COMPONENT OF ROTATING MECHANISM MADE OF HOLLOW RESIN AND METHOD FOR HOLLOW MOLDING

摘要

PROBLEM TO BE SOLVED: To provide a component of a rotating mechanism made of a hollow resin having good dimensional accuracy of a product and in which a dust or the like is not introduced into a hollow part from an exterior and a method for molding the same. SOLUTION: The method for molding the component of the rotating mechanism made of the hollow resin having an axial hole comprises the step of injection a pressurized fluid from a nozzle 16 provided at least one core 11 for forming the axial hole 3 in the resin in a mold cavity.