PURPOSE: To make a space for revolution slight and to simply produce a support apparatus in relatively slight cost by supporting three supports on a frame wall revolvable centering around an axial line vertical to the frame wall.

CONSTITUTION: A bearing bush 3 is supported by three almost symmetrically arranged supports having the shape of the eccentric wheels 5 arranged in the pocket-shaped notches 5 of the frame wall 6 of a rotary press. The coaxial shaft journals 8, 9 on both sides of the supports are supported by the wall parts 10, 11 of the frame wall 6 restricting the notches 5 on the lateral side thereof. At this time, the wall parts 10 are respectively inserted in the frame wall 6 in order to ensure the assembling of the eccentric wheels 5 to be constituted as the cover segments 12 threaded with the frame wall 6. A lever 13 is fixed to the shaft journal 8 of the eccentric shaft 7 projecting outwardly from the frame wall 6. The support for replacing a sleeve 18 is reversely revolved until the opening part of the frame wall formed as a wall hole 21 having a diameter larger than that of the sleeve 18 is perfectly released.