
Amazon.com: Chul hsin TC Inside Diameter 19 mm, Rubber Frame,

61s1Q36-23L._AC_UF894,,

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Tg4-Oil-Seal-Three-Lip-Radial-,

TC Inside Diameter 19 mm, Rubber Frame Oil Seal, Fluorine
- Fkm fluorororubber is resistant to aging, heat and oil, suitable for almost all lubricants, fuels, and gasoline. It is not easy to cure oil with extreme pressure additives but its cold resistance and high temperature wear resistance is poor, and the permanent compression deformation is large. Applicable temperature is -4 to 488°F (-20 to 220°C)
- NBR Butadiene Rubber is heat and abrasion resistant, resistant to all kinds of lubricants, grease, oil and gas mixtures, suitable temperature -40 to 120 degrees Celsius
Fkm fluorororubber is resistant to aging, heat and oil, suitable for almost all lubricants, fuels, and gasoline. It is not easy to cure oil with extreme pressure additives but its cold resistance and high temperature wear resistance is poor, and the permanent compression deformation is large. Applicable temperature is -4 to 488°F (-20 to 220°C).
NBR Butadiene Rubber is heat and abrasion resistant, resistant to all kinds of lubricants, grease, oil and gas mixtures, suitable temperature -40 to 120 degrees Celsius