Product Description: The DCM50xxx/57xxx series motors are permanent magnet DC brush servo motors. The motors are ideal for cost sensitive applications. They include an attached encoder which provides position feedback to controllers. Features: High performance (Smooth operation, High precision and Low noise) Low cost Small disturbance Encoder optional (1000 line or 500 line), Positional error can be eliminated to one pulse Mounting dimensions of DCM57xxx brush servo motors are the same as those of NEMA frame size 23 motors. Typical Applications: Engraving machines, Cutting machines, Jet-ink machines Experimental installations and Instructional machines Measuring devices, such as Imager, Analytic Instruments, etc. Electronic packaging equipments and Loading and unloading devices Medical instruments Electrical Specifications: Continuous Torque (Max)Nm:353.1×10-3 Peak Torque (Stall)Nm:2.9 No-load Speedrpm:3600±10% Rated Speedrpm:2900 Rotor Inertiakg m2:4.73×10-5 Maximum Winding TemperatureoC:155 Thermal ImpedanceoC/watt:4.98 Motor Weight Plus encoderg:1338 Motor Length Plus encodermm:196±2 Rated VoltageV:30.3 Rated CurrentA:3.94 Torque ConstantNm/A:89.7×10-3 ResistanceOhm:0.93 No-Load CurrentA:0.6 Peak Current (Stall)A:32.6 Encoder SpecificationLines/rev:500/1000 See its datasheet for more information, and you can download the datasheet from the website of Leadshine.