Are you looking for the best o-ring manufacturers in China but unsure where to start? With numerous factories offering a wide range of o-ring sizes and materials, choosing the right one can be overwhelming. In this article, we’ll compare the top o-ring measurement chart factories in China, helping you make an informed decision for your needs. Let’s dive in and find the perfect fit for your project.

danco o ring size chart Manufacturers and Factory China

Product Details: The Danco O-Ring kits are designed for faucet repair and other applications. The kits include multiple sizes of O-Rings, such as the 14-piece assortment which contains 8 most popular sizes (2 each of #1, #7, #8, #9, #11, #12 O-Rings and 1 each of #25, #34 O-Rings). Each O-Ring is specified by its outside diameter (OD), inside diameter (ID), and cross-section diameter (thickness). For example, the #1 O-Ring has a 21/32 in. OD, 13/32 in. ID, and 1/8 in. wall thickness. These O-Rings are made of tough, flexible rubber and are designed to withstand harsh chemicals and temperatures between 86°F

to 248°F (-30°C to 120°C).

Pros:
– Provides a better seal to prevent leaks
– Helps save water and energy
– High abrasive resistance and temperature resistance
– Inexpensive alternative to replacing the entire faucet fixture
– Includes multiple sizes to fit various applications

Cons:
– Limited to specific sizes included in the kit
– May not fit all types of faucets or applications without additional sizes
– No custom or non-standard sizes included in the standard kits

French R O-Rings, AS 568A O-Rings, JIS …

Product Details: Revata Engineering offers French R-series O-Rings in various sizes and materials. These O-Rings are part of a wide range of O-Ring selections, including standard, non-standard, and metric sizes. They are manufactured from high-quality compounds such as fluorocarbon, NBR, EPDM, and Silicone. Other special materials like Viton®, Kalrez®, Teflon®, and more are also available for unique applications. The O-Rings are designed for both static and dynamic sealing applications and are used in various industries including oil & gas, marine, hydraulic, and pneumatic systems.

Pros:
– Wide range of sizes and materials available
– High-quality compounds for various applications
– Suitable for both static and dynamic sealing
– Used in multiple industries including oil & gas, marine, hydraulic, and pneumati…

Cons:
– Specific details on French R-series O-Rings are not provided without direct acce…
– May require additional inquiry for specific size and material details

Ring Size Conversion Chart – International – Après Jewelry

Product Details: The ring size conversion chart provides a comprehensive guide to convert ring sizes between different international standards, including US, UK, Germany, France, Japan, and others. It includes inner diameters in millimeters and corresponding ring sizes for each country. Users can measure their ring size at home using a strip of paper or thread and then refer to the chart to find their size. The chart is useful for both men and women and covers a wide range of sizes.

Pros:
– Allows for easy conversion between different international ring size standards.
– Includes inner diameters in millimeters for precise measurements.
– Can be used at home with simple tools like paper or thread.
– Covers a wide range of sizes for both men and women.
– Helpful for shopping from international jewelry stores.

Cons:
– May require multiple measurements to ensure accuracy.
– Some ring styles or materials cannot be resized if the wrong size is chosen.
– Users need to consider factors like finger shape and ambient temperature for a c…

O-Ring Size Chart List | Standard Metric JIS BS Dimensions

Product Details: Marco Rubber & Plastics offers a wide range of o-rings in various standard sizes, including USA AS568, Japanese JIS, British BS, and common metric sizes. The company provides an extensive inventory network with millions of o-rings in stock, as well as the option for custom o-rings without tooling fees. Their o-ring sizing charts are available for different standards, and they also offer specialty formulated o-rings for high temperature applications and harsh chemical environments. The company boasts a large inventory of over one billion seals, including 300,000 unique items, ensuring they can find or customize the seal needed for any application.

Pros:
– Extensive inventory network with millions of o-rings in stock
– Custom o-rings available without tooling fees
– Wide range of standard sizes including USA AS568, Japanese JIS, British BS, and…
– Specialty formulated o-rings for high temperature and harsh chemical application…
– Large selection of over one billion seals, including 300,000 unique items

Cons:
– No specific cons mentioned on the website

O-ring size (no tooling charge)

Product Details: PPE offers a wide range of O-rings in various standards including AS568, DIN11864, and RJT. These O-rings are available in different materials such as FFKM, FKM, EPDM, and Silicone, with certifications including FDA, USP, and 3-A 18-03. They are manufactured for critical sealing applications in industries like oil & gas, semiconductor, and food processing. Large diameter O-rings up to 2.5 meters outer diameter and cross sections from 5mm to 20mm are also available.

Pros:
– High performance elastomer materials with excellent chemical resistance and high…
– Fully molded O-rings offer tighter cross-section tolerances and no joint weaknes…
– Available in metal detectable elastomers for enhanced consumer safety in food an…
– Manufactured in cleanroom environments to minimize atmospheric contamination.
– Short manufacturing lead-times for time-critical requirements.

Cons:
– Higher cost compared to jointed or spliced O-rings due to the advanced manufactu…
– Limited availability of certain sizes and materials without custom tooling.
– May require specific tooling for non-standard sizes, which can add to the overal…

Parker AS568 O-Rings Size Chart

Product Details: Parker O-Rings are available in various series, including the 2-XXX and 5-XXX series. These o-rings come in standard and non-standard dimensions. The 2-XXX series follows AS568B dimensions, while the 5-XXX series includes non-standard sizes not covered by AS568. Key details include inside diameter (I.D.), cross-section (C.S.), and tolerances in both inches and millimeters. The o-rings are made from various rubber compounds and are designed for different applications, including pneumatic and hydraulic systems[1][3][4].

