Conforming to MIL-PRF-83261 requirements, the outstanding qualities of Tribolube-2N is its wide operating temperature range, extreme pressure and anti-wear characteristics, non-migratory nature, low foreign and/or opaque particle content, high resistance to microwave energy, and its compatibility with plastic and elastomeric seals. Shelf life exceeds 10 years. Tribolube-2NMS maintains the same physical properties as Tribolube-2N but is specially formulated with MoS2 to enhancemore its already excellent extreme pressure and anti-wear properties. Tribolube-2NWS maintains the same physical properties as Tribolube-2N but is specially formulated with a special extreme pressure additive to enhance its already excellent extreme pressure and anti-wear properties.
Applications
Aircraft actuators, gears, gimbal rings, oscillation bearings, antifriction and plain spherical bearings. It is especially suitable for use in applications using miniature bearings. Blower motors, motor generators, plastic clutches and gears, servo motors, microwave ovens, speedometer cables, motorcycle and automotive distributors, typewriters, business machines, etc. Other applications include subfractional horsepower gear motors, camera drive systems, microswitch assemblies, reduction gears, and scientific instruments. less
Specifications
Temperature Range |
N/A -100 to 450 ºF |
NLGI No. |
N/A 1 |
Maximum Low Temperature Torque
|
N/A 5,000 gm-cm |
Maximum Low Temperature Torque
|
N/A 1,000 gm-cm |
Low Temperature Torque
|
N/A 2,145 gm-cm |
Low Temperature Torque
|
N/A 585 gm-cm |
Low Temperature Torque
|
N/A 460 gm-cm |
Low Temperature Torque
|
N/A 38 gm-cm |
MIL-PRF-83261B Requirements
MIL-PRF-83261B Requirements |
N/A
Worked Penetration @60 Strokes - 270-350 Worked Stability @ 1,00,000 Strokes - 375 max. Dropping Point - 450 ºF Evaporation 22 hrs @ 450 ºF - 15 % max. Oil Separation 30 hrs @ 45 ºF - 25.0 % max. Water Washout 1 hr @ 105 ºF - 20.0 % max. Load Wear Index - 90 min. Steel-on-Steel Wear 1,200 rpm, 40 kg, 167 ºF, 2 hrs, 52100 Steel - 1.30 mm max. Steel-on-Steel Wear 1,200 rpm, 40 kg, 450 ºF, 2 hrs, M-50 Steel - 1.30 mm max. High Temperature Performance 450 ºF, 20,000 rpm, 5 lbs. - 500 hrs min. High Temperature Performance 450 ºF, 10,000 rpm, 5 lbs. - 500 hrs min. Low Temperature Torque @ -100 ºF, Starting - 5,000 gm-cm max. Low Temperature Torque @ -100 ºF, Running - 1,000 gm-cm max. |
Fundamentals
N/A
Function of Lubricating Greases
All of the grease components affect the physical and chemical properties. Standardized testing must be used to provide useful information about the properties of grease lubricants. Such information can then be used to compare and select a grease for a specific application. Some of these tests are described in following sections. Purpose of Synthetic Lubricants Demands placed upon lubricants have become increasing severe with advances in industrial machinery and equipment design. Higher operating temperatures, speeds and gear and bearing loads are stressing the capabilities of conventional petroleum-based lubricants. The OEM's have increased demands for "sealed for life" applications. Such applications require synthetic lubricants. Synthetic lubricants were developed to meet demanding requirements which exceed the operational limits of conventional petroleum based lubricants. Because they are man-made , synthetics can be better tailored to their role as a lubricant by meeting predetermined physical and chemical properties. Formulated from pure hydrocarbons, synthetics do not contain the impure components that adversely affect the physical and chemical stability of petroleum based lubricants. Synthetic oil and grease lubricants have been solving demanding lubrication problems by replacing petroleum lubricants in applications that exceed their environmental, operational, or service life limitations. In such applications, synthetics pay for themselves many times over in reduced component failure, repair costs, warranty costs, down time, and increased service life. Synthetic vs Petroleum Lubricants Performance Both oil and grease lubricants made from synthetic based fluids have a much wider operating temperature range and are more thermally and oxidatively stable than lubricants made from petroleum-based fluids. Low Temperature Performance At very low temperatures, most petroleum-based oil and grease lubricants thicken and are usually limited to temperatures no lower than -20 ºF unless high temperature performance is sacrificed. In contrast, synthetic