The O-ring cherry seal molds O-rings of various sizes according to ISO standards (International Organization for Standardization) using a wide variety of materials.
The ISO standards established by the International Organization for Standardization are primarily utilized outside of Japan. Sakura Seal Co., Ltd. produces various high-performance materials, including the most in-demand NBR-70-1 (1A) and, as needed, the Perfluoroelastomer (FFKM) at the top of the range, known as the "Fluoro Power Series," as well as the "Fluoro Up Series," characterized by low adhesion, low friction, low sticking, and low outgassing. We support the appropriate selection of O-rings in terms of both size and material.
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basic information
ISO standards are one of the O-ring dimension standards established by the International Organization for Standardization. Most of the demand for materials is concentrated on NBR-70-1 (1A), but as an internationally recognized O-ring size standard, it is also utilized in specific fields within Japan.
Price information
Prices may vary depending on the material and quantity, so please feel free to contact us.
Delivery Time
P1
※In principle, stock items are available for immediate delivery, but the delivery time may vary depending on the material and quantity.
Applications/Examples of results
O-ring (for movement and fixation). Packing, gasket.
Line up（26）
| Model number | overview |
|---|---|
| NBR-70-1 (1A) | The most versatile material made of nitrile rubber, featuring oil resistance and abrasion resistance. Type A (former JIS standard = JIS B2401:2005). Hardness A70±5. Black. Temperature -30 to 100℃. |
| FKM-70 (4D) | A material made of fluororubber (2-component), excelling in heat resistance, chemical resistance, and oil resistance. Type D (former JIS standard = JIS B2401:2005). Hardness A70±5. Black. Temperature -20 to 230℃. |
| FKM-90 | A material made of fluororubber (2-component), excelling in heat resistance, chemical resistance, oil resistance, and pressure resistance. Hardness A90±5. Black. Temperature -10 to 230℃. |
| PTFE | A material made of fluororesin, excelling in heat resistance, chemical resistance, and surface lubricity, but its performance as a gasket is inferior to rubber. Teflon. White. |
| Fluoro Power FF | A standard material made of perfluoroelastomer, possessing extremely excellent chemical resistance and also excellent heat resistance. Hardness A80±5. Black. Temperature 0 to 230℃. |
| Fluoro Power FFW | A white material made of perfluoroelastomer, possessing extremely excellent chemical resistance and also excellent heat resistance. Hardness A75±5. White. Temperature 0 to 230℃. |
| Fluoro Power FFS | A heat-resistant material made of perfluoroelastomer, combining extremely excellent heat resistance and chemical resistance. Hardness A75±5. Black. Temperature 0 to 330℃. |
| Fluoro Power FFN | A heat-resistant non-filler material made of perfluoroelastomer, possessing extremely excellent heat resistance and chemical resistance. Non-carbon, non-metal. Hardness A70±5. Gray. Temperature 0 to 300℃. |
| Fluoro Power FFHW | A heat-resistant white material made of perfluoroelastomer, possessing excellent heat resistance and chemical resistance. Hardness A75±5. White. Temperature 0 to 280℃. |
| Fluoro Power FFH90 | A heat-resistant pressure-resistant material made of perfluoroelastomer, combining excellent heat resistance and chemical resistance, and also excelling in pressure resistance. Hardness A90±5. Black. Temperature 0 to 280℃. |
| Fluoro Power 3F | A standard material made of 3-component fluororubber, excelling in heat resistance and chemical resistance, and can also be used for steam and strong acids. Hardness A70±5. Black. Temperature -10 to 200℃. |
| Fluoro Power 3FW | A white material made of 3-component fluororubber, excelling in heat resistance and chemical resistance, and can also be used for steam and strong acids. Hardness A70±5. White. Temperature -10 to 200℃. |
| Fluoro Power 3FH | A heat-resistant material made of 3-component fluororubber, possessing excellent heat resistance and chemical resistance, and can also be used for steam and strong acids. Hardness A75±5. Black. Temperature 0 to 250℃. |
| Fluoro Power 3F90 | A pressure-resistant material made of 3-component fluororubber, excelling in heat resistance, pressure resistance, and chemical resistance, and can also be used for steam and strong acids. Hardness A90±5. Black. Temperature 0 to 200℃. |
| Fluoro Power DL | A cold-resistant material made of 3-component fluororubber, excelling in heat resistance, cold resistance, and chemical resistance, and can also be used for steam and strong acids. Hardness A70±5. Black. Temperature -35 to 200℃. |
| Fluoro Power DD | A conductive material made of 3-component fluororubber, excelling in heat resistance, cold resistance, and chemical resistance, and can also be used for steam and strong acids. Anti-static effect. Hardness A80±5. Black. Temperature -35 to 200℃. |
| Fluoro Power DEB | A standard material made of Viton ETP, possessing excellent chemical resistance, making it usable for strong alkalis, strong acids, and polar solvents. Hardness A75±5. Black. Temperature 0 to 200℃. |
| Fluoro Power DEW | A white material made of Viton ETP, possessing excellent chemical resistance, making it usable for strong alkalis, strong acids, and polar solvents. Hardness A70±5. White. Temperature 0 to 180℃. |
| Fluoro Power AF | A standard material made of Aflas, possessing excellent chemical resistance, particularly excelling in amine resistance, and can also be used for strong alkalis and strong acids. Radiation resistance. Hardness A70±5. Black. Temperature 0 to 200℃. |
| Fluoro Power AF90 | A pressure-resistant material made of Aflas, possessing excellent chemical resistance, particularly excelling in amine resistance, and can also be used for strong alkalis and strong acids. Radiation resistance. Hardness A90±5. Black. Temperature 0 to 200℃. |
| Fluoro Power FQ | A material made of fluorosilicone, possessing extremely excellent cold resistance, and due to its excellent oil resistance, can also be used for fuel oil. Hardness A70±5. Blue. Temperature -70 to 200℃. |
| Fluoro Power DPR | A special material combining fluororesin and fluororubber, non-filler and possessing excellent plasma resistance, while keeping the price low. Hardness A65±5. Black. Temperature 0 to 200℃. |
| Fluoro Up D | A special material made of fluororubber, excelling in heat resistance and chemical resistance, as well as low adhesion, low outgassing, and high vacuum resistance. Hardness A70±5. Black. Temperature -20 to 230℃. |
| Fluoro Up K | A special material made of fluororubber, excelling in heat resistance and chemical resistance, as well as low adhesion and low friction. Hardness A70±5. Black. Temperature 0 to 230℃. |
| Fluoro Up S | A special material made of fluororubber, excelling in heat resistance and chemical resistance, as well as low adhesion, low friction, low sticking, and low outgassing. Hardness A70±5. Black. Temperature 0 to 230℃. |
| Fluoro Up V | A special material made of fluororubber, excelling in heat resistance and chemical resistance, as well as low adhesion, low friction, and low sticking, while also excelling in low outgassing and high vacuum resistance. Hardness A75±5. Black. Temperature -20 to 250℃. |
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Company information
Sakura Seal Co., Ltd. is a seal product manufacturer that specializes in the production and sale of O-rings, oil seals, and various types of gaskets. We particularly excel in molded products made from fluororubber, and we offer a wide range of high-performance materials with special properties, including not only general-purpose FKM materials but also FFKM materials. With our deep knowledge of various seal products, we maintain a stock of over 20,000 types, even within Tokyo, and strive to remain an organization that provides high convenience for industries and society.