Synchronous Electric Motor TYD-50 110V AC 50-60RPM CW CCW 4W Torque 0.4Kg.cm Working Voltage: AC 110-120V Shaft Length: 0.61";Shaft Diameter: 0.27" Screw Thread on the Shaft: M4 Speed: 50-60RPM;CW/CCW (UNCONTROLLABLE) GuaranteeAny quanlity problem,we guarantee 100% unconditional refund or resend service.