R911329540 is part of the MSK Synchronous Motors Series by Indramat Motors.
Specs
Product Name: Bosch Rexroth High Torque Synchronous Motor Type: High Torque Synchronous Motor Construction: Mechanically Stable, Compact Features: Low Rotor Inertia, High Torque Density Performance: High Speed and Position Control Precision Operating Overtemperature: 60k, 100k