R911307899 is part of the MHD Synchronous Motors Series by Indramat Motors.
Voltage Constant: 154.5 V/1000min-1 Torque Constant: 1.7 Nm/A at 20°C Power Connection: Left Side Output Shaft: Plain with Sealing Ring Continuous Torque (Natural Cooling): 48Nm at 60 K Continuous Current: 31.6 A at 60 K Weight: 56 kg Winding Resistance: 0.35 Ohms Winding Inductivity: 5.65 mH Max Speed: 3000 RPM Max Torque: 187 Nm Protection Class: IP68 Insulation Class: F Rated Current (Surface Cooling): 27.6 A Rated Torque (Surface Cooling): 59.2 Nm Thermal Time Constant: 40 or 90 depending on Cooling Method.