MSK071E-0300-NN-S1-UG0-NSNN Bosch Rexroth Indramat
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MPN: R911344479
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The Bosch Rexroth Indramat MSK071E-0300-NN-S1-UG0-NSNN is part of the MSK IndraDyn S Synchronous Motors series and is a synchronous servomotor with a size 071 and length E. It features a plain shaft, natural convection cooling, and an optical singleturn Hiperface encoder with a rotatable 240° connector. The design covers both standard and explosion protection, and the motor is supplied without a holding brake.
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Product Description:
The MSK071E-0300-NN-S1-UG0-NSNN synchronous servo motor is produced by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. As a drive component, it converts regulated three-phase energy into precise rotary motion for indexing tables, pick-and-place axes, and light machining spindles. It is commonly used where accurate speed regulation and repeatable positioning are required in compact production equipment. Its role in automation loops is to provide stable torque and position feedback to the motion controller so commanded profiles can be followed accurately during repeated starts, stops, and speed changes.
The motor uses frame size 071, which provides a 70 mm class mounting interface for compact machine modules. This frame keeps the installation footprint compact while fitting small machine layouts with limited space around the motor. The axial extension code E indicates a longer stator stack that increases continuous power without increasing the diameter. Winding code 0300 sets the coil arrangement and voltage constant that must match the associated inverter. Heat is removed by natural convection, so the housing needs open airflow when duty cycles increase. A plain shaft allows direct clamping of low-runout couplings without keyway backlash, which supports smooth torque transfer in precision axes.
The motor is suitable for standard and explosion-protected applications when it is paired with certified drive electronics. Service wiring is simplified by a rotatable 240° feedback connector that can be turned to avoid obstacles and maintain proper cable bend radius in tight machine spaces. Position data is transmitted through the Hiperface protocol, and the optical single-turn encoder provides 128 signal periods over one mechanical revolution for closed-loop control. Because the unit is supplied without a holding brake, drive torque or external clamping must hold the load during power-off stops. This arrangement suits axes that do not require a built-in brake for stationary load holding.
Frequently Asked Questions about MSK071E-0300-NN-S1-UG0-NSNN:
Q: What cooling method does the MSK071E-0300-NN-S1-UG0-NSNN motor use?
A: This motor is cooled by natural convection and does not require an external airflow or fan.
Q: Does the MSK071E-0300-NN-S1-UG0-NSNN feature a holding brake?
A: The MSK071E-0300-NN-S1-UG0-NSNN does not come equipped with a holding brake.
Q: What is the shaft type of the MSK071E-0300-NN-S1-UG0-NSNN motor?
A: A plain shaft is used, which allows for direct coupling to machinery without a keyway.
Q: What type of encoder and resolution are used in the MSK071E-0300-NN-S1-UG0-NSNN?
A: This motor features an optical encoder with a singleturn function and 128 signal periods resolution.
Q: What is the range of rotation for the encoder connector on the MSK071E-0300-NN-S1-UG0-NSNN?
A: The encoder connector on this model is rotatable up to 240°, aiding installation in tight spaces.
