Shaft bearing replacer based on fixed external diameter

The utility model provides a shaft bearing replacer based on fixed external diameter, including the screw ejector pin, two semicircular cylinder cutting ferrules, fixed cover, the top of screw ejectorpin is spin control spare, the upper portion of control is square, the lower part is regular hexagon, the bottom of screw ejector pin is the toper, the semicircular cylinder cutting ferrule is boss shape cavity semicircular cylinder, upper portion is the tubular boss of semicircle, the inner chamber of boss be with the supporting screw thread of screw ejector pin, when foling, two semicircular cylinder cutting ferrules constitute the screw passageway that the screw ejector pin passed, the lower part of semicircular cylinder cutting ferrule is the half slot, the top of half slot is as an organic whole with the boss, the bottom is the semicircle cutting ferrule of indent, is the internal diameter of half slot greater than the external diameter 2 of bearing 5 mm, is the internal diameter ofsemicircle cutting ferrule