How to measure the size of an O-ring
2023/09/20
Sealing ring inner diameter gauge: used for measuring the average inner diameter of flexible and rigid materials, as well as accurately measuring the average inner or outer diameter of O-ring rubber seals.
Application scope: O-ring seals, vacuum rubber gaskets, rotary seals, etc.
Structure: The sealing ring ruler is composed of only one elastic steel strip, with main and auxiliary rulers engraved on both ends. The minimum division value of the main ruler is 0.5mm, and the minimum division value of the auxiliary ruler is 0.05mm.
O-ring
Features (compared to vernier calipers) and usage:
High accuracy: By measuring the diameter through the circumference, the marking error during production is reduced by π times and reflected in the measurement results. φ The accuracy of measuring with a ruler (π ruler) above 500mm is higher than that of a vernier caliper of the same specification, and the larger the diameter, the higher the accuracy of the measurement.
Sealing ring inner diameter measuring ruler and O-shaped rubber ring inner diameter measuring ruler are convenient for measurement: Inner diameter measurement: When measuring, place the measured piece flat on a table or glass plate, roll the π ruler into an inner diameter smaller than the measured ring, use the measuring auxiliary magnetic column to place it inside the ring, apply a certain thrust, and when the π ruler is close to the measured piece, use the vernier principle to read, and can directly and accurately read the average inner diameter of the measured O-shaped ring without conversion.
Outer diameter measurement: When measuring, place the tested piece flat on a table or glass plate, and roll the π ruler to a diameter greater than the outer diameter of the tested ring. When the π ruler is attached to the tested piece, use the vernier principle to read, and directly and accurately read the average outer diameter of the tested O-ring without conversion (subtract two feet from the reading value). Measurement is not limited by the environment and is easy to carry and store.
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