Whether it's a commercial vessel's transmission or a submarine's primary propulsion gears, lubricants provide the durability and chemical stability needed to stay operational where maintenance is most difficult. EP®-80 Image Generation System | Collins Aerospace - RTX
When you’re operating hundreds of feet below the surface, equipment failure isn't just an inconvenience—it’s a critical risk. For the gears and turbines powering modern marine vessels and submarines, the lubricant of choice is often a specialized (Extreme Pressure) oil. EP 80 SUB
Standard oils can shear or thin out when subjected to the high torque and shock loads found in marine reduction gears. EP 80 lubricants are formulated with sulfur-phosphorus additives that form a "sacrificial" chemical layer on metal surfaces. Under intense pressure, this layer protects gear teeth from welding together or scuffing, ensuring smooth power transfer even during rapid maneuvers. 2. Specialized for Submarine Specs Not every gear oil can go deep. High-tier options like Chevron GST 2190 EP Go to product viewer dialog for this item. Whether it's a commercial vessel's transmission or a
meet stringent military specifications (such as MIL-PRF-17331L) required for Navy vessels and submarines. These oils must maintain a high viscosity index, meaning they stay thick enough to protect gears at operating temperatures but fluid enough to flow instantly during a cold start in frigid waters. 3. Fighting the Constant Threat: Corrosion and Foam Standard oils can shear or thin out when
: It separates readily from water, allowing moisture to be drained away rather than letting it circulate and cause rust.
While "EP 80 SUB" could refer to a few things, it most commonly points to heavy-duty lubricants like the Chevron GST 2190 EP ISO 80 , which is specifically rated for military vessels and submarines.
: Rapidly moving gears can whip air into the oil, creating foam that lacks lubricating power. EP additives include anti-foaming agents to ensure a solid film of protection stays on every gear flank. The Bottom Line