Imported Japanese NOK sealing ring NBR nitrile Japanese standard American Standard O-ring in stock

  Imported Japanese NOK sealing ring NBR nitrile Japanese standard American Standard O-ring in stock
Size or product model O-ring: inner diameter * wire diameter or outer diameter * wire diameter (unit: mm) oil seal: inner diameter * outer diameter * thickness unit: mm nitrile rubber O-ring (NBR) a features: good sealing effect, easy installation and affordable price; B temperature resistance: &ge- 90°,& le; 120°; C performance: good oil resistance, wear resistance, aging, can effectively prevent oil and gas leakage Silicone O-ring (VMQ) a features: soft material, good sealing effect and easy installation; B temperature resistance: &ge- 120°,& le; 250°; C performance: high temperature resistance, oil resistance, can effectively prevent oil and gas leakage, and play a good sealing effect Fluororubber O-ring (FKM) a features: hard material, high strength, not easy to damage and aging; B temperature resistance: &ge- 200°,& le; 250°; C performance: high temperature resistance, wear resistance, high pressure resistance, acid and alkali resistance, which can effectively prevent the deformation and aging of O-ring
Note: please contact customer service for detailed material description, specification confirmation and other product certification
We will serve you according to the principle of customer first Due to the various specifications of O-rings, they cannot be listed one by one
Please measure the size and confirm the material before purchasing, so as to avoid the trouble of both parties
Basic rules of O-ring: outer diameter * line diameter thickness (unit: mm) inner diameter * warp diameter thickness (unit: mm) specification of outer diameter and inner diameter; Sealing washer: outer diameter * inner diameter * thickness Imported O-ring butyl fluoride rubber is one of the sealing products with wide application and reliable sealing effect
However, if the O-ring is installed or used improperly, there will be poor sealing effect or leakage, and even O-ring is bitten
There are usually the following situations: 1 / the slotting size design of O-ring is unreasonable, and there is out of tolerance, especially when the depth size is too large, As a result, the compression deformation of O-ring after installation is insufficient, which affects the sealing effect
Generally, the compression deformation of O-ring after installation should be between 18% ~ 22%
When the section size of O-ring is large, the compression relative deformation is small, while when the section size is small, the compression relative deformation is large
There is too much difference between the size of 2 / O-ring and the actual installation size
The O-ring works when the section size is reduced after stretching, resulting in insufficient compression deformation and leakage
3 / when installing the O-ring, the sealing surface has no smooth chamfer or rounding, which will scratch the O-ring and cause leakage
The material of the 4 / O-ring is not suitable for the sealing medium and becomes invalid after being eroded
The 5 / O-ring will be aged and deteriorated after long-term use, and the elasticity will be reduced or invalid
Therefore, the O-ring is generally replaced during equipment overhaul Main uses of NBR: It is often used to make all kinds of oil resistant molded products, such as O-ring, oil seal, diaphragm, valve, bellows, etc
it is also used to make rubber plate and wear-resistant parts, and oil resistant products, such as oil pipe, tape, nitrile rubber O-ring, rubber diaphragm and large oil bag 2、 Advantages of NBR: 1) Excellent performance and long service life
The working life of dynamic pressure seal is 5 & mdash; longer than that of conventional rubber seal products; 10 times, up to tens of times, and can have the same service life as the sealing matrix under some conditions 2) The friction resistance is small, and the dynamic and static friction forces are equal, which is & ldquo; 0” V-shaped rubber ring 3) Strong wear resistance, with automatic elastic compensation function after the sealing surface is worn 4) NBR has good self-lubricating performance
It can be used as oil-free lubrication seal