Abstract: The present invention relates to a rolling roller. A conventional rolling roller has had problems that a phenomenon is produced in which a rolling ring is slipped from a shaft upon rolling, and excessive axial pressure is produced upon fixing the rolling ring to the shaft by utilizing an adjusting screw whereby a unreasonable tensile force is applied and therefore a fatigue and damage of the shaft is increased fast. However, the present invention is made such that a large torque can be obtained without slipping operation by coupling a first and second spacers 23,24 and a rolling rings 20,25 which are formed with a projected slant surface a and an inclined groove b, and a unreasonable tensile force is not applied to the shaft due to that so that a fatigue and damage of the shaft can be prevented.