A large-diameter, lightweight, excellent-durability ground surface slide guide fixed to a lawn mower in order to perform mowing work comfortably. The ground surface slide guide comprises a resin body of synthetic resin, and a metallic hub coupled to rotate integrally with the resin body. The resin body is constituted of a tubular body and a flange extending upward externally from the entire periphery at the lower end of the tubular body to cover the lower surface of a rotary blade. A retaining ring being pressed against the lower surface of the rotary blade is formed on the outer circumferential part of the hub and exposed to the upper end face of the tubular body. The hub is fixed to a drive shaft by means of a fastener and the rotary blad...
