The WERNERBA O-ring with the article number 300-OR-20×4-NBR72 is a standard sealing ring with an inner diameter of 20 mm and a cord diameter of 4 mm. Made from NBR72 (nitrile rubber), it offers good resistance to oils, fats, and hydraulic fluids. This product is designed for use in static or dynamic environments and is suitable for temperatures ranging from -30°C to +100°C. The Shore hardness of 72 provides a good balance between sealing capability and flexibility. Applications include sealing flanges, cylinders, and housings in hydraulic and pneumatic systems, as well as in general mechanical engineering. Availability and delivery time on request.
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