O-Ring 81820039 | High-Pressure Nitrile Rubber O-Ring for Hydraulic Rock Drills

High-Pressure Nitrile Rubber O-Ring for Hydraulic Rock Drills
Engineered for extreme underground mining conditions, this O-ring ensures reliable sealing in high-vibration hydraulic rock drill applications. Constructed from 70 Shore A nitrile rubber (NBR), it withstands continuous dynamic loads while resisting mineral oils and abrasion in harsh environments .

Technical Specifications & Design
The O-ring features a 25 mm inner diameter (ID) and 3.5 mm cross-section (CS), adhering to ISO 3601-1 Class 1 dimensional tolerances for precision fit in hydraulic cylinder assemblies and drill rig components . Its nitrile rubber compound provides a temperature range of -40°C to +125°C, making it suitable for both cold and high-heat mining operations . The 20 MPa static pressure rating ensures durability in high-pressure hydraulic systems .