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Size chart


Introduction:In numerous industrial and automotive applications, O-rings are crucial components for ensuring sealing performance. Selecting the correct size of the O-ring is essential for preventing leaks and extending the equipment's lifespan. Our O-ring size chart combines industry standards with practical application experience, providing you with a reliable reference resource.

Overview of O-ring Size Chart:Our size chart encompasses O-rings ranging from standard sizes to custom specifications, suitable for various working conditions. You can quickly find the appropriate O-ring based on inner diameter, outer diameter, and cross-sectional dimensions.

Steps for O-ring Selection:

  • Assess Application Requirements: Firstly, determine the temperature, pressure, and chemical environment your equipment needs to withstand.

  • Measure Existing O-rings: Use calipers or micrometers to precisely measure the dimensions of existing O-rings.

  • Select Material: Choose suitable materials based on the working environment, such as oil-resistant NBR, high-temperature-resistant FKM, or chemical-resistant EPDM.

  • Consider Working Conditions: Ensure the selected O-ring can adapt to the dynamic and static working conditions of the equipment.

Industry Standards and Certifications:We adhere to international standards such as ISO, AS, SAE, etc., to ensure the quality and performance of O-rings. All products undergo rigorous quality control processes.

Call to Action (CTA):Download our O-ring size chart now or contact our expert team for personalized advice. We are committed to providing you with the best sealing solutions.


Size chartAS 568  X-ring.pdf


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Hebei Jinwo Machinery Technology Co., Ltd.