Mini-type motor/general motor/walking motor/principal axial motor/rectifier Material: S45、SUS300、SUS42J2 Surface roughness tolerance: Ry0.4 Screw tolerance: Grade 6 Coaxial tolerance: 0.005mm Surface treatment: Nickel plate, high frequency treatment Material: Bakelite powder (Panasonic cn4404),non-oxygen argentiferous copper (hitach) Model : RS-385,RS-550,RS-555,RS-750,RS-755,Engine parts Techinical parameter: Coaxial tolerance:0.02mm Sheet axial compression resistance1500V/1min,sheet compression resistance:250V/2s