57bygh Stepper Motor 4 Lead Bipolar 2 Phase 56mm 3A NEMA 23 CNC 3D Printer Engraving Machine

Step angle accuracy: 1.8°±5%
Resistance precision: ±10%
Inductance precision: ±20%
Temperature: 100°
Storage environment temperature: -20°~+70°
Ambient temperature: -40°~+50°
Radial runout: 0.05mm Max
Pressure resistance: 500V AC Iminute
Number of elicited lines: 4-Wire
Phase:2
Step angle(±5%)(full step): 1.8°(1±5%)
Voltage: 1.86V
Current: 3A
Resistance(20ºC)(±10%): 0.62Ω
Inductance(0.3V, 1kHz)(±20%): 2.3mH
Holding torque(2 phases on): ≥1N·m
Pull in frequency(half step): ≥2000pps
Pull out frequency(half step): ≥2500pps
Insulation resisstance(DC500V)(MΩ):>100
Dielectric strength(AC600V, 1s, 3mA): No arc breakdown
Temperature rise: ≤80k
Noise level: ≤55dB
Insulation class:B

It is made of international imported silicon steel materials, bearings and imported German technology. The surface is coated with rotor rubber to prevent the oxidation of silicon steel to reduce the surface burrs after grinding. Compared with the industry, the torque of the motor is larger, the output is more stable, the noise is lower, and the life is longer.

The motor coil is made of pure copper enameled wire and advanced winding and over-wire technology. The copper wire is evenly distributed, the motor temperature rises lower, and the deformation and noise problems will not occur for a long time.