Product Description:

The MSK070C-0300-NN-M2-UG1-RNNN is an IndraDyn S synchronous servomotor built by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. The unit functions as a precision actuator that couples to a drive controller to generate commanded torque and velocity profiles. In automated cells, packaging lines, and machine-tool axes, it converts three-phase inverter output into tightly controlled rotary motion, supporting synchronized positioning of loads, end effectors, or spindles. Its servo design also suits indexing tables and transfer mechanisms that require repeatable acceleration, stable speed regulation, and accurate stopping.

Heat produced by the windings is removed through natural convection, so no external fan or liquid circuit is required and cabinet airflow remains uncluttered. The rotor and housing are machined with increased concentricity, which lowers radial runout and eases coupling alignment. Position feedback leaves the motor on a rotatable connector that can be turned through 240°, giving flexible cable routing inside tight enclosures. Inside the connector, the digital interface EnDat2.1 transmits position data, diagnostic information, and electronic nameplate data. An optical encoder generates 2048 signal periods per revolution, letting the drive interpolate high-resolution position values for smooth servo loops. This feedback arrangement supports closed-loop motion control without the need for a separate external position sensor.

The encoder stores turns as a multi-turn absolute value, so the controller knows shaft position immediately after power-up without homing routines. For passive load holding, an electrically released brake supplies 23 Nm of static torque, preventing back-drive on vertical axes when the inverter is disabled. Frame size 070 corresponds to the stator diameter, while motor length code C sets the axial stack for the required continuous output. The electromagnetic design selected by winding code 0300 tailors the voltage constant and current rating to compatible MSK drives. A plain shaft eases integration with clamping hubs or force-fit couplings. That shaft style is suitable where torque is transmitted by frictional clamping rather than a keyway.