R911279938 is part of the MKE Servo Motors Series by Indramat Motors.
Specs
Application: Rotary main and servo drive motor Encoder Type: Optical with data memory Rated Current for Encoder: 60 Amp Maximum Current: 44.3 Amp Maximum Velocity: 4300 Volts Generated Torque: 43.5 Newton Meters Motor Inertia: 0.00430 Kg/m2 Discharge Capacity: 6.7 Microfarads Internal Battery: Yes Maximum Installation Height: 1000 meters above sea level.