PURPOSE: To prevent slide plates provided underneath an automotive body frame and on a roller stand from irregularly wearing by guiding gears provided at both ends of rollers via a rack provided on the roller stand to prohibit turning motion of the rollers via a plurality of rollers.

CONSTITUTION: A plurality of rollers 15 provided on gears 14 provided at both ends and having the same diameter of pitch circle as that of the rollers 15 are engaged in mesh with a rack 17 provided on a roller stand 16, and are thus guided thereby. A wear resisting slide plate 13 is provided underneath the lower surface of an automotive body frame and on the upper surface of the roller stand 16 for the rollers 15 to roll on both the lower surface of the frame and the upper surface of the stand 16. Since the rollers 15 rolls between the body frame and the roller stand 16, they do not turn. As a plurality of the rollers 15 are, in addition, provided to reduce their surface pressure, the roller means can be reduced in size and simplified in structure to thereby prolong the life of the slide plate.