LUBRICANT COMPOSITION FOR SPEED REDUCER AND SPEED REDUCER

The invention provides a lubricant composition for an eccentrically oscillating speed reducer of planetary gear type, which is capable of extending the life of the speed. reducer under high temperatures and keeping low input torque at low temperatures, and includes (a) a base oil containing a synthe...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SAITO Ryosuke, IMAI Junichi, WANG Hongyou, ICHIMURA Ryosuke, TANIMURA Ko, HATTORI Yasuyuki, KUMAGAI Takahide
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention provides a lubricant composition for an eccentrically oscillating speed reducer of planetary gear type, which is capable of extending the life of the speed. reducer under high temperatures and keeping low input torque at low temperatures, and includes (a) a base oil containing a synthetic oil, (b) a hydrocarbon wax, and (c) at least one calcium salt selected from the group consisting of a calcium salt of petroleum sulfonic acid, a calcium salt of alkyl aromatic sulfonic acid, a calcium salt of oxidized wax, an overbasic calcium salt of petroleum sulfonic acid, an overbasic calcium salt of alkyl aromatic sulfonic acid, and an overbasic calcium salt of oxidized wax.