Here are some specifications of the Siemens 1FK7042-2AF71-1DG0 servo motor:

Motor Type: Permanent Magnet Synchronous Motor (PMSM)

Frame Size: 1FK7

Motor Length: 42

Cooling: Natural convection (self-cooled)

Rated Power: This information can vary depending on specific options, but in general, the 1FK7042-2AF71-1DG0 can have a rated power output of around 0.75 kW to 1.1 kW.

Rated Speed: The motor's rated speed can vary, but it typically ranges from 2000 RPM to 6000 RPM.

Rated Torque: The rated torque also varies based on the specific configuration, but it can be approximately 2.39 Nm to 5.8 Nm.

Feedback System: The 1FK7042-2AF71-1DG0 servo motor is typically equipped with an integrated absolute encoder, providing accurate position and speed feedback.