Neubaten
Industrial
- Oct 29, 2006
- 129
Hi guys,
I have a question for you that may seem trivial, but which I cannot seem to answer by myself.
You have a cilindrical CRES bushing fit in a hole, and a low alloy steel cad plated pin that gets into the ID of that hole, and for whatever reasons too long to explain, you have to choose to apply a MoS2-epoxy Solid Film Lubricant layer in only one of them, either the internal diameter of the bushing or the external of the pin.
Which one would you choose?
They belong to a mechanism that locks a folding element.
The pin engages/disengages the bushing with a very low frecuency, say 20 times a year maximum, and the normal condition is being locked, where the pin/bushing system is likely to suffer a low shear stress.
The film is also intended as a protection for galvanic corrosion between the pin and the bushing.
Btw, I cannot avoid to make a malicious/gross observation that unintentionally came to my mind while reasoning about this problem: Facing a similar problem, the Supreme Engineer (name it God or Mother Nature or whatever fits you) decided to put the lubrication in the bushing part of the mechanism. If you know what I mean...
;-)
Should I do the same as Him?
I have a question for you that may seem trivial, but which I cannot seem to answer by myself.
You have a cilindrical CRES bushing fit in a hole, and a low alloy steel cad plated pin that gets into the ID of that hole, and for whatever reasons too long to explain, you have to choose to apply a MoS2-epoxy Solid Film Lubricant layer in only one of them, either the internal diameter of the bushing or the external of the pin.
Which one would you choose?
They belong to a mechanism that locks a folding element.
The pin engages/disengages the bushing with a very low frecuency, say 20 times a year maximum, and the normal condition is being locked, where the pin/bushing system is likely to suffer a low shear stress.
The film is also intended as a protection for galvanic corrosion between the pin and the bushing.
Btw, I cannot avoid to make a malicious/gross observation that unintentionally came to my mind while reasoning about this problem: Facing a similar problem, the Supreme Engineer (name it God or Mother Nature or whatever fits you) decided to put the lubrication in the bushing part of the mechanism. If you know what I mean...
;-)
Should I do the same as Him?