oil and grease lubricants have good low temperature viscosity and fluidity characteristics down to as low as -140 ºF, and are still capable of operating at temperatures as high as 600 ºF. High Temperature Performance Lubricants are susceptible to failure at high temperature, especially in thin films after long term exposure. Recent research in boundary lubrication confirms the primary role of high temperature in lubricant degradation. Increasing temperature rather than increasing shear load has been found to induce most lubricant failures. Petroleum-based oil and grease lubricants have an upper temperature limit of about 250 ºF to 300 ºF. Above these temperatures they become fluid and volatile. If grease lubricated machinery is operated above that temperature limit, the lubricant breaks down and may melt or form hard carbon deposits. Some synthetic grease lubricants can operate up to about 600 ºF without melting. Oxidation Stability Oxidation is the primary breakdown mode of most lubricants, leading to the formation of sludge and other corrosive compounds. When lubricants are exposed to air, oxygen, or other strong oxidizing chemicals, petroleum- based lubricants deteriorate and break down easily, especially at high temperatures. Many chemicals can attack petroleum-based lubricants resulting in gummy deposits. Lubricant failure may result in corrosion of parts, deterioration of seals, stuck or worn bearings, and product contamination. This results in frequent equipment down time for relubrication, replacement of parts, cleaning, and maintenance. The thermal and oxidative stability of synthetics often makes them the only alternative for very cold, extremely hot, sealed for life applications, or harsh operating environments. Dust, dirt, and other debris can create additional problems for petroleum-based lubricants. These lubricants tend to attract contaminates because they are naturally occurring compounds which have unreacted molecular end groups. These end groups produce electrical charges at the surface, so when a charged dust or dirt particle comes near, they are attracted to the surface of the lubricant. The dust particles can be abrasive and damage parts and machinery. It is this characteristic of petroleum-based lubricants that create problems in dusty and dirty applications such as paper and textile mills, printing plants, and metal-forming operations. This situation leads to frequent machine down time for cleaning and relubrication. Because synthetics are man-made , they are fully reacted chemicals and do not have the unreacted end groups which attract dust and dirt. Wear of moving parts can thus be reduced in dusty environments. Load and Wear Performance Synthetics lubricants can provide increased wear protection over petroleum-based lubricants due to better viscosity-temperature properties. Tribolube Synthetic Lubricating Oils and Greases are specially formulated to function in applications or environmental conditions where standard "general purpose" lubricants will not perform or will perform only marginally. Tribolube lubricants outperform conventional lubricants under conditions such as hard vacuums, low and high operating temperatures, oxidizing environments, high rotating speeds, extremely high load conditions, applications where little wear can be tolerated, high radiation levels, extremely corrosive environments, and where long life is mandated. What are the Pay Offs? The failure of petroleum lubricants to give adequate performance is making greases and oils formulated from synthetic hydrocarbon fluids increasingly attractive. Reduced maintenance costs for manpower and replacement parts, and reduced downtime with associated production loss, make synthetic lubricants cost effective in most applications. The demand for lubricant stability over increasingly wider ranges of operating conditions exceeding the capability of petroleum lubricants is making synthetics mandatory in many OEM applications. The failure of petroleum lubricants to give adequate performance is making greases and oils formulated from synthetic hydrocarbon fluids increasingly attractive. Reduced maintenance costs for manpower and replacement parts, and reduced downtime with associated production loss, make synthetic lubricants cost effective in most applications. The demand for lubricant stability over increasingly wider ranges of operating conditions exceeding the capability of petroleum lubricants is making synthetics mandatory in many OEM applications. |