5pcs ID 20mm High-temperature Resistant Green Nitrile Skeleton Oil Seals, OD 28mm, Height 7mm High-speed Multi-lip Shaft Oil Seals, 20x28x7mm

Made of polymer nitrile material, it has the advantages of good elasticity and anti-aging Working temperature: -40~250℃, working pressure less than 0.3Bar, hardness 75A, working medium: mineral oil, synthetic oil, water With high-quality high-carbon steel spring, fatigue-resistant, long-lasting self-tightening performance, and enhanced sealing performance Multi-lip leak-proof design, with 3 layers of lips, one more layer than ordinary oil seals, with better sealing performance The design with external threads on the side has strong adaptability, easy installation and disassembly, and is more suitable for use environments that require higher outer diameter sealing requirements