High Quality O-Ring Seal Box Kit

Short Description:

O-ring O-ring is a rubber sealing ring with a circular cross-section. Because of its O-shaped cross-section, it is called an O-shaped rubber sealing ring, also called an O-ring. It began to appear in the mid-19th century, when it was used as a sealing element for steam engine cylinders. O-rings are the most common mechanical design for seals because of their low cost, simplicity of manufacture, reliable function, and simple installation requirements.

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Standard size

What is an O-ring

The O-ring is a kind of extruded seal. The basic working principle of the extruded seal is to rely on the elastic deformation of the seal to cause contact pressure on the sealing contact surface. If the contact pressure is greater than the internal pressure of the sealed medium, it will not occur. leaks, and vice versa.O-rings are often used in pump equipment and are widely used seals in hydraulic and pneumatic systems. It has good sealing performance and can be used for both static sealing and dynamic sealing; it can not only be used alone, but also is a basic component in many combined sealing devices. It has a wide range of applications, and if the material is selected properly, it can meet the requirements of various media and various sports conditions.

O-ring advantages

1. Simple structure, small volume and compact installation location.
2. It has the function of self-sealing, no need for periodic adjustment.
3. Good sealing performance, no leakage during static sealing.
4. The frictional resistance of movement is small, which is suitable for occasions with alternating pressure.
5. The size and groove have been standardized, the price is cheap, the product is easy to obtain, and it is easy to use and purchase.
6. Strong adaptability and wide range of uses.


product name O-ring
size all size
Material rubber and steel
color black
Serve Sales / After Sales
warranty period 1 year
Minimum order quantity 50PCS
Package Oupin packaging or neutral packaging can also be
customized packaging
delivery time 15-30 days
Shipping terms
payment terms T/T   D/P credit card
OEM&ODM: Custom-made samples are acceptable
material Low
NBR -40 120 Good resistance to alcohol,amines, petroleum oils, and
gasoline over a wide range of temperature. Also good resistance to caustic salts and fair acid. Poor in strong oxidants, chlorinated hydrocarbons, ketones, and esters
HNBR -25 140 HNBR is made from NBR by hydrogenation. It has high
temperature resistance, abrasion resistance and good
physical properties.
ACM -25 150 It is used in diaphragm, hose for automotive application.
Good resistance to heat, ozone and oil. Generally
attacked by water, alcohol, glycol and aromatic
hydrocarbons. The molecular structure contains ethyl acrylate (EA). Butyl acrylate (BA), and methoxy ethyl acrylate (MEA). High BA content get better low temperature resistance, and high MEA content get more oil resistance.
EPDM -40 125 Stable in polar fluids (alcohol, ketone, and glycol),
and hydrochloric acid. Due to the low specific gravity, it can compound with large amount filler.
VMQ -60 125 The most widely temperature ranges for application.
Good weather and ozone resistance, but poor mechanical property and chemical resistance.
FKM -20 250 Fluoroelastomers have a high degree of chemical
stability and are currently the best media resistance
of any elastomer. Type 26 fluoroelastomer resistant
to petroleum-based oils, diester oils, silicone ether
oils, silicic acid oils, inorganic acids, most organic, inorganic solvents, drugs and so on

Factory production line


Product Details

E机专用O型圈 2

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