Although O-rings already have their own production standards, many users need to customize due to special needs, so it is very important to determine whether the size of the product meets the requirements for use, so how to measure the size? Today NBR rubber o-rings supplier china is small Let me introduce two methods. The tool for measuring the size of the O-ring can be selected according to the customer's requirements. Generally, the measurement methods can be divided into two types, one is dark light measurement, and the other is bright light measurement.
1. Dark light measurement.
In simple terms, this measurement method is actually measuring the shadow of the product. When measuring, you need to use a projector. Usually the detected dimensions are the outer diameter and the inner diameter. When measuring, it is necessary to measure the diameter of the upper, lower, left and right points of the product. The following methods are applicable for both outer and inner diameter measurements:

1. On the projector, the size of the lens multiple can be adjusted according to the size of the product, and the lens must be adjusted clearly.
2. Place the coordinates on one edge of the product, which should be close to the coordinates of the projector.
3. You can find an icon marked with a circle on the projector. Press this icon to confirm, and you can find one of the points.
4. Then move the coordinates to another point of the product, and use the same method to take four points to measure a diameter.
2. Brightness measurement.
This method measures the product itself, and generally we need to use an optical image measuring instrument. The specific measurement method is basically the same as that of the projector, and you can apply it flexibly.
The above is the NBR rubber o-rings supplier china editor's description: a brief introduction to the measurement method of O-rings.