Are you looking for the best O-rings from US-standard factories in China? With numerous manufacturers offering a wide range of sizes and materials, choosing the right one can be overwhelming. In this article, we’ll compare the top O-ring suppliers in China that meet US standards, helping you make an informed decision for your needs. Let’s dive in and find the perfect fit for your project.

Ring Size Conversion Chart – International – Après Jewelry

Product Details: The ring size conversion chart provided by Apres Jewelry includes various international ring size systems. It lists the inner diameter in millimeters and inches, and corresponds these measurements to ring sizes in the USA/Canada/Mexico, UK/Ireland/Australia/New Zealand/South Africa, and Germany/France. The chart covers a wide range of sizes, from 15 mm (size 4 in the USA) to 24 mm (size Z+5 in the UK). The chart is designed to help users convert ring sizes accurately across different regions and is available for free on the website. Free shipping is offered on all orders over $500.

Pros:
– Comprehensive chart covering multiple international ring size systems.
– Includes measurements in both millimeters and inches for accuracy.
– Helpful for converting ring sizes across different countries.
– Free shipping on all orders over $500.

Cons:
– Users need to ensure they are using the correct regional sizing system to avoid…
– No option for custom or half sizes not listed in the chart.
– No additional tools or ring sizers provided with the chart.

International Ring Size Conversion Chart: US, Australia, …

Product Details: The ring sizer is a tool designed to help measure and determine the correct ring size. It is available in various forms, including adjustable ring sizers and printable DIY ring size charts. The adjustable ring sizer typically includes multiple plastic rings in different sizes, allowing users to find the best fit by trying them on. The printable DIY chart involves cutting out a ring sizer from paper and using it to measure the finger circumference.

Pros:
– Provides accurate measurement to within a quarter of a size
– Convenient and can be used at home without visiting a jewelry store
– Available in different types, such as multi-ring sizers and printable charts
– Helpful for both men and women to determine their ring size

Cons:
– Printable DIY charts require careful cutting and may not be as accurate as adjus…
– May not account for variations in finger size due to time of day or weather
– Some users might find the process of measuring with a string or tape measure les…

International Ring Size Conversion Chart for Comfort Fit

Product Details: The International Ring Size Conversion Chart provided by Hanover Jewelers is a tool designed to help customers convert their local ring size to the corresponding US ring size. The chart includes ring size systems from various countries such as the US, Canada, Mexico, UK, Australia, New Zealand, South Africa, Ireland, France, Russia, Denmark, Sweden, Norway, Finland, Germany, Argentina, Brazil, Japan, China, Korea, Hong Kong, Taiwan, Singapore, and Switzerland. It provides conversions for comfort fit rings and includes measurements in both millimeters and inches. The chart is intended to give a general idea of ring size and recommends getting measured at

a local jeweler for the most accurate fit.

Pros:
– Comprehensive conversion chart covering multiple international ring size systems…
– Includes measurements in both millimeters and inches for accuracy.
– Provides guidance for comfort fit rings, which can differ from standard fit.
– Advises on the importance of getting measured at a local jeweler for the best fi…

Cons:
– The chart is provided without guarantees and may not account for all variances i…
– Subjective opinions of fit and time of day can affect ring size, which the chart…
– Only half sizes are considered, not quarter sizes, which might limit accuracy fo…
– Different jewelers may use different tools and charts, leading to potential disc…

International Ring Size Conversion

Product Details: The ring sizing tools and guides provided by Larson Jewelers and other jewelers help users determine their US ring size. These tools include printable ring sizers, measurement charts, and instructions on how to measure ring size using existing rings or by wrapping a strip of paper around the finger. The charts provide measurements in both millimeters and inches for diameter and circumference, ensuring accurate sizing. Additionally, there are guidelines for converting between standard fit and comfort fit sizes, and considerations for ring width and its impact on sizing.

Pros:
– Provides accurate and standardized measurements for US ring sizes.
– Offers multiple methods for measuring ring size, including using existing rings…
– Includes guidelines for converting between standard fit and comfort fit sizes.
– Considers the impact of ring width on sizing.

Cons:
– Minor variations in measurements can occur due to different rounding methods or…
– Ring size can vary between dominant and non-dominant hands and at different time…
– Different jewelers may measure the same finger at slightly different sizes.

International Ring Size Conversation

International Ring Size Conversion Chart

Product Details: The international ring size conversion chart is a tool designed to help users convert ring sizes between different countries and regions. It includes ring sizes for the United States, Canada, United Kingdom, Australia, New Zealand, South Africa, France, Germany, Japan, Switzerland, and other countries. The chart provides ring diameters in millimeters and corresponding ring sizes for each region.

Pros:
– Helps users accurately convert ring sizes between different countries and region…
– Includes detailed measurements in millimeters for precise conversions.
– Covers a wide range of countries and their respective ring size systems.

Cons:
– May not account for variations in ring fit styles (e.g., comfort fit vs standard…
– Does not provide real-time or personalized sizing recommendations.

