My Boss, a Mech Eng. is convinced that placing shelving feet on small steel plates will reduce the change of overloading our concrete mezzanine. This doesn't make much sense to me but, my Elec eng dergee just didn't prepare me to explain why. Can anyone give me a hand?
Please help...
I remember using some quick release nut on various fixtures. The nut had a tapped hole of some appropriate thread with a second thru hole drilled at an angle (approx. 20 deg). The result was half of the threads missing on oppsosite sides at opposite ends of the threaded hole...
I was hoping some of you mechanical guys could help.
I'm designing a fixture and need to quantify and compare the amount of force a 3/4-10 UNC mild steel and a 1/2 -10 mild steel acme thread can develop before before failure. Each of them will be used to apply a static clamping pressure. I will...
Copied this from another forum. Someone suggested that a different forum might help....
Ran across something I don't understand today. Had to perform a megger test on an endcap per customer specs. What is being checked is the resistance between a hardcoated bearing bore liner and the endcap...
Ran across something I don't understand today. Had to perform a megger test on an endcap per customer specs. What is being checked is the resistance between a bearing bore liner and the endcap. The idea is to limit current leakage through the motor bearings. spec is 1 megohm or greater is...
Does anyone know what causes electric motor starting noise? The noise to which I am refering is that short "whine" or "chirp" which happens when a motor is accelerating to no load speed from a dead stop. It seems to occur mainly 60 hz line fed 3 phase motors.
Any input would be appreciated.
I've recently been researching propellers for wind generators. I've noticed that some props have a curved surface much like an airplane propeller while others use flat blades.
It seems as though the flat blades would be cheaper and better able to deal with high winds.
Does anyone know what...
I'm trying to design an automatic balancer to balance a fan attached to an electric motor. I've made a disc withh a groove containing a few steel balls which are free to move around to conpensate for the fans unbalance. This assembly seems to do a pretty good job of reducing vibration but...
I have some parts which were received with rust in the screw hole threads after being passivated. Could somone suggest swomthing which would clean them up without causing the threads to go oversize?
