Nema17 42 Stepper Motor 17HS4023 1.0A For XYZ 3D Printer Accessories Q81COOTDTYComs: High Torque: High Steel Motor, High Torque, Low Self-Inductance, Sensitive Response, Can Avoid System Errors. Low resistance: Compared with the motor of the same thickness and torque, the double tree stepper motor can get a lower resistance value. This significantly increases the thermal conductivity of the motor. This effectively reduces the temperature rise. Wide range of applications: This small stepper motor can be used in various fields such as 3D printers; Stage lighting; Textile machinery; Medical Equipment; Placement machines; Custom equipment; automation equipment, etc. Uniform speed: the circuit board is reinforced in the motor, and the unique stator technology is adopted to ensure uniform and smooth grinding of the motor stator teeth, high precision inner hole, and stable and accurate speed during the working process without losing steps. Stable structure: the surface of the motor rotor is coated with imported epoxy resin to seal the rotor as a whole. After high temperature curing, the rotor is not easy to process residues such as iron pins in the tooth groove after processing the outer wheel. The motor will not be stable after long-term use. Risk of jamming. Specification: Material: Metal Weight: 135g Size: 42.3x42.3mm/1.66x1.66inch Type: With du-pont head line/With XH line (optional)Package Included: 1x Stepper Motor Note: 1. Please allow 1-2cm errors due to manual measurement, please make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.