R911257811 is part of the 1MB High-Speed Asynchronus Motors Series by Indramat Motors.
Motor Type: 1MB frameless motor Rotor Fit: Friction-locked interference fit Rated Voltage: 220 V Moment of Inertia: 0.041 kgm2 Weight: 15 kg Internal Diameter: 66 mm Operating Temperature Range: 5–45 degrees Celsius Insulation Category: F Rated Current: 50 Amps Balancing Ring Included: Yes Pre-heating Temperature for Fitting: 200°C Mounting Dimension A Length: 80 mm Shipping Availability: Global