About O-Ring Master
GMORS O-Ring Master is the completed tool for standard rubber seal sizes. When you use this APP, you don't need to have internet and catalog. Except O-Ring sizes, it also includes the search functions of X-Ring and...
GMORS O-Ring Master is the completed tool for standard rubber seal sizes. When you use this APP, you don't need to have internet and catalog. Except O-Ring sizes, it also includes the search functions of X-Ring and Back-Up Ring. Otherwise, you can also use O-Ring Housing to choose suitable O-Ring in your application. Main functions are as follows: Dimension Search：O-Ring, X-Ring and Back-Up Ring. - MM and Inch are both available. - Full standard O-Ring series: AS568, BS 4518, GB/T 3452.1, JIS B2401 P, JIS B2401 G, JIS B2401 S, JIS B2401 V, SMS 1586 and METRIC. - Collocated Back-Up for AS-568 O-Ring. - Substitutable O-Ring sizes within tolerance are available. O-Ring Housing： Piston Sealing、Rod Sealing and Face Sealing. - MM and Inch are both available. - Support calculation for both Static and Dynamic sealing applications (Face sealing is with static calculation only). - Up to 7 O-Ring standards ( AS568, METRIC, JIS B2401 P/G/S/V, JASO F404, GB/T 3452.1, BS 4518 and SMS 1586) for most of size requirement of different groove design.
Version History Regular maintenance and performance improvements. 4.0.0 03/18/2025 Update standard size New language versions (Chinese, Taiwanese). Optimizations and performance improvements. 3.2 01/05/2023 Optimizations and performance improvements. 3.1 12/29/2022 Optimizations and performance improvements. 3.0 08/17/2022 1. Build with the iOS 13 SDK 2. Use an Xcode storyboard to provide the app's launch screen 2.3 05/04/2020 * O-Ring housing calculation adjustment. * New languages: Japanese, Thai, Spanish, Turkish, Korean, Portuguese, Russian and Persian. 2.2 10/29/2018 * O-Ring housing calculation adjustment. * New languages: Japanese, Thai, Spanish, Turkish, Korean, Portuguese, Russian and Persian. 2.1 10/29/2018 In O-Ring Housing calculator, O-Ring size is not only limited in AS568 standard anymore. JIS B2401 P/G/S/V, JASO F404, METRIC, GB/T 3452.1, BS 4518 and SMS 1586 are now added to fit your needs. 2.0 07/26/2017 Update JASO F404 (Japanese O-Ring standard) 1.0.2 08/19/2016 change display name 1.01 01/18/2016 1.0 01/12/2016
Previous Versions
Here you can find the changelog of O-Ring Master since it was posted on our website on 2016-10-29 05:12:57.
The latest version is 4.0.0 and it was updated on 2026-07-02 11:03:02. See below the changes in each version.
O-Ring Master version 4.0.0
Updated At: 2026-06-29
Changes: Version History Regular maintenance and performance improvements. 4.0.0 03/18/2025 Update standard size
New language versions (Chinese, Taiwanese).
Optimizations and performance improvements. 3.2 01/05/2023 Optimizations and performance improvements. 3.1 12/29/2022 Optimizations and performance improvements. 3.0 08/17/2022 1. Build with the iOS 13 SDK
2. Use an Xcode storyboard to provide the app's launch screen 2.3 05/04/2020 * O-Ring housing calculation adjustment.
* New languages: Japanese, Thai, Spanish, Turkish, Korean, Portuguese, Russian and Persian. 2.2 10/29/2018 * O-Ring housing calculation adjustment.
* New languages: Japanese, Thai, Spanish, Turkish, Korean, Portuguese, Russian and Persian. 2.1 10/29/2018 In O-Ring Housing calculator, O-Ring size is not only limited in AS568 standard anymore.
JIS B2401 P/G/S/V, JASO F404, METRIC, GB/T 3452.1, BS 4518 and SMS 1586 are now added to fit your needs. 2.0 07/26/2017 Update JASO F404 (Japanese O-Ring standard) 1.0.2 08/19/2016 change display name 1.01 01/18/2016 1.0 01/12/2016
O-Ring Master version 4.0.0
Updated At: 2025-03-18
Changes: Regular maintenance and performance improvements.
O-Ring Master version 4.0.0
Updated At: 2025-03-18
Changes: Mar 18, 2025
Version 4.0.0
Regular maintenance and performance improvements.
O-Ring Master version 3.2
Updated At: 2023-01-05
Changes: Jan 5, 2023
Version 3.2
Update standard size
New language versions (Chinese, Taiwanese).
Optimizations and performance improvements.
O-Ring Master version 1.0.2
Updated At: 2016-01-12
Disclaimer
Official App Store Link
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