R911388857 (MSK075E-0450-NN-M2-UG1-RNNN)

Name: R911388857 (MSK075E-0450-NN-M2-UG1-RNNN)
Brand: Indramat Motors
SKU: MSK075E-0450-NN-M2-UG1-RNNN
Price: 482.00 USD
Availability: InStock

MSK IndraDyn S Synchronous Motors

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Phone:
1-888-551-3082

Email:
sales@indramat-usa.com

The Bosch Rexroth R911388857 (MSK075E-0450-NN-M2-UG1-RNNN) is an IndraDyn S synchronous servomotor designed for high dynamic performance, typically applied in metal-forming machine tools. It features a plain shaft, shaft sealing ring, and increased concentricity. The integrated optical encoder employs EnDat2.1 interface with 2048 signal periods resolution, multiturn absolute, and supports a maximum speed of 12,000 min⁻¹. Continuous current at standstill (100 K) is 15.6 A, continuous torque at standstill is 23.0 Nm, and maximum torque is 88.0 Nm with a maximum current of 63.9 A. The winding inductivity is 4,460 mH, and cooling is achieved through natural convection. The motor includes an electrically-released holding brake with a torque of 23 Nm, requiring a 24V ±10% supply. The encoder connector is rotatable up to 240°. ATEX explosion protection classification applies and strict adherence to safety and connection standards is required during installation and operation. Cooling periods should be five times the thermal time constant.

Technical Specifications

Frame Length
E

Type
Synchronous Servomotor

Use
Metal-forming machine tools

Maximum Temperature Constraint
High

Constructional Modifications
Not Allowed

Safety Instructions Compliance
Mandatory

Operation Conditions Limit
Maximum permissible must not be exceeded

Power Supply Connection During Repair/Service
Not Allowed

Required Cooling Time
Approximately five times its thermal constant

Hot Surface Handling
Gloves required

Crushing and Jamming Prevention
Mandatory

Explosion Protection Classification
ATEX

Spark Ignition on Connector Dis/Connection
Possible

Leakage Current Over Housing
Occurs if grounding connector has no connection

Operation without Fan
Not Allowed

Voltage Supply for Holding Brake
24V +/-10%

Overloading Risks
Errors in electrical or mechanical equipment

Holding Brake Connection Time and Disconnection Time
Present

Motor Encoder Maximum Speed
12,000min-1

Shaft
Standard smooth shaft with shaft sealing ring

Temperature Change
0.5°C/min during operation phase

Packaging
Rugged.

Frequently Asked Questions

Why is the E-length motor configuration suitable for compact automation systems?

Its shorter body fits well inside compact equipment frames. Space-saving dimensions help designers integrate the motor without sacrificing performance or access clearance.

Why is an optical encoder suitable for high-precision industrial control?

The optical sensor reads rotor position using reflected light. Its non-contact detection provides reliable accuracy and reduces wear compared to mechanical feedback systems.

How does the MSK075E-0450-NN-M2-UG1-RNNN reduce vibration during fast cycles?

The concentric construction minimizes uneven loading during rotation. Reduced vibration keeps machine components aligned and lowers noise during continuous production runs.

Why is the combination of EnDat2.1 and 2048-period feedback effective in robotics?

High-resolution digital feedback gives precise joint movement data. Robots maintain coordinated motion and improved accuracy in repetitive pick-and-place or tool positioning tasks.

How does a 2048 signal-period encoder improve motion control resolution?

The high count detects compacter position changes in each rotation. Fine resolution allows smoother acceleration and precise positioning for detailed automation tasks.

Common Misspellings

MSK075E0450NNM2UG1RNNN

MSK075E 0450 NN M2 UG1 RNNN

MSK-075E-0450-NN-M2-UG1-RNNN

MSK75E-0450-NN-M2-UG1-RNNN

Internal Product Review

The MSK075E-0450-NN-M2-UG1-RNNN synchronous motor by Bosch Rexroth Indramat uses natural convection cooling and a multiturn EnDat2.1 encoder. The 23 Nm brake secures load during stops. Its 240° connector simplifies setup. The motor supports precise speed control in industrial automation and synchronized motion systems.