Question on Calculating Force on a Roll Pin
Question on Calculating Force on a Roll Pin
(OP)
I am not sure how to calculate the force due to compressing the spring pin (diameter) into a hole.
Can anyone enlighten me? Is the Force exerted on the hole simply delta diameter * Spring force?
This is the type of pin I am refering to;
http ://www.mic romatic.co m/images/3 /300x300/1 00-302.jpg
On my spec sheet I see;
JIS B2808-1990
and
Strength Firmness = 70+/-5 (JIS K 6301)
(I don't have any information on this JIS K 6301 specification. Could anyone enlighten me?)
Can anyone enlighten me? Is the Force exerted on the hole simply delta diameter * Spring force?
This is the type of pin I am refering to;
http
On my spec sheet I see;
JIS B2808-1990
and
Strength Firmness = 70+/-5 (JIS K 6301)
(I don't have any information on this JIS K 6301 specification. Could anyone enlighten me?)





RE: Question on Calculating Force on a Roll Pin
coefficient of static friction for steel to steel is
.15 to .25
Hope this will help you
RE: Question on Calculating Force on a Roll Pin
The plastic body that the roll pin gets pushed into has a smaller diameter hole then the OD of the Roll pin.
I am trying to see the stress in the plastic eventually. But to get there, I need to figure out a way to approximate the force the roll pin exerts on the plastic body when it is inserted.
I think the only thing I can measure is an approximate diameter of the spring pin when inserted. Use this to approximate the force the pastic sees.
I am not sure how to get a "spring force" from the JIS B2808 or Strength rating of 70 (what unit that is?).
RE: Question on Calculating Force on a Roll Pin
JIS K 6301 is a standard describing mechanical testing methods. I believe the Strength Firmness is the double shear strength of the pin in kgf/cm2.
Regards,
Cory
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RE: Question on Calculating Force on a Roll Pin