Feature: 1. The motor wire is made of pure copper enameled wire, which is made by winding process. 2. The steel is arranged uniformly, the temperature rise of the motor is lower, and there will be no deformation and noise in long‑term transportation. 3. Using silicon steel bearing material, strong and durable, has a long service life. 4. The surface is coated with imported rotor glue, and the textile silicon steel is oxidized to reduce burrs after grinding. 5. Compared with the same period in the industry, the motor torsion is larger, the output is more stable and the noise is lower. Specification: Item Type: 42 Stepper Motor Drive SetNumber of Phases: 2 Rated Voltage: DC3.6V Phase Resistance (20℃): 2.4 x (1±15%) π/phase Keep Torsion: ≥420mN. m Steering (looking at Shaft Extension): A-AB-B-CW Maximum No-Load Operating Frequency: ≥1900 PPS Electric Strength: AC600V/1mA/1S Moment of Inertia: 57.3g. cm² Step Angle: 1.8°±0.09° Rated Current: DC 1.5 A/phase Phase Inductance (1KHz): 3.7×(1±20%) mH/phase Positioning Torsion: 15 mN.m REF. Maximum No-Load Starting Frequency: ≥1500 PPS Insulation Resistance: 100 M2π (DC 500V) Insulation Class: Class BSize: Approx. 23.5mm / 0.9in18mm / 0.7in 2mm / 0.1in4.5mm / 0.2in 22mm / 0.9in 9.4mm / 0.4in42.3mm / 1.7in 31mm / 1.2in 16.2mm / 0.6in . Package List: 1 x Motor 1 x Drive1 x Line