How to choose O-ring according to your needs

O-ring is a common sealing parts, it is processed by rubber, a wide range of applications, can be used in automobiles, hydraulic, machinery, clocks, ships and many other fields, however, the selection of O-ring is also particular.

Common O-ring materials are NBR, FKM, VMQ and other materials, according to the use of unnecessary requirements, in the purchase of O-rings should also pay attention to discrimination.

First, the characteristics of different materials

• O-rings made of NBR are the most common and versatile, with a lower price and better oil resistance, which can meet most daily use.
• FKM material O-ring has a good performance in many aspects, because of its good oxidation resistance and wear resistance, it has an irreplaceable position in aerospace, aviation, petroleum and many other fields.
• The O-ring of VMQ material has a large temperature range, which can be used in some special industries and fields, However, its wear resistance is weak, and it is generally not suitable for seals that need to be rotated.

Second, different material characteristics table