PURPOSE: To prevent slip out of a rubber bushing by forming a flange by means of folding back the end of an outer cylinder while holding a bracket inserted into the outer cylinder of a rubber bushing from both sides.
CONSTITUTION: The space between an outer cylinder 1 and an inner cylinder 2 is bridged with a rubber elastic body 3 and upper and lower through-holes 4, 5 are provided therein. A flange 8, 8, which is a fold-back of the outer cylinder end, forces a bracket 6 to be inserted, by which the relatively lateral movement of the bracket 6 and a rubber bushing is mutually hindered. That is, the flange 8, 8 is formed by folding back both ends 9, 9 of the outer cylinder 1 toward the outside (arrow direction) in a manner of holding both sides 7, 7, of the bracket 6, after fitting the bracket 6 practically in the center of the outer cylinder 1 whose width W1 is formed larger than the width W2 of the bracket 6 beforehand.