Mobil Arapen RB 320 (5 Gal. Pail)

Mobil 101672

Developed for use on roller bearings of railroad car journals where no provision is provided for in-service re-lubrication, Mobil Arapen RB 320 is an NLGI Grade 1.5 long-life, high-performance grease with a mineral base fluid and mixed lithium/calcium soap thickener which withstands exposure to water and a wide range of temperatures (-20 to 120 degrees C). Mobil Arapen RB 320 is specially formulated to resist chemical deterioration, inhibiting production of acids or deposits that reduce bearing life. Its high oxidation stability and effectiveness against shear and friction over prolonged service ensures equipment integrity. Mobil Arapen RB 320 has negligible effect on seal materials and retains its effectiveness over lengthy periods of storage or heavy usage. Major manufacturers of railroad journal bearings use Mobil Arapen RB 320 as the factory-fill lubricant, and it is fully approved against Specification M-942 of the Association of American Railroads for Journal Roller Bearings Grease for non-field lubricated bearing applications.

Product Data Sheet

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
  • Roller bearings of railroad car journals where no provision is provided for in-service re-lubrication.
  • Factory fill lubricant of major railroad journal bearing manufacturers
Mobil Arapen RB 320 has the following builder approvals:
AAR-942 X
Mobil Arapen RB 320
NLGI Grade 1.5
Thickener Type Lithium/Calcium soap
Color, Visual Light Amber
Penetration, Worked, 25º C, ASTM D 217 305
Dropping Point, ºC, ASTM D 2265 180
Viscosity of Oil, ASTM D 445
cSt @ 100º C 14.7
Penetration, ASTM D 217, Change from 60X to 100,000X, mm/10 +20
Emcor Rust, ASTM D 6138, Distilled Water 0/0
Oxidation Stability, ASTM D 942:
- pressure drop at 100 hrs, psi 1
- pressure drop at 500 hrs, psi 3
There are no reviews for this item. Write Review
Start typing your question and we'll check if it was already asked and answered. Learn More
No questions have been asked about this item. Be the first!