Grease composition and rolling apparatus
AssigneeNsk Ltd.
InventorsShinya Nakatani, Hirotoshi Miyazima, Michita Hokao
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Abstract
A grease composition with a thickener of a calcium sulfonate complex and a second thickener component in a base oil. The second thickener component may be, for instance, polyurea, a metallic soap, a complex metallic soap or an N-substituted terephthalamic acid metal salt. Alternatively, a grease composition with a thickener of an N-substituted terephthalamic acid metal salt and a second thickener component in a base oil. Furthermore, a grease composition with a thickener component of polyurea and complex metallic soap in an ester oil. Still further, a grease composition with a thickener of polyurea and a complex metallic soap in a base oil.
Claims20
A grease composition comprising a base oil and a thickener which contains a calcium sulfonate complex and a second thickener component, wherein said calcium sulfonate complex comprises calcium sulfonate and calcium carbonate as essential components, and further comprises two or more compounds selected from the group consisting of calcium dibehenate, calcium distearate, calcium dihydroxystearate, calcium borate and calcium acetate.
A grease composition comprising a base oil and a thickener which contains an N-substituted terephthalamic acid metal salt and a second thickener component, wherein said second thickener component is a metallic soap.
Dependencies are inferred from the claim text.