Electrically-conductive lubricant

A lubricant composition which comprises a bicyclic liquid crystal compound and a tricyclic liquid crystal compound, wherein the bicyclic liquid crystal compound consists essentially of at least one kind of a bicyclic liquid crystal compound represented by the following formula (1), and the tricyclic liquid crystal compound consists essentially of at least one kind of a tricyclic liquid crystal compound represented by the following formula (2), and at least one kind of a tricyclic liquid crystal compound represented by the following formula (3),

• wherein,
• R1 and R2 are the same or different from each other, and each is a group —OCH2CH2CH(R′)CH2CH2OR, wherein R is a linear or branched CnH2n+1, 1≤n≤20, and R′ is methyl or ethyl,
• wherein,
• R11 and R21 are the same or different from each other, and each is a group —OR, wherein R is a linear or branched CnH2n+1, and 1≤n≤20,
• R12, R13, R22 and R23 are the same or different from each other, and each is hydrogen or a group —OR, wherein R is a linear or branched CnH2n+1, and 1≤n≤20,
• wherein,
• R31 and R41 are the same or different from each other, and each is a group —OCH2CH2CH(R′)CH2CH2OR, wherein R is a linear or branched CnH2n+1, 1≤n≤20, and R′ is methyl or ethyl,
• R32, R33, R42, and R43 are the same or different from each other, and each is hydrogen or a group —OCH2CH2CH(R′)CH2CH2OR, wherein R is a linear or branched CnH2n+1, 1≤n≤20, and R′ is methyl or ethyl.