Sliding member and rolling bearing

A sliding member comprising:

• a sheet;
• a metal ring;
• and
• a rubber, wherein
• the sheet is made of conductive fibers, is fixed in contact with a first member made of a steel material, and is in slidable contact with a second member made of a steel material,
• the metal ring includes a first circumferential surface disposed to be oriented to a first radial side and extending in an axial direction, and a second circumferential surface disposed to be oriented to a second radial side and extending in the axial direction,
• the rubber includes at least a second rubber portion out of:
• a first rubber portion fixed to the first circumferential surface;
• and
• the second rubber portion fixed to the second circumferential surface,
• the sheet includes a sheet portion fixed to the second rubber portion,
• a first surface on the first radial side is the first circumferential surface or a surface of the first rubber portion on the first radial side,
• a second surface on the second radial side is a surface of the second rubber portion on the second radial side and/or a surface of the sheet portion on the second radial side,
• a first thickness is a thickness from the first circumferential surface to the first surface,
• a second thickness is a thickness from the second circumferential surface to the second surface,
• the second thickness is larger than the first thickness,
• the metal ring is disposed at a spacing from the sheet on a first axial side, and
• the rubber includes a portion disposed in the spacing.

A sliding member comprising:

• a sheet;
• a metal ring;
• and
• a rubber, wherein
• the sheet is made of conductive fibers, is fixed in contact with a first member made of a steel material, and is in slidable contact with a second member made of a steel material,
• the metal ring includes a first circumferential surface disposed to be oriented to a first radial side and extending in an axial direction, and a second circumferential surface disposed to be oriented to a second radial side and extending in the axial direction,
• the rubber includes at least a second rubber portion and a plurality of third rubber portions out of:
• a plurality of first rubber portions fixed to the first circumferential surface and disposed at spacings in a circumferential direction;
• the second rubber portion fixed to the second circumferential surface;
• and
• the third rubber portions each fixed to the first circumferential surface between the circumferentially adjacent first rubber portions,
• the sheet includes a sheet portion fixed to the second rubber portion,
• a first surface on the first radial side is the first circumferential surface or a surface of each of the first rubber portions on the first radial side,
• a second surface on the second radial side is a surface of the second rubber portion on the second radial side and/or a surface of the sheet portion on the second radial side,
• a third surface on the first radial side is a surface of each of the third rubber portions on the first radial side,
• a first thickness is a thickness from the first circumferential surface to the first surface,
• a second thickness is a thickness from the second circumferential surface to the second surface,
• a third thickness is a thickness from the first circumferential surface to the third surface,
• the second thickness is larger than the first thickness, and
• the third thickness is larger than the first thickness.