Factory direct sales O-ring box HD700 HD820 HD1023 Factory price

Short Description:

O-rings are suitable for being installed on various mechanical equipment, and play a sealing role in static or moving states under specified temperature, pressure, and different liquid and gas media. Various types of seals are widely used in machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, construction machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and various instruments and meters. element. O-rings are mainly used for static seals and reciprocating seals.

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Standard size

Classification of O-rings

The classification of rubber O-rings mainly includes UHSO-rings, UHPO-rings, UNO-rings, DHO-rings, piston rod O-rings, high-temperature O-rings, high-pressure O-rings, corrosion-resistant O-rings, wear-resistant O-rings Damaged O-rings. It is suitable for being installed on various mechanical equipment, under the specified temperature, pressure, and in different liquid and gas media, it can play a sealing role in static or moving state. Various types of sealing elements are widely used in sanitary ware, ships, automobiles, hardware, electronics, toys, electrical appliances, machinery, and various instruments and meters. Rubber O-rings are mainly used for static sealing and reciprocating sealing. When used for rotary motion seals, it is limited to low-speed rotary seals. The rubber O-ring is generally installed in the groove with a rectangular cross-section on the outer or inner circle to play a sealing role. Rubber O-rings still play a good role in sealing and shock absorption in environments such as oil resistance, acid and alkali resistance, grinding, and chemical erosion. Therefore, the rubber O-ring is a widely used seal in hydraulic and pneumatic transmission systems.

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


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