Grease composition for construction equipments
AssigneesKomatsu Ltd., Kyodo Yushi Co., Ltd.
InventorsSatoshi Okawa, Akimi Kimura, Hiroshi Kimura
Life of this patent
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Abstract
A grease composition for construction equipment comprises a lubricating grease, a) 1 to 5% by weight of phosphate glass and b) 1 to 5% by weight of a sulfur-phosphorus extreme-pressure additive; as well as c) 0.5 to 3% by weight of an aromatic sulfonic acid salt and d) 0.1 to 3% by weight of a triazole compound as optional components based on the total weight of the grease composition. The grease composition exhibits considerably high resistance to load and accordingly, can be applied to construction equipment which require high resistance to load, such as a hydrauric excavator and a wheel loader.
Claims10
A grease composition for construction equipment comprising a lubricating grease, a) 1 to 5% by weight of phosphate glass and b) 1 to 5% by weight of a sulfur-phosphorus type extreme-pressure additive based on the total weight of the grease composition.
Dependencies are inferred from the claim text.