A braking force generation device (10; 80) for a vehicle, comprising: a rotary member (20; 82) rotating about a rotational axis along with a wheel; a friction member (22, 24; 84, 86) being supported so as not to rotate about the rotational axis; and a pressing device (26; 88) including a stationary member (34; 36; 90) and a displacement member (36, 38; 38L, 38R; 92, 94), the stationary member (34; 36; 90) being supported by a knuckle, the displacement member (36, 38; 38L, 38R; 92, 94) being operable to slide relative to the stationary member (34; 36; 90), support the friction member (22, 24; 84, 86) and press the friction member (22, 24; 84, 86) against the rotary member (20; 82), sliding portions of the stationary member (34; 36; 90) and the displacement member (36, 38; 38L, 38R; 92, 94) being lubricated by a lubricant (50; 66; 104, 112); characterized by comprising: a self-discharge type static charge eliminator (70; 120), preferably in the form of a strip, being provided on a surface of a particular member to be neutralized, the particular member being at least one of the rotary member (20; 82), the friction member (22, 24; 84, 86), the stationary member (34; 36; 90) and the displacement member (36, 38; 38L, 38R; 92, 94), wherein the self-discharge type static charge eliminator (70; 120) is an air-ion-exchange type self-discharge static charge eliminator being configured to change air around the self-discharge type static charge eliminator (70; 120) into negative air ions, according to a quantity of positive charges carried by the particular member, and eliminate charge by causing the negative air ions to attract the positive charges of the particular member for neutralization, so as to reduce a quantity of charge of the particular member, and thereby reduce a quantity of charge of the lubricant (50; 66; 104, 112). a rotary member (20; 82) rotating about a rotational axis along with a wheel; a friction member (22, 24; 84, 86) being supported so as not to rotate about the rotational axis; and a pressing device (26; 88) including a stationary member (34; 36; 90) and a displacement member (36, 38; 38L, 38R; 92, 94), the stationary member (34; 36; 90) being supported by a knuckle, the displacement member (36, 38; 38L, 38R; 92, 94) being operable to slide relative to the stationary member (34; 36; 90), support the friction member (22, 24; 84, 86) and press the friction member (22, 24; 84, 86) against the rotary member (20; 82), sliding portions of the stationary member (34; 36; 90) and the displacement member (36, 38; 38L, 38R; 92, 94) being lubricated by a lubricant (50; 66; 104, 112); characterized by comprising: a self-discharge type static charge eliminator (70; 120), preferably in the form of a strip, being provided on a surface of a particular member to be neutralized, the particular member being at least one of the rotary member (20; 82), the friction member (22, 24; 84, 86), the stationary member (34; 36; 90) and the displacement member (36, 38; 38L, 38R; 92, 94), wherein the self-discharge type static charge eliminator (70; 120) is an air-ion-exchange type self-discharge static charge eliminator being configured to change air around the self-discharge type static charge eliminator (70; 120) into negative air ions, according to a quantity of positive charges carried by the particular member, and eliminate charge by causing the negative air ions to attract the positive charges of the particular member for neutralization, so as to reduce a quantity of charge of the particular member, and thereby reduce a quantity of charge of the lubricant (50; 66; 104, 112). a self-discharge type static charge eliminator (70; 120), preferably in the form of a strip, being provided on a surface of a particular member to be neutralized, the particular member being at least one of the rotary member (20; 82), the friction member (22, 24; 84, 86), the stationary member (34; 36; 90) and the displacement member (36, 38; 38L, 38R; 92, 94), wherein the self-discharge type static charge eliminator (70; 120) is an air-ion-exchange type self-discharge static charge eliminator being configured to change air around the self-discharge type static charge eliminator (70; 120) into negative air ions, according to a quantity of positive charges carried by the particular member, and eliminate charge by causing the negative air ions to attract the positive charges of the particular member for neutralization, so as to reduce a quantity of charge of the particular member, and thereby reduce a quantity of charge of the lubricant (50; 66; 104, 112).