recession is obviously severe, its output cost so far has been much smaller than that of the Great Depression. Stijn Claessens is an Assistant Director and M. Ayhan Kose is a
an O-ring, a good fit is critical. O-rings are measured in millimetres. Place the O-ring on a clean, flat, level surface. Determine the inside diameter. Use a ruler to measure from one inner edge to another. To measure the outside diameter, use a ruler to measure from one outer corner of the O-ring to the other outer corner. Measure cross section. Place the O-ring into a vernier calliper. Lightly clamp the jaws of the calliper onto the O-ring, but do not compress it. Record the thickness of the ring (the cross section). If you only have 2 of the O-ring diameters then you can determine the third diameter with the following equations: Measurements: Outside Diameter (OD) = Inside Diameter + (2 x Cross Section). Inside Diameter (ID) = OD - (2 x CS). Cross Section (CS) = OD - ID, Ã· 2. If the o-ring is cut, measure the cross section (thickness) of the O-ring and the length. Converting Length to Inside Diameter: Length Ã· 3.142 = circumference. Circumference - CS = ID.
Method 1 of 2: Using the Diameter. 1. Write down the formula for finding the circumference of a circle using the diameter. The formula is simply this: C = Ïd. In this equation, C represents the circumference of the circle, and d represents its diameter.That is to say, you can find the circumference of a circle just by multiplying the diameter by pi.n this formula, r represents the radius of the circle. Again, you can plug Ï into your calculator to get its numeral value, which is a closer approximation of 3.14. 2. Plug the given radius into the equation and solve.