The O-ring cherry seals are available in a wide variety of materials with various properties such as heat resistance, pressure resistance, and chemical resistance, and can be molded in various sizes.
The properties and characteristics of O-rings, such as heat resistance, chemical resistance, and compression set, are generally determined by the performance of the material. Sakura Seal Co., Ltd. responds to the diverse and segmented performance requirements across a wide range of industries with a rich lineup of materials. In addition to general-purpose materials based on JIS standards, we offer various fluororubber materials with distinctive properties, including the "Fluoro Power Series," featuring high-performance materials topped by Perfluoroelastomer (FFKM), and the "Fluoro Up Series," characterized by low adhesion, low friction, low sticking, and low outgassing, to support appropriate material selection.
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basic information
The selection of materials suitable for the operating environment of O-rings is made considering temperature conditions, pressure conditions, and the conditions of the contact fluid. A higher price does not necessarily mean that all performance aspects are superior, so please understand the advantages and disadvantages of each material and choose the optimal O-ring.
Price information
It varies greatly depending on the material, dimensions, and quantity.
Delivery Time
※In-stock items are available for immediate delivery.
Applications/Examples of results
Packing, gasket, molded products
Line up（34）
| Model number | overview |
|---|---|
| NBR-70-1 (1A) | The most versatile material made of nitrile rubber, with oil resistance and abrasion resistance. Type A (former JIS standard = JIS B2401:2005). Hardness A70±5. Black color. Temperature -30 to 100℃. |
| NBR-90 (1B) | A material made of nitrile rubber, with oil resistance, abrasion resistance, and excellent pressure resistance. Type B (former JIS standard = JIS B2401:2005). Hardness A90±5. Black color. Temperature -20 to 100℃. |
| NBR-70-2 (2A) | A material made of nitrile rubber, with excellent oil resistance, suitable for use with fuel oil. Type A (former JIS standard = JIS B2401:2005). Hardness A70±5. Black color. Temperature -20 to 100℃. |
| FKM-70 (4D) | A material made of fluororubber (type 2), with excellent heat resistance, chemical resistance, and oil resistance. Type D (former JIS standard = JIS B2401:2005). Hardness A70±5. Black color. Temperature -20 to 230℃. |
| FKM-90 | A material made of fluororubber (type 2), with excellent heat resistance, chemical resistance, oil resistance, and pressure resistance. Hardness A90±5. Black color. Temperature -10 to 230℃. |
| VMQ-70 (4C) | A material made of silicone rubber, with excellent heat resistance, cold resistance, and weather resistance. Type C (former JIS standard = JIS B2401:2005). Hardness A70±5. Red color. Temperature -50 to 200℃. |
| VMQ-50 | A material made of silicone rubber, with excellent heat resistance, cold resistance, and weather resistance. Hardness A50±5. Translucent color. Temperature -50 to 200℃. |
| EPDM-70 | A material made of ethylene propylene rubber, with excellent water resistance, chemical resistance, and cold resistance. Hardness A70±5. Black color. Temperature -40 to 130℃. |
| CR-70 | A material made of chloroprene rubber, with oil resistance and weather resistance. Hardness A70±5. Black color. Temperature -30 to 100℃. |
| U-70 | A material made of urethane rubber, with oil resistance and extremely excellent pressure resistance. Hardness A70±5. Red color. Temperature 0 to 100℃. |
| HNBR-70 | A material made of hydrogenated nitrile rubber, with heat resistance, weather resistance, and excellent oil and pressure resistance. Hardness A70±5. Black color. Temperature -30 to 150℃. |
| PTFE | A material made of fluororesin, with excellent heat resistance, chemical resistance, and surface lubricity, but its performance as a packing is inferior to rubber. Teflon. White color. |
| Fluoro Power FF | A standard material made of perfluoroelastomer, with extremely excellent chemical resistance and good heat resistance. Hardness A80±5. Black color. Temperature 0 to 230℃. |
| Fluoro Power FFW | A white material made of perfluoroelastomer, with extremely excellent chemical resistance and good heat resistance. Hardness A75±5. White color. 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 color. Temperature 0 to 330℃. |
