Shanghai Moons' Electric Co. Ltd. (China) released its 23 HS Series of hybrid stepping motors that have a step angle of 1.8° with an accuracy of 5%. The motors have a radial play of 20 µm (maximum, 450 g load) and end play of 80 µm (maximum, 450 g load), an insulation resistance of 100 megohms (minimum), and dielectric strength of 500 Vac. Available in uni-polar and bi-polar configurations, the motors operate within the -20 °C to +50 °C temperature range, and withstand up to 80 °C.