Abstract: A sliding component includes a pair of seal rings which are arranged to rotate relative to each other. The seal rings have sliding surfaces, respectively, which are facing each other. The sliding surfaces are provided with: a land continuously extending in a circumferential direction; inward recessed portions recessed in an axial direction, extending to a radially inner side, and open to the radially inner side; and outward recessed portions recessed in the axial direction, extending to a radially outer side, and open to the radially outer side.

Abstract: Provided is sliding components capable of stably obtaining a low-friction effect even in a non-lubricated environment. Sliding components and have sliding surfaces and performing relative sliding. A carbon film in which a polymer structure is dispersed is formed on the sliding surface of the sliding component. The proportion of the polymer structure dispersed in the carbon film is such that an extinction coefficient of 0.2 or less and a refractive index of 1.5 to 2.0 are satisfied in a wavelength range of 550 nm of spectroscopic ellipsometry.

Abstract: Provided are a sliding film that has desired surface roughness and surface shape and contains a hard carbon material as a main component, a method of producing the sliding film, a sliding member, and a method of producing the sliding member. A diamond film has a smooth transfer surface. The transfer surface is a sliding surface. A sliding member includes an adhesive layer for bonding the diamond film on a base. The deposited diamond film is removed from a substrate. The transfer surface on the side of the substrate of the diamond film is set as the sliding surface. A deposited surface opposite to the transfer surface is attached and fixed onto the base via the adhesive.