Shell Omala S2 GX 220
Mineral EP oil for enclosed gearboxes, with micro-pitting protection
ISO VG 220
| Property | Typical value | Limit | Method |
|---|---|---|---|
| Specific gravity @15°C | 0,881 | Report | ASTM D 4052 |
| Kinematic viscosity at 40°C, cSt | 220 | ±10% | ASTM D 445 |
| Kinematic viscosity at 100°C, cSt | 18,5 | ASTM D 445 | |
| Viscosity index, min | 93 | Min. 90 | ASTM D 2270 |
| Flash point, °C | 250 | ASTM D 92 | |
| Pour point, max °C | -21 | ASTM D 97 | |
| TAN, mgKOH/g | 0,16 | Report | ASTM D 664 |
| Water separability, 40/37/3 – mins | 15 | ASTM D 1401 | |
| Copper strip corrosion | 1b | Max. 1 | ASTM D 130 |
| Foam Sequence I, mL | 0/0 | 0/0 | Max. 100/10 |
| Foam Sequence II, mL | 0/0 | Max. 100/10 | ASTM D 892 |
| Foam Sequence III, mL | 0/0 | 0/0 | Max. 100/10 |
| Weld load, Kgf | 400 | ASTM D2783 | |
| Timken OK load, lbs | 70 | ASTM D2782 | |
| FZG, Stages passed *** | >12 | Min. 12 | ISO 14635-1 |
| Cincinnati Thermal Stability | Pass | Pass | CCMC Thermal B |
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PETRONAS Gear MEP 220 is an extreme-pressure industrial gear oil recommended for various types of enclosed industrial gears (spur, helical, bevel and planetary) with circulation or splash lubrication systems operating at bulk oil temperatures up to 110°C. It is suitable for gear drives subjected to heavy loads and drives sensitive to sludge formation, as well as non-gear applications such as shaft couplings and heavily loaded plain bearings operating at slow speeds. Formulated at ISO VG 220, the oil provides high load-carrying capacity, good water separability, rust and corrosion protection, foam control and thermal stability, helping to protect gear teeth and bearings while extending component life and drain intervals. Grade 220 has a kinematic viscosity of 220 cSt at 40°C and 18.5 cSt at 100°C, a viscosity index of 93, a flash point of 250°C and a pour point of -21°C. PETRONAS Gear MEP Series meets AGMA 9005-F16 AS, David Brown S1.53.101, DIN 51517 Part III, Fives Cincinnati Machine Gear, GM LS 2 EP Gear Oil, ISO 12925-1 CKC/CKD and U.S. Steel 224.
AGMA 9005-F16, antiscuff (AS) oils
The antiscuff (AS) lubricant class of AGMA 9005-F16 — the current term for what earlier editions called "EP" (extreme-pressure) enclosed gear drive oils.
David Brown S1.53.101 level — EP gear oil
David Brown's specification for extreme-pressure gear oils in open and enclosed drives under heavy and shock loading. It overlaps DIN 51517-3 CLP and U.S. Steel 224.
Industrial gear oil CLP — DIN 51517, part 3
Part 3 of the German lubricating oil standard: class CLP, gear oils with extreme-pressure additives. It requires an FZG pass plus corrosion and ageing protection.
GM lubrication standard for plant machinery
General Motors’ standard for the lubricants used in the machinery of its plants — hydraulic, gear and turbine oils. It is not a specification for vehicle oils.
Industrial gear lubricant - CKC — ISO 12925
The international standard for enclosed gear drive lubricants; class CKC is the mineral oil with antioxidant, anticorrosion and antiwear additives, for moderate duty.
Industrial gear lubricant CKD — ISO 12925
Class CKD of ISO 12925-1: a gear oil with the same additive package as CKC but greater thermal stability, for gear units running hot.
AIST 224 — EP gear oil for steel mills
The AIST (Association for Iron & Steel Technology) requirement for non-leaded EP gear oils in steel plant equipment, carried over from the former U.S. Steel 224 specification.