International Ring Size Conversion Chart Table

Product Details: The ring size conversion chart provides a comprehensive guide to determine ring sizes across different countries. It includes measurements in millimeters and inches, and correlates sizes for the USA, Canada, Mexico, UK, Ireland, Australia, New Zealand, South Africa, Germany, France, Spain, Italy, Japan, China, India, and South America. The chart details the inside diameter and circumference of the ring to help in accurate sizing.

Pros:
– Helps in accurate ring sizing across various international standards.
– Provides measurements in both millimeters and inches.
– Includes detailed correlations for different countries.
– Assists in choosing the correct size to ensure a comfortable fit.

Cons:
– Requires precise measurements, as small variations can affect the fit.
– Does not account for individual variations in finger shape and size beyond the s…
– Users must ensure the measuring method is accurate to avoid sizing issues.

The original ring size conversion site

Product Details: The website https://www.ringsizes.biz/ provides guidance on measuring ring size. It advises using gauge rings to determine the correct size. The process involves trying sizes from the large end until finding a size that won’t go on, then reversing the process to find the largest size that fits comfortably. The site also notes that people with larger knuckles can wear slightly looser rings, while those with narrower knuckles need tighter rings. The ring size should be measured when the hands are at a normal temperature, as sizes can vary with temperature changes.

Pros:
– Accurate measurement method using gauge rings
– Consideration for different knuckle sizes and finger shapes
– Guidance on optimal measurement conditions (normal hand temperature)

Cons:
– No direct product or tool sales mentioned on the page
– No automated or convenient measurement tools offered

Ring Size Chart

Product Details: The clothing size chart provided by L’Dezen includes various measurements for different sizes. The sizes range from XXS to XL, corresponding to US sizes 0-10. Here are the key measurements for each size: XXS (US 0) – 30″ bust, 22.75″ waist, 33″ hips; XS (US 2) – 31″ bust, 23.75″ waist, 33.75″ hips; S (US 4) – 32″ bust, 24.75″ waist, 34.75″ hips; M (US 6) – 34″ bust, 26.75″ waist, 36.75″ hips; L (US 8) – 36″ bust, 28.75″ waist, 38.75″ hips; XL (US 10) – 38″ bust, 30.75″ waist, 40.75″ hips. The chart also includes European and numeric

size equivalents.

Pros:
– Detailed size chart with multiple measurements for accurate fitting
– 7-day return policy for easy exchanges or refunds
– High-quality and meticulously crafted products

Cons:
– Limited size range, with no sizes larger than XL
– No specific care instructions provided on the size chart page

Ring size conversion chart – Opal Direct

Product Details: Opal rings are available in various sizes, with standard ring sizes for ladies ranging from size 6 to size 10, and for men from size 8 to size 13. The most common sizes are 6-7 for ladies and size 9 for men. Ring sizes can be determined using a string or paper method, or by using a ring that already fits comfortably. Opal rings can be resized at a small cost if needed.

Pros:
– Wide range of sizes available to fit different finger sizes.
– Option to resize the ring at a small cost if the initial size is incorrect.
– Multiple methods to determine ring size accurately, including using a string or…
– Opal rings are available in various designs and styles to suit individual prefer…

Cons:
– Resizing may incur an additional cost.
– Determining the correct size without trying the ring on can be challenging.
– Opal rings may require specific care and handling due to the delicate nature of…

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About O-Ring Sizes from Chinese Manufacturers

How do I specify the size of an O-ring?

When specifying the size of an O-ring, you typically need to provide the inside diameter (ID) and the cross-section (CS) or width. For example, a standard O-ring size might be given as ID 20 x CS 2 mm. The outside diameter (OD) can be calculated using the formula: OD = ID + CS * 2.

What are the standard O-ring size specifications used in China and internationally?

O-ring sizes can vary by country, but there are several international standards. In China, the standard is GB 3452.1, while in the USA, it’s AS568. Other countries use standards like BS1516 for the UK, DIN 3771 for Germany, JIS B 2401 for Japan, and ISO 3601 for international use. Ensuring you use the correct standard is crucial for compatibility.

Can I get custom O-ring sizes from Chinese manufacturers?

Yes, you can get custom O-ring sizes from Chinese manufacturers. Many companies, such as Savvy and SWKS, offer custom O-ring manufacturing based on your specific drawings or samples. They have a wide range of molds and can produce O-rings in various sizes and shapes to meet your needs.

What is the minimum order quantity (MOQ) for O-rings from Chinese suppliers?

The minimum order quantity (MOQ) for O-rings can vary depending on the supplier. Some companies have a low MOQ, such as 10 or 100 pieces, while others may require larger orders, typically in the thousands. It’s best to check with the specific supplier to determine their MOQ.

How do I ensure the O-ring material is suitable for my application?

To ensure the O-ring material is suitable for your application, you need to consider the compatibility of the elastomer with the chemicals and conditions it will be exposed to. Different materials like NBR, EPDM, HNBR, and FKM have different properties and resistances. Refer to the material properties table provided by the manufacturer to choose the most cost-effective and suitable O-ring for your needs.