Patent ID: 8317405

Claim:
A rolling bearing comprising: a first raceway member that has a first raceway surface and a first rib located on one side of the first raceway surface in an axial direction; a second raceway member that has a first raceway surface and a first rib located on one side of the first raceway surface of the second raceway member in the axial direction, wherein the first rib of the second raceway member is located opposite to the first rib of the first raceway member in the axial direction; and a first rolling element that is arranged between the first raceway surface of the first raceway member and the first raceway surface of the second raceway member, wherein each first rib has a first guide face over which the first rolling element slides, and each first guide face has a constant sloped gradient that approaches a perpendicular bisector plane of the first raceway surface of the first raceway member as the constant sloped gradient moves outward in a radial direction in a cross section of the first raceway member taken in the axial direction or each first guide face has a constant sloped gradient that is spaced away from the perpendicular bisector plane of the first raceway surface of the first raceway member as the constant sloped gradient moves outward in the radial direction in the cross section of the first raceway member taken in the axial direction, and a first sliding contact portion of the first rolling element, which is in sliding contact with the first guide face of the first rib of the first raceway member and a second sliding contact portion of the first rolling element, which is in sliding contact with the first guide face of the first rib of the second raceway member, wherein the first sliding contact portion and the second sliding contact portion of the first rolling element are located on the same side in the radial direction with respect to an orbital annular plane of the first rolling element.