What are the properties of the material used on the oil seal?

What are the properties of the material used on the oil seal?

2020-01-18

What are the properties of the material used on the oil seal?

Oil Seal as the name implies to seal the role of oil.Oil seals for different mechanical equipment and industries are a bit different. The big difference is the material used for oil seals. different materials are resistant to medium and high and low temperature.Let's look at the following several common oil seal material properties and features in the oil seal.

 

The common materials of oil seals are: acrylic rubber, fluorine rubber, silicone rubber, acrylic rubber, polyurethane, PTFE, etc.When selecting the material of the oil seal, it is necessary to consider the compatibility of the material to the working medium, the adaptability to the working temperature range and the ability of the lip to follow when the rotation axis rotates at high speed.The temperature of the lip edge of the general Oil Seal is higher than the working medium temperature 20 ~ 50 ℃, should pay attention to when selecting the oil seal material.

 

Please refer to: rubber type and properties for details.

 

The working range of the oil seal is related to the material used by the Oil Seal: The material is Ding Qing rubber (NBR)For-40 ~ 120 ℃, Alec rubber (ACM)-30 ~ 180 ℃, fluorine rubber (FPM)-25 ~ 300 degrees C.