Are you looking for the best o-ring manufacturers in China? With so many options available, it can be overwhelming to choose the right one. In this article, we’ll compare the top o-ring factories in China, highlighting their strengths, product ranges, and what sets them apart. Let’s dive in and find the perfect fit for your needs.

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 74.8 mm (size Z+5 in the USA). This chart is useful for converting ring sizes across different countries and systems, ensuring a proper fit for jewelry purchases.

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

Cons:
– Does not provide instructions on how to measure ring size at home.
– Does not address factors like finger shape, ambient temperature, and band width…

International Ring Size Conversion Chart: US, Australia, …

International Ring Size Conversion

Product Details: The ring size conversion chart on Larson Jewelers’ website is a tool designed to help customers convert their ring sizes between different international sizing systems. The chart includes measurements for US, British, European, German, Brazilian, Japanese, and Swiss ring sizes. It provides the inside diameter and circumference of the ring in both inches and millimeters, allowing users to accurately determine their equivalent ring size in various countries. The website also offers a complimentary plastic ring sizer that can be requested through a form on their site.

Pros:
– Comprehensive conversion chart covering multiple international ring size systems…
– Provides detailed measurements in both inches and millimeters.
– Option to request a free plastic ring sizer for accurate measurement at home.

Cons:
– No guarantees are provided for the accuracy of the conversion chart, and users a…
– Variations in fit due to factors like time of day and personal comfort may not b…

International Ring Size Conversation

Product Details: The website provides an international ring size chart to help customers determine their ring size according to their country’s standard. All jewelry on the site is shown in US sizes. The chart allows users to convert their local ring size to the corresponding US ring size. Customers can also contact a jewelry expert for further assistance.

Pros:
– Comprehensive international ring size chart for easy size conversion
– Expert assistance available for sizing queries
– Helpful for customers ordering from outside the US or Canada

Cons:
– No ring sizing kits or printable ring sizers provided directly on the site
– Customers must contact the site for additional sizing help, which may not be imm…

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, 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, but it is recommended to get 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.
– Helpful for customers purchasing rings online from different countries.
– Provides guidance on comfort fit sizing, which can differ from standard fit.

Cons:
– The chart is provided without guarantees, and the fit may vary due to subjective…
– Does not account for all variances, such as quarter sizes and different ring wid…
– Recommendation to get measured at a local jeweler for the most accurate fit, whi…
– Different jewelers may use different tools and charts, leading to potential disc…

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 ring size chart, a piece of string or paper, or by using a ring that already fits comfortably. Measurements are typically in inches and millimeters.

Pros:
– Accurate ring size determination using various methods such as string, paper, or…
– Option to resize opal rings at a small cost if the initial size is incorrect.
– Wide range of genuine Australian opal rings available.
– Easy, fast, and direct worldwide shipping.

Cons:
– Resizing may incur an additional cost.
– Measuring ring size at home can be less precise without proper tools.
– Opal rings may require specific care due to the delicate nature of opals.

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 from various regions such as the USA, UK, Germany, France, and others. The chart helps in converting ring sizes accurately to ensure a proper fit.

Pros:
– Accurate measurements in millimeters and inches
– Comprehensive conversion chart for different countries
– Helps in ensuring a proper fit by considering various sizing systems

Cons:
– Small variations in measurement can significantly affect the fit
– Resizing rings can be costly and may affect the durability of the ring

ring-size-conversion-chart.pdf

Product Details: The ring size conversion chart provides a guide to determine ring sizes across different countries, including USA/Canada, United Kingdom, France, Germany, Japan, and Switzerland. It lists ring diameters in millimeters and their corresponding sizes in each country. The chart is essential for ensuring a proper fit, as finger sizes can vary due to time of day, weather, and other factors.

Pros:
– Helps in accurate ring size determination across different countries.
– Provides a comprehensive chart for easy reference.
– Allows for conversion between various international ring size systems.
– Offers tips on how to measure ring size accurately at home or through profession…

Cons:
– Finger sizes can fluctuate, making it challenging to get an exact fit without pr…
– Measuring ring size at home using paper or string can be less accurate compared…
– Resizing rings, especially those with diamonds or gemstones, can be risky and ma…

RING SIZE GUIDE – monSecret_official

Product Details: The size guide on monSecret.store is specifically for ring sizes. It provides a conversion table between different international sizing systems, including UK, US, EU, and China. The guide includes measurements for ring diameter and finger circumference to help users find their correct ring size. Users can measure their finger circumference by wrapping a narrow strip of paper or string around the intended finger, marking the end, and matching the measurement to the circumference column in the table.

Pros:
– Provides a comprehensive conversion table for various international ring size sy…
– Includes detailed instructions on how to measure finger circumference accurately…
– Helps users choose the correct ring size based on their measurements.

Cons:
– The size guide is limited to ring sizes and does not cover other types of produc…
– Users need to ensure accurate measurements to avoid ordering the wrong size.

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 sizing. 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 non-standard products, with custom orders available within a few weeks, typically without tooling fees.

Pros:
– Comprehensive size charts for different international standards
– Option to view charts online or download as PDFs
– Availability of standard and non-standard o-ring sizes
– Custom orders can be made within a few weeks without tooling fees

Cons:
– No specific details on material options or pricing provided on the index page
– Users may need to navigate multiple pages to find specific size charts or order…

Comparison Table

Frequently Asked Questions (FAQs)

Here are five frequently asked questions about o-ring sizes from factories in China, along with clear and concise answers

What are the standard sizes for o-rings available in Chinese factories?

Chinese factories offer a wide range of standard o-ring sizes, including those that comply with international standards such as AS568, BS1516, DIN 3771, JIS B 2401, ISO 3601, and GB 3452.1. These sizes are typically specified by their inside diameter (ID), outside diameter (OD), and cross-section (CS) or thickness. For example, a standard size might be ID 20 x CS 2 mm.

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

Yes, you can get custom o-ring sizes from Chinese manufacturers. Many factories have the capability to produce non-standard sizes based on your specific requirements. They can create custom molds to meet your needs, although this may involve a slightly longer production time and potentially higher costs compared to standard sizes.

How do I calculate the outside diameter of an o-ring?

To calculate the outside diameter (OD) of an o-ring, you can use the formula: OD = ID + CS * 2, where ID is the inside diameter and CS is the cross-section or thickness of the o-ring. For instance, if the ID is 20 mm and the CS is 2 mm, the OD would be 20 mm + 2 mm * 2 = 24 mm.

What is the tolerance for o-ring sizes, and how does it affect the fit?

The tolerance for o-ring sizes varies depending on the cross-section thickness. Generally, the tolerance ranges from ±0.07 mm for smaller thicknesses to ±0.25 mm for larger thicknesses. This tolerance is crucial because it affects the fit and sealing performance of the o-ring. Ensuring the correct tolerance is important to avoid issues like leakage or improper sealing.

How quickly can I receive custom or standard o-rings from Chinese factories?

The delivery time for o-rings from Chinese factories can vary. For standard sizes, delivery can often be arranged within 7-15 days. For custom sizes, the delivery time may be longer due to the need to create a new mold, but many factories aim to deliver custom orders within a few weeks. Some manufacturers also offer expedited shipping options to speed up the delivery process.