MSK075E-0300-NN-M2-UG1-RNNN Bosch Rexroth Indramat
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MPN: R911321318
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The Bosch Rexroth Indramat MSK075E-0300-NN-M2-UG1-RNNN is part of the MSK IndraDyn S Synchronous Motors series and features natural convection cooling along with a plain shaft. This synchronous servomotor comes with an optical multiturn absolute encoder using EnDat2.1 with 2048 signal periods, and a rotatable 240 degree encoder connector. The motor is equipped with an electrically-released holding brake rated at 23 Nm and has an IP65 protection rating.
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Product Description:
The MSK075E-0300-NN-M2-UG1-RNNN is an IndraDyn S synchronous servo motor engineered by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. It delivers closed-loop torque and speed control for automated axes in machine tools, printing presses, and material-handling stations. An integrated optical feedback unit and an electrically released holding brake let the motor maintain precise position during production cycles and hold the load when power is removed. The mechanical design emphasizes increased concentricity to reduce runout and vibration, allowing direct coupling to precision gear stages.
Cooling is provided by natural convection, so heat leaves the housing through surface radiation and ambient airflow without external blowers. The enclosure carries an IP65 rating, which blocks dust ingress and water jets when the motor is correctly sealed at the shaft and connector. Position data moves to the drive over the EnDat2.1 serial interface, allowing automatic electronic nameplate reading and high-speed feedback exchange. Inside the encoder, an optical scale delivers 2048 signal periods per revolution, giving the controller fine angular resolution. The windings use insulation class 155, which supports continuous operation at elevated copper temperatures without degrading the insulation system.
The electrically released brake supplies 23 Nm of static torque, so vertical axes remain locked when the servo is de-energized. Reliable service is maintained within an ambient range of 0–40 °C, which matches typical control cabinet climates. A plain shaft simplifies coupling because no keyway machining is required, and the motor’s encoder operates in multi-turn absolute mode, storing position across multiple revolutions without battery support. The feedback connector can rotate 240° for flexible cable routing, and the 075 frame with E length stack fits the motor’s mechanical envelope. Winding code 0300 corresponds to phase resistance and inductance values used by compatible IndraDrive units.
Frequently Asked Questions about MSK075E-0300-NN-M2-UG1-RNNN:
Q: How is the MSK075E-0300-NN-M2-UG1-RNNN servo motor cooled?
A: The MSK075E-0300-NN-M2-UG1-RNNN motor uses natural convection cooling and does not require an external fan.
Q: What type of encoder is used in the MSK075E-0300-NN-M2-UG1-RNNN motor?
A: This model features a multiturn absolute optical encoder with an EnDat2.1 interface.
Q: What type of holding brake is included on the MSK075E-0300-NN-M2-UG1-RNNN motor?
A: The MSK075E-0300-NN-M2-UG1-RNNN comes with a holding brake that is electrically released and provides 23 Nm torque.
Q: What is the protection rating of the MSK075E-0300-NN-M2-UG1-RNNN servomotor?
A: This motor is rated IP65, making it dust tight and resistant to water jets.
Q: What is the operating temperature range for the MSK075E-0300-NN-M2-UG1-RNNN?
A: The MSK075E-0300-NN-M2-UG1-RNNN motor supports an ambient temperature range of 0 to 40°C.