Pros:
– Wide range of sizes available to fit various applications
– Manufactured to precise tolerances for reliable sealing
– Made from different rubber compounds to suit different operating conditions
– Comprehensive sizing charts for easy identification and selection

Cons:
– Non-standard sizes may have limited availability and higher costs
– Materials with non-standard shrinkage may deviate from listed dimensions
– Requires careful selection of the correct size and material for the specific app…

International Ring Size Conversion Chart: US, Australia, …

Product Details: The page likely provides methods and tools for measuring ring sizes. This includes using a ring sizer, a printable DIY ring size measuring kit, and the string method. The ring sizer is an adjustable tool that allows for accurate measurement to within a quarter of a size. The printable DIY kit involves cutting out a ring sizer from paper and using it to measure the finger. The string method involves wrapping a string around the finger and measuring its length to determine the ring size.

Pros:
– Accurate measurement with adjustable ring sizers
– Convenient and cost-effective with printable DIY kits
– Easy to use string method for quick measurements

Cons:
– Printable DIY kits require careful cutting and may not be as accurate as adjusta…
– String method can be less precise if not done correctly
– Ring sizes can vary slightly due to factors like time of day and weather

Custom O-Rings, Custom Molded O-Ring China Manufacturer

Product Details: Savvy Rubber offers custom o-rings designed and produced in various cross-sections and shapes. These o-rings are defined as custom if their cross-section or outline shape deviates from standard o-ring sizes. For standard cross-sections but non-round shapes (e.g., square, rectangular), a drawing is required for production. Key details include the need for inner diameter (ID) and cross-section (CS) for round custom o-rings, and a drawing for non-round shapes. Materials include NBR, FKM, Silicone, and others, with hardness ranging from Shore A 40 to 90. Custom o-rings are used in industries such as hydraulics, oil and gas, semiconductor processing, aerospace, food processing,

and more.

Pros:
– Strong cost control management resulting in low prices while maintaining high qu…
– Ability to produce a wide variety of sizes and shapes, including non-standard an…
– Materials available include NBR, FKM, Silicone, and others, catering to differen…
– Customization options for color, material, and design to meet specific industry…
– Experience in the OEM o-ring industry for many years, ensuring reliable producti…

Cons:
– Higher price compared to standard o-rings due to the unconventional nature and l…
– Requires close communication and cooperation for custom designs, especially for…
– Unique colors may increase cost and require a larger minimum order quantity (MOQ…

Rubber o-ring sizes

Product Details: Rubber O-rings are available in a wide range of sizes. The internal diameter (ID) can range from 0.5 mm to 2000.00 mm, and the cross-section (CS) diameter can range from 0.3 mm to 15.00 mm. These O-rings adhere to the American standard AS568 series. The website provides detailed size charts and specifications for various types of O-rings, including those made from different materials such as Nitrile (NBR), EPDM, VITON, and PTFE (Teflon)[3].

Pros:
– Wide range of sizes available to fit various applications
– Compliance with American standard AS568 series ensuring consistency and reliabil…
– Variety of materials to choose from, including Nitrile, EPDM, VITON, and PTFE

Cons:
– No specific information on the website regarding the durability or lifespan of t…
– No detailed pricing information available on the webpage

O-Ring Size Chart for U.S. & Metric Standard Sizes

Product Details: The website provides o-ring size charts for various standards, including U.S., Japanese JIS, British BS, and Common Metric sizes. It offers charts for o-rings, quad-rings, x-rings, and square-rings. Users can view these charts online or download them as PDFs. The site also allows for ordering standard and custom o-rings, with the option to request quotes online for non-standard products. Custom and non-standard products are available in most materials, typically without tooling or setup fees.

Pros:
– Comprehensive size charts for multiple international standards
– Option to view charts online or download as PDFs
– Ability to order standard and custom o-rings
– Custom and non-standard products available without tooling fees

Cons:
– No specific details on material options or pricing provided on the index page
– Users need to navigate to separate pages for detailed information on each type o…

Comparison Table

Frequently Asked Questions (FAQs)

What are the common materials used by o-ring factories in China?

O-ring factories in China use a variety of materials to manufacture o-rings, including Nitrile (NBR), Hydrogenated Nitrile (HNBR), Ethylene Propylene Diene Monomer (EPDM), Fluorocarbon (Viton), and Silicone. Each material has its own unique properties and is suited for different applications, such as chemical resistance, temperature tolerance, and oil resistance.

How do I choose the right o-ring size for my needs?

To choose the right o-ring size, you need to know the inside diameter (ID), outside diameter (OD), and the cross-section (CS) or width of the o-ring. The formula to calculate the OD is: OD = ID + CS * 2. You can refer to standard o-ring size charts like AS568, ISO 3601, or GB/T 3452.1, depending on the region and application.

Can Chinese o-ring factories produce custom o-rings?

Yes, many Chinese o-ring factories offer custom o-ring manufacturing services. If the standard sizes do not meet your requirements, you can request custom o-rings with specific cross-sections and shapes. You will need to provide the inner diameter and cross-section for standard custom o-rings, or a detailed drawing for non-round shapes.

What is the typical minimum order quantity (MOQ) for o-rings from Chinese factories?

The minimum order quantity (MOQ) for o-rings from Chinese factories can vary, but it is often around 1,000 pieces. However, some manufacturers, like Dongguan Hongju Silicone Rubber Products Co., Ltd., accommodate orders with lower MOQs to cater to different customer needs.

How do Chinese o-ring factories ensure the quality of their products?

Chinese o-ring factories ensure quality through various measures, including the use of high-quality raw materials, advanced manufacturing equipment, and rigorous testing procedures. Many of these factories are certified with international standards like ISO 9001, which guarantees compliance with quality management systems. Additionally, some factories offer free samples for testing and guarantee unconditional replacement of non-qualifying products.