what these differences are. can you...

I am looking for a Carbon steel plate that is rated to -40 degree. I did come across BS-4360 that has a material 40DD which is rated to -30 degree. Can you recommend a carbon steel that is similar to this but rated to -40 degree C. Can you recommend a british standard as above or an american...

Hi, I work in the oil industry. We are developing new products which requires mating of new pressure connections.I have been told Aircraft industry uses good and new types of mechanical connections. Some of the type of connecting that we use are threading, flanges and welding. I did find...