NAT-3088 Multi-Purpose Open Gear Lubricant
Premium grade para-synthetic, extreme pressure, multi-purpose open gear lubricant for mining equipment — shovels, draglines, and excavators. Contains MoS₂ and solid lubricants with EP weld >800 kg and FZG +13. Meets P&H 520/464 and Bucyrus SD4713 specifications.
Overview
NAT-3088 is a premium grade, extreme pressure, para-synthetic, multi-purpose open gear lubricant designed for use on open gears in mining equipment — shovels, draglines, excavators, stackers, and reclaimers. It can also be used in the lubrication of sleeve-type bushings and slow-moving, heavily loaded bearings, shovel dipper sticks, circle rails and rollers, ball mills, and slow-moving wire ropes.
NAT-3088 is compounded from a select blend of petroleum, resins, and polymeric synthetic base fluids.
NAT-3088 forms an adhesive film that resists "squeeze out," "sling out," and "fling off," allowing the product to cling tenaciously to gears in a vertical orientation.
NAT-3088 contains a synergistic blend of anti-wear and extreme pressure additives, antioxidants, corrosion inhibitors, molybdenum disulfide, and other solid lubricants providing:
- Excellent anti-wear and extreme pressure protection for heavily loaded open gears, bearings, and bushings.
- Extended component life and reduced contact temperatures.
- Durable adhesive protective coating with high resistance to water and dust adhesion.
- Excellent resistance to rain, snow, moisture, and water wash-out.
- Minimisation of cold contact metal welding.
- Remains soft and pliable to prevent hardening or build-up in gear tooth roots.
- Drains freely from gear guards.
- Excellent corrosion resistance and protection of bronze and brass components.
NAT-3088 meets P&H Material Specifications 520 and 464 and Bucyrus specification SD4713.
Temperature Specifications
| Grade | Meets Bucyrus June 2011 Update | Safe Operating Temperature Range |
|---|---|---|
| Arctic | No | -40°C to +10°C (-40°F to +50°F) |
| Medium | No | -26°C to +40°C (-15°F to +104°F) |
| Heavy | Yes, +10°C to +35°C | +2°C to +121°C (+35°F to +250°F) |
| Extra Heavy | Yes, +25°C to +50°C | +2°C to +121°C (+35°F to +250°F) |
Technical Specifications
| ASTM # | Property | Arctic | Medium | Heavy | Extra Heavy |
|---|---|---|---|---|---|
| — | Consistency | Viscous | NLGI 000 | NLGI 0 | NLGI 0–1 |
| D-455 | Kinematic Viscosity (Base Oil) cSt @ 40°C | 912.12 | 2,772.66 | 3,946.93 | 6,714.63 |
| — | Specific Gravity @ 15.5°C | 0.96 | 0.96 | 0.96 | 0.96 |
| D-92 | Flash Point °C Closed Cup | 70° | 73° | 140° | 140° |
| D-2596 | Four Ball EP Weld Point, kg | >800 | >800 | >800 | >800 |
| D-2596 | Load Wear Index | 142.7 | 149.1 | 143.4 | 152.4 |
| D-4172 | Four Ball Wear, Scar Diameter, mm | 0.65 | 0.58 | 0.63 | 0.66 |
| D-1743 | Rust Test | Pass | Pass | Pass | Pass |
| D-4048 | Copper Strip Corrosion | 1B | 1B | 1B | 1B |
| DIN 51354 | FZG Load Stage Failure | +13 | +13 | +13 | +13 |
Lincoln Ventmeter Pumpability
| Temperature | Arctic | Medium | Heavy | Extra Heavy |
|---|---|---|---|---|
| kPa (Psi) @ 10°C (50°F) | — | — | 1,792.64 (260) | 1,840.9 (267) |
| kPa (Psi) @ -1°C (30°F) | — | — | 4,757.38 (690) | 3,861.0 (560) |
| kPa (Psi) @ -12°C (10°F) | — | 482.63 (70) | — | — |
| kPa (Psi) @ -18°C (0°F) | 413.68 (60) | — | — | — |
| kPa (Psi) @ -28°C (-20°F) | 2,620 (380) | 2,206.32 (320) | — | — |
| kPa (Psi) @ -40°C (-40°F) | 4,205.8 (610) | 4,688.4 (680) | — | — |