MOBIL ARAPEN RB-320

MOBIL ARAPEN RB-320 is a high-performance long-lite 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-based 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 an 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.

Product Type: Grease

Application Area: Roller Bearings

Features: Excellent Rust Protection, High Oxidation Stability, High Performance, Long Oil Life, Optimal Lubrication, Shear Resistant

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Identification & Functionality

Base Oil Type: Mineral Oil
Product Type: Grease
Technologies: Ready-to-Use Products
Product Families: Ready-to-Use Products — Fluids & Lubricants
Greases

Features & Benefits

Ready-to-Use Product Features

Excellent Rust Protection,

High Oxidation Stability,

Product Highlights

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 limatic conditions
Exhibits excellent oxidation stability, shear stability, seal compatibility, and water resistance for extended grease life and equipment integrity

Applications & Uses

Markets: Automotive & Transportation
Applications: Automotive & Transportation — Lubricants & Functional Fluids
Automotive Fluids & Lubricants
Application Area: Roller Bearings

Properties

NLGI Grade

NLGI 1.5

Typical Properties


	Value	Units	Test Method / Conditions
Base Oil Viscosity (at 100°C, MOV of Grease)	14.7	mm²/s	AMS 1700
Dropping Point	180	°C	ASTM D2265
Oxidation Stability (Pressure drop at 100 hr)	1	psi	ASTM D942
Oxidation Stability (Pressure drop at 500 hr)	3	psi	ASTM D942
Penetration (60 x 0.1 mm)	305	-	ASTM D217
Penetration (Change from 60x to 100,000x, 0.1 mm)	20	-	ASTM D217
SKF Emcor Rust Test (Distilled Water, Bearing 1)	0	-	ASTM D6138
SKF Emcor Rust Test (Distilled Water, Bearing 2)	0	-	ASTM D6138