1326AB-B420E-21伺服电机由艾伦-布拉德利/罗克韦尔自动化公司制造，是一款中等惯性无刷伺服电机。该电机属于艾伦-布拉德利1326AB伺服电机系列，它使用380至460伏交流输入电源，框架直径为108毫米或螺栓中心直径为115毫米。该伺服电机的磁体组长度为20，电机额定转速在380伏交流输入电压下为2500转/分，在460伏交流输入电压下为3000转/分。它的额定扭矩为5.0牛·米或44磅/英寸，峰值扭矩为14.9牛·米或132磅/英寸，额定功率为1.1千瓦。1326AB-B420E-21伺服电机的系统连续失速电流也为2.84安培。此外，1326AB-B420E-21伺服电机配有一个带键的IEC公制法兰。

整个1326AB伺服电机系列以及Allen-Bradley 1326AB-B420E-21伺服电机都是三相无刷伺服电机，具有高性能。这些电机旨在帮助满足严格的伺服系统应用需求。1326AB伺服电机系列兼容并可与1391交流伺服控制器一起使用。这些电机的一些主要功能包括增强伺服响应的转子、支持直接传热的三相正弦绕组定子磁场以及增强平稳运行的功能。当与轴封一起使用时，电机的防护等级为IP 65，可以承受恶劣的环境。它们也是防尘的，它们可以承受脉动喷水并防止任何液体进入电机内部。其他功能包括提供经济高效性能的铁氧体磁体和标准规格连接器。

Manufactured by Allen-Bradley/Rockwell Automation, the 1326AB-B420E-21 servo motor is a medium inertia brushless servo motor. The motor belongs to the Allen-Bradley 1326AB servo motor series and it uses 380 to 460 Volts AC input power with a 108-millimeter diameter frame or 115-millimeter bolt center diameter. This servo motor has a magnet stack length of 20, with a motor rated speed of 2500 RPM at 380 Volts AC input voltage and 3000 RPM at 460 Volts AC input voltage. It also has a rated torque of 5.0 N-m or 44 pounds on an inch, a peak torque of 14.9 N-m or 132 pounds on an inch, and a power rating of 1.1 kilowatts. The 1326AB-B420E-21 servo motor also has a system continuous stall current of 2.84 Amps. Additionally, the 1326AB-B420E-21 servo motor has an IEC metric flange with a key.

The entire 1326AB servo motor series, as well as the Allen-Bradley 1326AB-B420E-21 servo motors, are 3-phase brushless servo motors that offer high performance. These motors are designed to help meet strict servo system application needs. The 1326AB servo motors series are compatible and can be used with the 1391 AC servo controllers. Some of the main features of these motors include a permanent rotor to enhance the servo response, a 3-phase sinusoidal wound stator field that enables the direct transfer of heat and it also enhances smooth operations. When used with a shaft seal, the motors are IP 65 rated, allowing them to withstａnd harsh environments. They are also dust-tight and they can tolerate pulsating water sprays and prevent any liquids from entering inside the motor. Other features include ferrite magnets that provide cost-effective performance and standard MIL-spec connectors.