Electrolytic corrosion prevention member for rolling bearing and electrolytic corrosion prevention rolling bearing unit

An electrolytic corrosion prevention member for a rolling bearing, the electrolytic corrosion prevention member being mounted on a rolling bearing unit including the inner ring rotating type rolling bearing in which an outer ring is fixed to a housing and a shaft directly connected to a motor is fitted to an inner ring in order to prevent electrolytic corrosion of the rolling bearing, the electrolytic corrosion prevention member comprising:

• a spring plate including an annular portion and an elastic portion that extends continuously from an inner peripheral side end portion of the annular portion to a center of the annular portion and being formed of a plate of a conductive material;
• and
• a soft conductive member mounted on a surface of the elastic portion on a side facing the rolling bearing, the soft conductive member being softer than the spring plate,
• wherein the soft conductive member is capable of abutting against an end surface of the shaft, and
• wherein the soft conductive member is made of at least one selected from a resin-impregnated non-woven fabric, and a resin-impregnated soft porous body.