NAT-3066 Non-Asphaltic Open Gear Lubricant
High viscosity, extreme pressure, non-asphaltic open gear lubricant for ball mills, grinding mills, cement kilns, and dryers. EP weld >800 kg, FZG +13. Meets Falk, Metso, Foster Wheeler, and FL Smidth specifications. TCLP safe.
Overview
NAT-3066 is a cut-back, high viscosity, extreme pressure, non-asphaltic type open gear lubricant formulated to lubricate heavily loaded open gears and bushings such as those found in ball mills, pebble mills, grinding mills, bowl mills, cement kilns, and dryers. NAT-3066 can be applied using a sump-type system where an oiler wheel drags the lubricant and deposits it on the pinion gear. NAT-3066 is also pumpable using Lincoln and Farval systems and automatic lubrication systems using drip tubes, spray nozzles, or airless spray systems.
Once applied to the surface of the gears, NAT-3066 forms a strong, hydrodynamic lubrication film that keeps the gear teeth and the contacting metal surfaces of bearings, bushings, and rollers separated during severely loaded conditions. Ideally, NAT-3066 should be sprayed intermittently onto the gears, allowing the product to form a pliable, semi-dry film on the gears with a robust high-viscosity film that clings tenaciously to gears and resists "squeeze out," "sling out," and "fling off." For large, heavily loaded ball mill gears, a lubrication frequency of 15 to 20 minutes is normal.
NAT-3066 meets the specifications of Falk, Metso Minerals (Svedala), Foster Wheeler, FL Smidth, and FFE Minerals. It is compounded from a select blend of petroleum distillates, petroleum base oils, and resins in combination with polymeric synthetic base fluids along with a synergistic blend of anti-wear, extreme pressure, antioxidant, rust, and corrosion inhibitor additives.
Benefits
- Exceptional anti-wear and extreme pressure properties to provide protection against pitting, spalling, scuffing, and metal deformation under severely loaded conditions.
- Formation of an almost indestructible adhesive film that provides a "cushioning" effect during boundary lubrication conditions and very slow speeds.
- Will not harden or build up in gear tooth roots.
- Ability to drain freely from gear guards.
- Excellent resistance to rain, snow, moisture, and water wash-out.
- Exceptional resistance to film destruction by contaminating oils or greases.
- Resistance to the adhesion of dust and dirt.
- Minimization of cold contact metal welding.
- Formation of a brown coating that is visible on the gears but transparent enough to allow gear inspection using a strobe light.
- TCLP Safe — passes the U.S. Environmental Protection Agency's Toxic Characteristic Leaching Procedure. The spent product is not considered to be a characteristic hazardous waste.
Technical Specifications
| ASTM # | Property | Medium | Heavy |
|---|---|---|---|
| D-455 | Kinematic Viscosity (Base Oil) cSt @ 40°C | 100,000 | 100,000 |
| D-455 | Kinematic Viscosity (Base Oil) cSt @ 100°C | >1,000 | >1,000 |
| D-455 | Kinematic Viscosity (Finished Product) cSt @ 40°C | 3,379–4,130 | 5,274–7,000 |
| D-455 | Kinematic Viscosity (Finished Product) cSt @ 100°C | 193.78 | 237.82 |
| D-92 | Flash Point °C Closed Cup | 120° | 132° |
| D-2596 | Four Ball EP Weld Point, kg | >800 | >800 |
| D-2596 | Load Wear Index | 151.8 | 158.7 |
| D-4172 | Four Ball Wear, Scar Diameter, mm | 0.58 | 0.48 |
| D-1743 | Rust Test | Pass | Pass |
| D-4048 | Copper Strip Corrosion | 1B | 1B |
| DIN 51354 | FZG Load Stage Failure | +13 | +13 |
| — | Low Temp Pumpability, Lincoln Ventmeter <400 psi, °C (°F) | -17.7° (0°) | -12.2° (10°) |