Crankshaft Oil Seal for FMC BEAN E04/R2020 (SKU:1101095) Features OEM rubber coating (ASTM D2000-22 NBR compliant) with quenched metal core, API 7K certified for mud pumps. Temperature resistance -30°C~120°C, salt spray tested >1200hrs corrosion-free. Compatible with FMC E04/R2020 series pumps, compressive strength ≥80MPa, dynamic leakage ≤0.3mL/min.
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