Mobil Arapen™ RB 320
Mobil grease , Barbados
Product Description
Mobil Arapen RB 320 is a high performance long-life grease developed for the roller bearings of railroad car journals where no provision is provided for in-service re-lubrication. It is formulated with a mineral base fluid and a mixed lithium / calcium soap thickener. Mobil Arapen RB 320 grease has the high oxidation stability required to maintain good lubrication throughout extended periods of service or storage. It is highly resistant to chemical deterioration that might otherwise produce acids or deposits that are detrimental to long bearing life. Mobil Arapen RB 320 grease has exceptional ability to withstand shear, i.e. retain consistency after prolonged working, as in the churning action of an anti-friction bearing. This grease has been shown to have little effect on seal materials. Largely because of its special calcium-lithium-soap base, Mobil Arapen RB 320 grease has a high resistance to structural change in the presence of water. It is also inhibited to give protection against rusting.
Mobil Arapen RB 320 is fully approved against Specification M-942 of the Association of American Railroads for Journal Roller Bearings Grease for non-field lubricated bearing applications. It is used by major manufacturers of railroad journal bearings as the factory-fill lubricant. Mobil Arapen RB 320 has an application temperature range of -20ºC to +120ºC.
Features and Benefits
Mobil Arapen RB 320 railroad car journal bearing grease offers the following features and benefits:
• Approved against AAR specification AAR-942
• Formulated for long service life over a wide range of climatic conditions
• Exhibits excellent oxidation stability, shear stability, seal compatibility, and water resistance for extended grease life and equipment integrity
Applications
• Roller bearings of railroad car journals where no provision is proided for in-service re-lubrication.
• Factory fill lubricant of major railroad journal bearing manufacturers
Specifications and Approvals
|
This product has the following approvals: |
|
AAR-M942 |
Properties and Specifications
|
Property |
|
|
Grade |
NLGI 1.5 |
|
Thickener Type |
Lithium Calcium |
|
Color, Visual |
Light Amber |
|
Dropping Point, °C, ASTM D2265 |
180 |
|
Oxidation Stability, Pressure drop at 100hr, psi, ASTM D942 |
1 |
|
Oxidation Stability, Pressure drop at 500 hr, psi, ASTM D942 |
3 |
|
Penetration, 60X, 0.1 mm, ASTM D217 |
305 |
|
Penetration, Change from 60X to 100,000X, 0.1 mm, ASTM D217 |
+20 |
|
SKF Emcor Rust Test, Distilled Water, ASTM D6138 |
0 , 0 |
|
Viscosity @ 40 C, Base Oil, mm2/s, ASTM D445 |
152 |
|
Viscosity @ 100 C, Base Oil, mm2/s, ASTM D445 |
14.5 |
|
Viscosity Index, ASTM D2270 |
93 |
Health and safety
Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @ http://www.msds.exxonmobil.com/psims/psims.aspx
All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise.
09-2024