| Fluoro Power FFN | A heat-resistant non-filler material made of perfluoroelastomer, with extremely excellent heat resistance and chemical resistance. Non-carbon, non-metal. Hardness A70±5. Gray color. Temperature 0 to 300℃. |
| Fluoro Power FFHW | A heat-resistant white material made of perfluoroelastomer, with excellent heat resistance and chemical resistance. Hardness A75±5. White color. Temperature 0 to 280℃. |
| Fluoro Power FFH90 | A heat-resistant pressure-resistant material made of perfluoroelastomer, combining excellent heat resistance and chemical resistance, with excellent pressure resistance. Hardness A90±5. Black color. Temperature 0 to 280℃. |
| Fluoro Power 3F | A standard material made of type 3 fluororubber, with excellent heat resistance and chemical resistance, suitable for use with steam and strong acids. Hardness A70±5. Black color. Temperature -10 to 200℃. |
| Fluoro Power 3FW | A white material made of type 3 fluororubber, with excellent heat resistance and chemical resistance, suitable for use with steam and strong acids. Hardness A70±5. White color. Temperature -10 to 200℃. |
| Fluoro Power 3FH | A heat-resistant material made of type 3 fluororubber, with excellent heat resistance and chemical resistance, suitable for use with steam and strong acids. Hardness A75±5. Black color. Temperature 0 to 250℃. |
| Fluoro Power 3F90 | A pressure-resistant material made of type 3 fluororubber, with excellent heat resistance, pressure resistance, and chemical resistance, suitable for use with steam and strong acids. Hardness A90±5. Black color. Temperature 0 to 200℃. |
| Fluoro Power DL | A cold-resistant material made of type 3 fluororubber, with excellent heat resistance, cold resistance, and chemical resistance, suitable for use with steam and strong acids. Hardness A70±5. Black color. Temperature -35 to 200℃. |
| Fluoro Power DD | A conductive material made of type 3 fluororubber, with excellent heat resistance, cold resistance, and chemical resistance, suitable for use with steam and strong acids. Anti-static effect. Hardness A80±5. Black color. Temperature -35 to 200℃. |
| Fluoro Power DEB | A standard material made of Viton ETP, with excellent chemical resistance, suitable for use with strong alkalis, strong acids, and polar solvents. Hardness A75±5. Black color. Temperature 0 to 200℃. |
| Fluoro Power DEW | A white material made of Viton ETP, with excellent chemical resistance, suitable for use with strong alkalis, strong acids, and polar solvents. Hardness A70±5. White color. Temperature 0 to 180℃. |
| Fluoro Power AF | A standard material made of Aflas, with excellent chemical resistance, particularly excellent amine resistance, and suitable for use with strong alkalis and strong acids. Radiation resistance. Hardness A70±5. Black color. Temperature 0 to 200℃. |
| Fluoro Power AF90 | A pressure-resistant material made of Aflas, with excellent chemical resistance, particularly excellent amine resistance, and suitable for use with strong alkalis and strong acids. Radiation resistance. Hardness A90±5. Black color. Temperature 0 to 200℃. |
| Fluoro Power FQ | A material made of fluorosilicone, with extremely excellent cold resistance, and excellent oil resistance, suitable for use with fuel oil. Hardness A70±5. Blue color. Temperature -70 to 200℃. |
| Fluoro Power DPR | A special material combining fluororesin and fluororubber, with non-filler and excellent plasma resistance, while keeping the price low. Hardness A65±5. Black color. Temperature 0 to 200℃. |
| Fluoro Up D | A special material made of fluororubber, with heat resistance, chemical resistance, low adhesion, low outgassing, and excellent high vacuum resistance. Hardness A70±5. Black color. Temperature -20 to 230℃. |
| Fluoro Up K | A special material made of fluororubber, with heat resistance, chemical resistance, low adhesion, and low friction. Hardness A70±5. Black color. Temperature 0 to 230℃. |
| Fluoro Up S | A special material made of fluororubber, with heat resistance, chemical resistance, low adhesion, low friction, low sticking, and low outgassing. Hardness A70±5. Black color. Temperature 0 to 230℃. |
| Fluoro Up V | A special material made of fluororubber, with heat resistance, chemical resistance, low adhesion, low friction, and low sticking, while also excelling in low outgassing and high vacuum resistance. Hardness A75±5. Black color. Temperature -20 to 250℃. |
catalog（1）
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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.