This aftermarket replacement oil seal, part number 82013833NO, is designed to provide reliable sealing performance in a wide range of industrial and agricultural machinery. Manufactured by Corteco, a recognized name in sealing technology, this seal features an NBR (Nitrile Butadiene Rubber) construction. NBR is highly valued for its excellent resistance to petroleum-based oils, hydraulic fluids, water, and various chemicals, making it suitable for demanding environments where robust sealing is critical. The seal's precise dimensions are 195mm for the inner diameter, 220mm for the outer diameter, and a width of 20mm. The 'B1DUOSF' designation typically indicates a specific seal profile, often featuring a single sealing lip with an additional dust lip (DUO) to prevent ingress of contaminants like dirt and moisture. This dual-lip design significantly extends the lifespan of bearings and other critical components by maintaining a clean operating environment and preventing lubricant leakage. As a non-OEM alternative, this replacement part offers a cost-effective solution for maintaining equipment integrity and preventing fluid loss. It is an ideal choice for replacement applications where the original part matches these specifications. Always ensure compatibility with your specific machinery and application requirements before purchase to guarantee optimal performance and fit.