■57mmHB系列两相步进电机u步距精度(StepAccuracy)±5%u温升(TemperatureRise)75℃Maxu环境温度(AmbientTemperatureRange)-20℃~+50℃u绝缘等级(InsulationClass)Bu绝缘电阻(InsulationResistance)500VDC100MΩMinu绝缘强度(DielectricStrength)500VAC50Hz1MaMinuteu径向跳动(radialrunout)0.02mmMax(450g负载)u轴向间隙(axialclearance)0.08mmMax(450g负载)u适配驱动器（Matcheddriver）YKA404/YK3525/YKB2B技术参数(Specifications)型号Model步距角StepAngle(O)机身长LengthL(mm)额定电流Current(A/phase)相电阻Resistance(Ω/phase)相电感Inductance(mH/phase)保持转矩Holdingtorque(N.m)转动惯量Rotorinertia(g.cm2)重量Weight(kg)轴径Shaftdiameter(mm)轴伸Axisstretch(mm)57HB41-1541.8411.51.840.41200.456.3521.0057HB51-1061.8511.06.68.20.722750.656.3521.0057HB56-2061.8562.01.82.50.93000.76.3521.0057HB67-2061.8672.01.731.03600.826.3521.0057HB76-3061.8763.011.61.354801<pclass="MsoNormal"align="center"style="text-align:cent)