Performance, Features & Benefits

• Long oil life through oxidation stability and resistance to thermal stress – leading to reduced total cost of ownership

Shell Omala S2 GX oils are formulated to reduce the risk of thermal and chemical breakdown throughout the 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 100°C.

• Excellent wear and micropitting protection

Shell Omala S2 GX is formulated to have excellent load carrying capacity and micropitting performance, providing long component life.

• Gear system efficiency is maintained by optimized water separation performance, corrosion and foam control

Shell Omala S2 GX oils display a combination of excellent water shedding capability, corrosion protection and low foam forming tendency.

Water can greatly accelerate surface fatigue of gears and bearings as well as promoting ferrous corrosion on internal surfaces. Excellent corrosion protection is provided, even in
the presence of contamination by seawater and solids.

The oils are designed to minimize the potential for foaming, often experienced in applications where oil reservoir residence times are marginal.

Excellent shear stability, maintains viscosity stability throughout the service interval.

Further system efficiencies are gained through compatibility with popular seals, sealants, and engineering adhesives, to help avoid leakage. Shell Omala S2 GX is compatible with prevalent paint finishes.

Main Applications

• Enclosed industrial gear systems

Shell Omala S2 GX technology provides an effective extreme pressure (EP) formulation designed specifically for enclosed industrial gearboxes using steel-on-steel, spur, helical, or planetary gear drives, including highly loaded systems with splash or forced circulation systems.

Shell Omala S2 GX oils are also suitable for the lubrication of non-geared applications, that include bearings and other steel-on-steel components with splash or forced circulation systems.

•  Other applications

Shell offers a wide range of products for other gear applications that have their own specific requirements.

• Shell Omala S4 GXV is recommended for gear systems where a synthetic lubricant is specified, when the longest lifespan is required, or when operating in environments that experience large temperature variations.
• Shell Omala S5 Wind 320 is recommended for wind turbine main gear drives.
• Shell Omala S4 WE, Shell Morlina S4 B and Shell Omala S1 W are recommended for worm-wheel drives.
• For automotive gear applications, the appropriate Shell Spirax Oil should be used.
• For geared systems, or other applications that employ a filtration unit finer than 5 microns, please consult your Shell Local Technical Advisor and Product Application Specialist before using Shell Omala S2 GX.

Specifications, Approvals & Recommendations

Meets requirements of:

•  ISO 12925-1 Type CKD (ISO 150)
•  ISO 12925-1 Type CKC (ISO 150)
• DIN 51517- Part 3 CLP (ISO 150)
• AGMA EP 9005- F16 (ISO 150)
• AIST (US Steel) 224 (ISO 150)
• Fives Cincinnati: P-77 (ISO 150)

Approved or Recommended by:

• Siemens AG

Shell Omala S2 GX 150 is approved by Siemens AG for use in Flender, helical, bevel, planetary and marine gear units.

For a full listing of equipment approvals and recommendations, please consult your local Shell Technical Help Desk.