■57mmHB系列三相步进电机u步距角(StepAngle)1.2°u步距精度(StepAccuracy)&plu***n;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))