Industrial Gear Oils
Shell Omala S2 GX oils are high quality extreme-pressure oils designed primarily for the lubrication of heavy duty
industrial gears. Their high load carrying capacity and anti-friction characteristics combine to offer superior
performance in gears.
Performance, Features & Benefits
Shell Omala S2 GX oils offers:
Excellent micropitting performance to help prolong
component life.
Performance Benefits can be summarised in OMALA. COM (Protection against Contamination, Oxidation andMicropitting)
Low sludge tendency, which reduces wear on rollers and helps ensure bearing protection.

Handling Contamination and hence maintaining system
efficiency Outstanding corrosion protection, protecting steel
components, even in the presence of contamination by water
and solids.
Shell Omala S2 GX oils display a combination of excellent water shedding capability and low foaming tendency. The
oils are designed to minimize the potential for foaming in the most testing of environments.

Shell Omala S2 GX oils offers excellent shear stability by maintaining its viscosity, thereby protecting the component from friction and wear.
Shell Omala S2 GX oils have excellent water separation properties, such that excess water can be drained easily
from lubrication systems to help extend the life of the gears and ensure efficient lubrication of the contact areas.
Main Applications

Enclosed industrial gear systems
Shell Omala S2 GX technology provides an extreme EP system which allows trouble-free application in most
enclosed industrial gearboxes using steel spur and helical gear drives with circulation or splash lubrication systems.
Water can greatly accelerate surface fatigue of gears and bearings as well as promoting ferrous corrosion on internal surfaces. Water contamination should therefore be avoided or removed as quickly as possible after the
occurrence.

Highly loaded gears

Long oil life through Oxidation stability – leading to
maintenance saving Shell Omala S2 GX oils have an effective full extreme
pressure (EP) additive system allowing them to be used in
highly-loaded gear systems.
Shell Omala S2 GX oils are formulated to reduce the risk of thermal and chemical breakdown throughout the
Other applications Shell Omala S2 GX oils are suitable for lubrication of bearings and other components in circulating and splash-lubricated systems. For loaded worm drives Shell Omala S4
WE, Shell Morlina S4 B and Shell Omala S1 W are recommended. For automotive hypoid gears, the appropriate
Shell Spirax Oil should be used.
maintenance interval. They withstand high thermal loading and resist the formation of sludge to provide extended oil life capability, even with bulk oil temperatures of up to
1000C in certain applications.
Excellent wear & corrosion protection incl. protection against Micro-pitting
Shell do not recommend/support use in systems with fine filtration (<10 microns) because sustained foam control performance is not assured. Please consult your Shell Local Technical Advisor and Product Application Specialist. Shell Omala S2 GX oils have superb load carrying capacity that helps reduce gear tooth and bearing wear on steel components.   Specifications, Approvals & Recommendations Siemens AGM Shell Omala S2 GX 150, 220, 320, 460 and 680 are approved by Siemens AG for use in Flender gearboxes. ISO 12925-1 Type CKD (ISO 68 through 460) ISO 12925-1 Type CKC (ISO 680, 1000) DIN 51517- Part 3 CLP (ISO 68 through 1000) AGMA EP 9005- EO2 (ISO 68 through 1000) AIST (US Steel) 224 (ISO 68 through 680) For a full listing of equipment approvals and recommendations, please consult your local Shell Technical Help Desk. Compatibility & Miscibility Shell Omala S2 GX oils are compatible with various seal materials to help prevent premature failure of seals and thus avoid leakage.