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Various Rubber O-rings
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O-rings are mainly used for static sealing and reciprocating motion sealing. When used for rotary motion sealing, it is limited to low-speed rotary sealing devices. The O-ring is generally installed in a groove with a rectangular cross-section on the outer circle or the inner circle to play a sealing role. O-ring seals still play a good role in sealing and shock absorption in environments such as oil resistance, acid and alkali, abrasion, and chemical erosion. Therefore, the O-ring is the most widely used seal in hydraulic and pneumatic transmission systems.
- 产品描述
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- Commodity name: Various Rubber O-rings
- Commodity ID: A-001
O-rings are mainly used for static sealing and reciprocating motion sealing. When used for rotary motion sealing, it is limited to low-speed rotary sealing devices. The O-ring is generally installed in a groove with a rectangular cross-section on the outer circle or the inner circle to play a sealing role. O-ring seals still play a good role in sealing and shock absorption in environments such as oil resistance, acid and alkali, abrasion, and chemical erosion. Therefore, the O-ring is the most widely used seal in hydraulic and pneumatic transmission systems.
Today, O-rings are the most widely used sealing elements due to their low cost and ease of use.
They are used both as sealing elements and as energizing elements in hydraulic reciprocating seals or wipers.
The wide selection of elastomeric materials for standard and special purposes enables O-rings to be used in virtually all liquid and gaseous media.
It is suitable for almost all fields of industry, and acts as a seal in a static or moving state under specified temperature, pressure, and different liquid and gas media. It is widely used in machine tools, ships, automobiles, aerospace equipment, and metallurgical machinery. , chemical machinery, engineering machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and various instruments and meters, a large number of various types of sealing components are used.
O-ring working pressure:0-300MPa; working speed: ≤15m/s; working temperature: -55-250 degrees.
O-ring suitable medium:Hydraulic oil, gas, water, mud, crude oil, emulsion, water-glycol, acid
The choice of O-ring hardness is more important:Low hardness, easy installation, but prone to peeling, installation damage, extrusion and even pressure explosion. Too high hardness, inconvenient to install
Youjia can provide a variety of O-rings that are cost-effective and excellent in performance （Including metric or imperial, standard or non-standard), O-rings of any size are provided, including giant O-rings for special industrial processing. These materials include butadiene rubber (NBR), silicone rubber (SI), hydrogenated nitrile rubber (HNBR), fluorine rubber (FKM), fluorosilicone rubber (VMQ), ethylene propylene rubber (EPDM), neoprene rubber (CR), butyl rubber (BU) Styrene Butadiene Rubber S B R Ethylene Propylene Diene Monomer (EPDM) Chlorosulfonated Polyethylene Rubber CSM Acrylic Rubber ACM
How to reasonably design O-ring groove size
The O-ring in the groove will deform under the pressure of the medium, and the edge of the O-ring will flow into the gap to achieve the sealing function of the O-ring. The greater the pressure on the O-ring, the greater the deformation of the O-ring, and the better the sealing effect of the O-ring. When the pressure on the O-ring exceeds its bearing limit, the O-ring will be squeezed into the gap, causing the O-ring seal to fail. For this reason, when designing the groove of the O-ring, the relationship between the hardness of the O-ring, the working pressure and the clearance tolerance must be reasonably matched. And when designing the O-ring groove, the gap of the O-ring groove should be as small as possible. In actual operation, it is inevitable to encounter a large gap in the groove of the O-ring. In order to prevent the O-ring from being squeezed into the gap, it should be considered to use a material with strong extrusion resistance and good dimensional stability to make the O-ring. Rings, such as polyurethane material O-rings.
Today, O-rings are the most widely used sealing elements due to their low cost and ease of use.
They are used both as sealing elements and as energizing elements in hydraulic reciprocating seals or wipers.
The wide selection of elastomeric materials for standard and special purposes enables O-rings to be used in virtually all liquid and gaseous media.
It is suitable for almost all fields of industry, and acts as a seal in a static or moving state under specified temperature, pressure, and different liquid and gas media. It is widely used in machine tools, ships, automobiles, aerospace equipment, and metallurgical machinery. , chemical machinery, engineering machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and various instruments and meters, a large number of various types of sealing components are used.
O-ring working pressure:0-300MPa; working speed: ≤15m/s; working temperature: -55-250 degrees.
O-ring suitable medium:Hydraulic oil, gas, water, mud, crude oil, emulsion, water-glycol, acid
The choice of O-ring hardness is more important:Low hardness, easy installation, but prone to peeling, installation damage, extrusion and even pressure explosion. Too high hardness, inconvenient to install
Youjia can provide a variety of O-rings that are cost-effective and excellent in performance （Including metric or imperial, standard or non-standard), O-rings of any size are provided, including giant O-rings for special industrial processing. These materials include butadiene rubber (NBR), silicone rubber (SI), hydrogenated nitrile rubber (HNBR), fluorine rubber (FKM), fluorosilicone rubber (VMQ), ethylene propylene rubber (EPDM), neoprene rubber (CR), butyl rubber (BU) Styrene Butadiene Rubber S B R Ethylene Propylene Diene Monomer (EPDM) Chlorosulfonated Polyethylene Rubber CSM Acrylic Rubber ACM
How to reasonably design O-ring groove size
The O-ring in the groove will deform under the pressure of the medium, and the edge of the O-ring will flow into the gap to achieve the sealing function of the O-ring. The greater the pressure on the O-ring, the greater the deformation of the O-ring, and the better the sealing effect of the O-ring. When the pressure on the O-ring exceeds its bearing limit, the O-ring will be squeezed into the gap, causing the O-ring seal to fail. For this reason, when designing the groove of the O-ring, the relationship between the hardness of the O-ring, the working pressure and the clearance tolerance must be reasonably matched. And when designing the O-ring groove, the gap of the O-ring groove should be as small as possible. In actual operation, it is inevitable to encounter a large gap in the groove of the O-ring. In order to prevent the O-ring from being squeezed into the gap, it should be considered to use a material with strong extrusion resistance and good dimensional stability to make the O-ring. Rings, such as polyurethane material O-rings.
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Ningbo Yuka Sealing Industry Co., Ltd.
Address: No.141, Gongmao 1st Road, Jishigang Industrial Zone, Haishu District, Ningbo City
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Youjia Sealing | Sealing Components
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