Mobilgear 600 XP Series  

Mobil Industrial, United States

Gear Oil

Product Description

The Mobilgear 600 XP Series are extra high performance gear oils having outstanding extreme pressure characteristics and load-carrying properties, intended for use in all types of enclosed gear drives with circulation or splash lubrication systems. Mobilgear 600 XP Series is designed to stay ahead of the changing needs of gearbox technology. Gearbox technology design trends are towards smaller units with similar power throughput. This increase in power density places increased demands on gear oils. Mobilgear 600 XP Series oils are formulated to meet the stress by providing extra protection for gears, bearings and seals.

Mobilgear 600 XP Series is formulated to protect gear teeth from wear at its earliest stages. Microscopic wear, called micropitting, can lead to significant gear tooth damage. Mobilgear 600 XP Series exceeds the industry requirement for bearing wear protection. In fact, Mobilgear 600 XP Series provides up to 15 times the wear protection as measured by the industry standard FAG FE 8 test. Mobilgear 600 XP Series’ balanced formulation is able to provide maximum wear and corrosion protection while maintaining compatibility with common gearbox seal materials. Mobilgear 600 XP helps to maintain gearbox seal integrity thereby preventing oil leaks and keeping contamination out. By protecting the gears, bearings and seals, Mobilgear 600 XP can improve equipment reliability and increase productivity.

Mobilgear 600 XP Series oils are recommended for industrial spur, helical and bevel enclosed gears with circulation or splash lubrication, operating at bulk oil temperatures up to 100ºC. They are particularly suitable for gear sets working under heavy or shock loads. Mobilgear 600 XP oils also find broad application in marine gearing applications. They may also be used in non-gear applications include highly loaded and slow speed plain and rolling contact bearings.


Features and Benefits

Mobilgear 600 XP Series products are a leading member of the Mobil brand of industrial lubricants that enjoy a reputation for innovation and high performance capability. These mineral-based products are designed to provide high quality industrial gear oils, meeting the latest industry standards and with high versatility to lubricate a broad range of industrial and marine equipment.

Mobilgear 600 XP Series products offer the following features and potential benefits:

Features Advantages and Potential Benefits
Enhanced gear wear protection from micropitting Less gear and bearing wear resulting in less unexpected downtime
Reduced debris denting from generated wear particles Up to 22% improvement in bearing life reducing bearing replacement costs and improving productivity
Improved bearing wear protection Improved bearing life resulting in higher productivity
Outstanding compatibility with a range of seal materials Reduced leakage, oil consumption and contamination ingress helping to reduce maintenance, extend gearbox reliability and higher productivity
Excellent resistance to oil oxidation and thermal degradation Helps extend lubricant life with lower lubricant and lubrication costs and reduced scheduled downtime.
High resistance to sludge and deposit formation Cleaner systems and reduced maintenance
Wide range of applications Fewer grades of lubricant required because of wide range of application, leading to lower purchase and storage costs and less danger of using wrong lubricant
Optimised resistance to rust and corrosion of steel and corrosion of copper and soft metal alloys Excellent protection of machine parts, with reduced maintenance and repair costs
Resistance to foaming and emulsion formation Effective lubrication and problem free operation in the presence of water contamination or in equipment prone to oil foaming



Mobilgear 600 XP lubricants are used in a wide range of industrial and marine applications, especially spur, helical, bevel and worm gearing. Specific applications include:

  • Industrial gearing for conveyers, agitators, dryers, extruders, fans, mixers, presses, pulpers, pumps (including oil well pumps), screens, extruders and other heavy duty applications
  • Marine gearing including main propulsion, centrifuges, deck machinery such as winches, windlasses, cranes, turning gears, pumps, elevators and rudder carriers
  • Non-gear applications include shaft couplings, screws and heavily loaded plain and rolling contact bearings operating at slow speeds.
  • Mobilgear 600 XP 100, 150, 220, 320, 460, and 680 are approved by Siemens AG for use in Flender gearboxes


Specifications and Approvals

Mobilgear 600 XP meets or exceeds the requirements of: Mobilgear 600 XP 68 Mobilgear 600 XP 100 Mobilgear 600 XP 150 Mobilgear 600 XP 220 Mobilgear 600 XP 320 Mobilgear 600 XP 460 Mobilgear 600 XP 680
AGMA 9005-E02 2 EP 3 EP 4 EP 5 EP 6 EP 7 EP -
DIN 51517-3: 2009-06 X X X X X X X
ISO 12925-1 Typ CKD 68 CKD 100 CKD 150 CKD 220 CKD 320 CKC 460 CKC 680
Mobilgear 600 XP has the following builder approvals: Mobilgear 600 XP 68 Mobilgear 600 XP 100 Mobilgear 600 XP 150 Mobilgear 600 XP 220 Mobilgear 600 XP 320 Mobilgear 600 XP 460 Mobilgear 600 XP 680
SIEMENS AG Flender gear units, T 7300, Table A-a, Flender Code No.   A17 A16 A15 A14 A13 A12
SIEMENS AG Flender gear units, T 7300, Table E-am, Flender Code No.     E76        
Mueller Weingarten DT 55 005   CLP 100 CLP 150 CLP 220 CLP 320 CLP 460  


Typical Properties

Mobilgear 600 XP Mobilgear 600 XP 68 Mobilgear 600 XP 100 Mobilgear 600 XP 150 Mobilgear 600 XP 220 Mobilgear 600 XP 320 Mobilgear 600 XP 460 Mobilgear 600 XP 680
ISO Viscosity Grade 68 100 150 220 320 460 680
Viscosity, ASTM D 445              
mm²/s @ 40ºC 68 100 150 220 320 460 680
mm²/s @ 100ºC 8.8 11.2 14.7 19.0 24.1 30.6 39.2
Viscosity Index, ASTM D 2270 101 97 97 97 97 96 90
Pour Point, ºC, ASTM D 97 -15ºC
Flash Point, ºC, ASTM D 92 230 230 230 240 240 240 285
Density @15.6 ºC, ASTM D 4052, kg/l 0.88 0.88 0.89 0.89 0.90 0.90 0.91
FZG Micropitting, FVA 54, Fail Stage / Rating   10 / High 10 / High 10 / High 10 / High 10 / High 10 / High
FE 8 wear test, DIN 51819-3, D7,5/80-80. Roller wear, mg 2 2 2 2 2 2 2
Timken OK Load, ASTM D 2782, lb 65 65 65 65 65 65 65
4-Ball EP test, ASTM D 2783,              
Weld Load, kg 200 200 250 250 250 250 250
Load Wear Index, kgf 47 47 47 48 48 48 48
FZG Scuffing, Fail Stage              
A/8.3/90 12+ 12+ 12+ 12+ 12+ 12+ 12+
A/16.6/90   12+ 12+ 12+ 12+ 12+ 12+
Rust protection, ASTM D 665, Sea Water Pass Pass Pass Pass Pass Pass Pass
Copper Strip Corrosion, ASTM D 130, 3 hrs @ 100ºC 1B 1B 1B 1B 1B 1B 1B
Demulsibility, ASTM D 1401, Time to 3ml emulsion, minutes @ 82ºC 30 30 30 30 30 30 30
Foam Test, ASTM D 892, Tendency/Stability, ml/ml Sequence 1 0/0 0/0 0/0 0/0 0/0 0/0 0/0
Sequence 2 30/0 30/0 30/0 30/0 30/0 30/0 30/0


Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application, following the recommendations provided in the Material Safety Data Sheet (MSDS). MSDSs are available upon request through your sales contract office, or via the Internet on This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.

All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise.

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Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification. Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations. The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit
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