GREASE COMPOSITION, AND ROLLER BEARING
To provide a grease composition capable of making a member such as a roller bearing have lower torque and a longer life.SOLUTION: The grease composition comprises base oil, a urea-based thickener. an oxidation inhibitor, a nitrogen-containing cyclic compound, and a phosphate based additive, with the...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a grease composition capable of making a member such as a roller bearing have lower torque and a longer life.SOLUTION: The grease composition comprises base oil, a urea-based thickener. an oxidation inhibitor, a nitrogen-containing cyclic compound, and a phosphate based additive, with the phosphate based additive not being a metal salt, and the content of a metal-containing substance in the grease composition being 1.0 mass% or less.SELECTED DRAWING: Figure 1
【課題】転がり軸受等の部材の低トルク化かつ長寿命化を実現可能なグリース組成物を提供すること。【解決手段】基油と、ウレア系増ちょう剤と、酸化防止剤と、含窒素環状化合物と、リン酸エステル系添加剤とを含むグリース組成物であって、リン酸エステル系添加剤が金属塩ではなく、グリース組成物中における金属含有物質の含有量が1.0質量%以下である、グリース組成物。【選択図】図1 |
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