Abstract: A shaft capturing device useful for reconditioning worn roller conveyor side frame openings has a shape tapered to narrow in its depth dimension from a base portion toward a flange portion. An opening in the flange portion is sized to receive a roller conveyor shaft. Amounting opening located in the base portion accepts a mounting screw that when tightened pushes against and engages the roller conveyor side frame causing the base portion to move away from the side frame and the opening in the flange portion to close in size to tighten around the received shaft. As an enhancement, a slot may be included passing through the flange portion shaft receiving opening to define a pair of clamping tangs. An opening extending through the tangs accepts a screw that when tightened pulls the tangs together to clamp the flange portion around the received shaft. The mounting screw may then be tightened to further tighten the shaft and engage the roller conveyor side frame.