The O-ring size measurement and selection tools are selected according to customer requirements. The measurement methods are roughly divided into two types: one: dark light measurement, and two: bright light measurement. Let's follow the editor of Best moulded rubber o-rings products to understand the measurement method!
1. Dark light measurement is simply to measure the shadow of the O-ring. We generally use a projector for this measurement tool. Generally, O-rings are measured by their outer diameter and inner diameter. When measuring the size of O-rings, the diameters are measured at four points on the upper, lower, left and right of the O-ring. The following methods are suitable for measuring O-ring outer and inner diameters:
1. On the projector, adjust the multiple size of the lens according to the size of the product, and adjust the lens clearly.
2. Place the coordinates on one edge of the o-ring, close to the coordinates of the projector;
3. Find the icon marked with a circle on the projector, click the icon, and then press the OK button, so that a point is found;

4. Move the coordinates to the second point of the O-ring, and also move the coordinate line to the edge of the O-ring, and then press the OK button; and so on, after taking the four points of the O-ring , a diameter is measured.
Second, the light measurement, that is, the measurement of the O-ring itself. For this kind of measurement tool, we generally use an optical image measuring instrument. The method is basically the same as the projector.
The above is the editor of Best moulded rubber o-rings products: a brief introduction to the knowledge of O-ring size measurement.