BEARING STRUCTURE FOR STEPPING MOTOR

摘要

PROBLEM TO BE SOLVED: To provide an inexpensive bearing structure capable of supporting a screw shaft without using any steel balls. SOLUTION: A bearing structure includes a stepping motor 1, a screw shaft 1b provided integrally with the stepping motor and a bearing member 2 made of a forming resin material for supporting the tip part 1d of the screw shaft 1b, a conical recessed part 1e is formed in the tip 1d of the screw shaft 1b and a semispherical projecting part 2d in contact with the recessed part 1e is formed in the bearing member 2.