This is an updated version nema 17 stepper motor with holding torque of 59Ncm(83.6oz.in). It's good ideal for 3D printers, as well as CNC and robotics applications. Electrical Specification: * Manufacturer Part Number: 17HS19-2004S1 * Motor Type: Bipolar Stepper * Step Angle: 1.8 deg. * Holding Torque: 59Ncm(83.6oz.in) * Rated Current/phase: 2.0A * Phase Resistance: 1.4ohms * Inductance: 3.0mH+/-20%(1KHz) Physical Specification: * Frame Size: 42 x 42mm * Body Length: 48mm * Shaft Diameter: 5mm * Shaft Length: 24mm * D-cut Length: 15mm * Number of Leads: 4 * Lead Length: 1m with connector * Weight: 390g Connection: Black(A+), Green(A-), Red(B+), Blue(B-) Warning: Make sure the motor connect to a constant current or chopper drive controller before you test motor. Connecting the motor directly to a power supply will destroy the motor. Package included: 1 Pack X Nema 17 Stepper Motor 1 Pack X Nema 17 Stepper Motor Mounting Bracket 4 PCS X 3*6mm M3 Screws

• 59Ncm(83.6oz.in) 3D printer motor with high torque to hold torque;
• NEMA 17 bipolar 1.65"x1.65"x1.85" 4-wire;
• Rated current 2.0A & resistance 1.4ohms;
• Build with 1m Cable, and 0.1" pitch Connector;
• New designed NEMA 17 Stepper Motor Alloy Steel Mounting Bracket can match standard Nema 17 stepper motor, and also include the mounting holes for Nema 17 Planetary Geared Stepper Motor.

59Ncm(83.6oz.in) 3D printer motor with high torque to hold torque;Longruner