Here is some information about this motor:

The 1FT4-1AF71-1NG1 servo motor is a high-performance motor designed for precision motion control applications.

It belongs to the Siemens Simotics S-1FT7 series of synchronous motors.

The motor has a frame size of 1 (100mm) and falls under the 1FT7 High Dynamic performance class of motors.

The "1AF71" portion of the model number refers to the motor's winding characteristic, voltage, and speed rating. These specifications may vary depending on the specific requirements of the application.

The "1NG1" part of the model number indicates the motor's shaft configuration, encoder type, and other mechanical features.

The motor is typically used in industrial automation systems, robotics, machine tools, and other applications where precise and controlled motion is required.