MSK050B-0300-M1-UP0-NNNN Bosch Rexroth Indramat
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MPN: R911308545
The Bosch Rexroth Indramat MSK050B-0300-M1-UP0-NNNN is part of the MSK IndraDyn S Synchronous Motors series. This servomotor features a size 050 frame, B length, and a protection rating of IP65. It operates within an ambient temperature range of 0 to 40 degrees Celsius and comes with insulation class 155.
Internal Product Review
The MSK050B-0300-M1-UP0-NNNN is an IndraDyn S synchronous servomotor with IP65 protection, making it a very capable option for enclosed and washdown-prone machinery. The 0–40°C operating range and Class 155 insulation support stable thermal behavior in continuous-duty service, a strong fit for precise servo applications.
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Product Description:
Bosch Rexroth Indramat manufactures the MSK050B-0300-M1-UP0-NNNN within its MSK IndraDyn S Synchronous Motors series. As a synchronous servomotor, it converts three-phase stator currents into controlled rotor torque for indexing tables, carton formers, and multi-axis gantries in automated production lines. The compact housing connects to IndraDrive amplifiers so the motor, encoder, and power cable can operate as a matched axis package for closed-loop positioning. This arrangement supports precise control of position, speed, and torque during repetitive machine cycles.
The mechanical interface uses a 050 flange frame and a B stator length, which establish the shaft height, continuous torque capability, and overall mass. The motor uses winding pattern 0300, which provides the phase resistance and inductance values needed for the connected drive to apply a predictable current profile without disrupting its control loops. The enclosure has an IP65 rating that prevents dust ingress and protects against low-pressure water jets, allowing installation near coolant spray lines or powder feeders. Insulation class 155 permits higher sustained winding temperatures than insulation designed for a 105 °C thermal limit, supporting greater power density. The motor remains within its intended thermal range when the surrounding workspace stays between 0 and 40 °C. Radial runout limits follow the MSK mounting chart, reducing unnecessary bearing loads during operation. The stator feedback channel is calibrated to the electrical offset of the 0300 winding for proper phase alignment with the drive.
The integrated electronic nameplate transfers motor limit data to the drive, eliminating manual parameter entry and reducing setup time. In machines that use several motors, it also provides unit-specific serial and saturation data so the control system can distinguish each connected axis and monitor its operating history. The feedback and parameter functions support use as a high-precision servo axis where consistent torque linearity and smooth velocity control are required during rapid start-and-stop cycles. Proper transfer of the motor data also helps the amplifier apply suitable control values when the system is powered on. The encoder continues to provide the rotor position information needed for accurate commutation and closed-loop motion control throughout operation.
