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A. Shell Gadus S2 OG 50 is designed for open-gear drives (cement kilns, ball mills, sugar mills) and wire-rope lubrication, supplied in the heavier consistency for applications requiring higher tack and adhesion.
A. Yes, Shell Gadus S2 OG 50 was previously named Shell Malleus Grease GL 205.
A. Shell Gadus S2 OG 50 is tested to ASTM D2596 (extreme-pressure load-wear); ASTM D2266 (four-ball wear); ASTM D2509 (Timken OK load); ASTM D4048 (copper corrosion); ASTM D1743 (rust prevention); and ASTM D3233 (Falex EP).
A. Open gears operate at low speed with the gear teeth partially exposed. A standard bearing grease would fling off the slow-moving teeth. Open-gear greases such as Shell Gadus S2 OG 50 are formulated with high tack and adhesion to stay on the gear teeth during operation and provide a continuous lubricant film.
A. Both are Shell Gadus S2 OG open-gear and wire-rope greases with the same ASTM test profile. OG 40 (formerly Malleus GL 95) is the lighter-consistency variant. OG 50 (this product, formerly Malleus GL 205) is the heavier-consistency variant for applications requiring higher tack and adhesion.
A. Yes, the product is dual-positioned for open-gear and wire-rope service. The high tack and EP additive system provide both corrosion protection inside the rope strand interior and wear protection at gear-tooth contact.
A. NLGI is the universal grease consistency standard every reputable grease meets, ranging from NLGI 000 (semi-fluid) to NLGI 3 (firm). It is your baseline check — match the grade your handbook specifies (e.g., NLGI 2 for most multi-purpose applications) and the grease is technically suitable for your machine. Every grease on our site lists its NLGI grade.
A. An OEM Specification is the grease requirement set by a vehicle or equipment manufacturer (e.g., MB 267.0, MAN 283 Li-P 2). When a grease lists the code, the grease manufacturer has developed and tested it to meet the criteria the equipment manufacturer requires. Match the code in your handbook and you have a grease engineered for your machine.
A. An OEM Approval means the grease has been formally tested and signed off by the equipment manufacturer and listed on their official approved-products register (e.g., MB-Approval 267.0). An Approval confirms the grease is recognised by the equipment manufacturer for service use in their machines.
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