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.
How to find the circumference of a circle. 1  Determine the radius of a circle. Let's assume it's equal to 14 cm. 2  Substitute this value to the formula for circumference: C = 2*Ï*R = 2*Ï*14 = 87.9646 cm. 3  You can also find the area of a circle: A = Ï * R^2 = Ï * 14^2 = 615.752 cm^2. Finally, you can find the diameter - it is simply two times the radius: D = 2*R = 2*14 = 28 cm. Use our circumference calculator to find the radius when given circumference or area of the circle.