MSK101D-0300-NN-M1-BG3-NNNN
MSK IndraDyn S Synchronous Motors
The Bosch Rexroth Indramat MSK101D-0300-NN-M1-BG3-NNNN from the MSK IndraDyn S Synchronous Motors series is a precision-engineered IndraDyn S Synchronous Servomotor designed for demanding automation tasks. This standard design features a motor size 101 frame with a motor length D configuration, optimized for compact installations. It delivers a continuous torque at standstill of 57.0 Nm when cooled by natural convection and draws a continuous current of 34.9 A at 100 K. Peak capabilities include a maximum torque of 160.0 Nm and a maximum current of 137.7 A, providing dynamic response and sustained performance under varying loads.
The motor integrates advanced optical encoder technology with a multiturn absolute turn type, communicating via the Hiperface encoder interface and achieving an encoder resolution of 128 signal periods. A robust plain shaft ensures precise mechanical coupling, while the B-Side power connector simplifies electrical integration into existing drive systems. With a Rated Speed Code 0300, this servomotor achieves 3 000 rpm nominal speed, balancing high acceleration with low thermal drift. The combination of high winding inductivity (3,200 mH) and efficient airflow allows continuous operation without forced cooling.
Designed for streamlined integration, the MSK101D includes an electrically released holding brake delivering 120 Nm of holding torque for safe holding and quick stops. Its sturdy construction and standardized mounting interfaces make it compatible with a wide range of servo drives, and the passive cooling scheme reduces maintenance requirements. Whether deployed in packaging machines, robotics, or indexing tables, the MSK101D-0300-NN-M1-BG3-NNNN ensures reliable, high-torque performance across industrial automation applications.
Technical Specifications
Cooling
Natural convection
Power Connector
B-Side
Encoder Technology
Optical
Encoder Turn Type
Multiturn Absolute
Encoder Interface
Hiperface
Encoder Resolution
128 signal periods
Motor Length
D
Motor Size
101
Holding Brake
With holding brake, electrically-released
Holding Brake Torque
120 Nm
Design
Standard
Product Type
IndraDyn S Synchronous Servomotor
Shaft Type
Plain shaft
Rated Speed Code
0300
Continuous Current at Standstill 100 K
34.9 A
Continuous Torque at Standstill 100 K
57.0 Nm
Maximum Current
137.7 A
Maximum Torque
160.0 Nm
Winding Inductivity
3,200 mH
Frequently Asked Questions
What mechanical alignment tolerances are critical when coupling to a plain shaft?
Axial and radial misalignment must be kept within tight bounds (typically a few 0.01 mm) to avoid bearing loads and vibration—use precision coupling or flexible spider couplings. Also, ensure shaft runout is minimised to preserve encoder accuracy and life of connected components.
How does the holding brake (120 Nm) affect start-up and stopping behavior?
The brake must be electrically released before motion and engaged only after the motor is fully stationary; failure to do so can cause excessive torque on the drive or mechanical stress. The brake adds inertia and must be considered when sizing deceleration ramps to avoid skidding or overshoot.
Given a peak torque of 160 Nm, what duty cycle can it sustain without thermal overload?
The motor can deliver peak torque only in short bursts (e.g., during acceleration), but sustained operation near peak will heat the windings. The continuous rating of 57 Nm (at standstill) gives a guideline—long periods above that require cooling margins or reduced duty cycles.
What considerations are there for EMC and cable length given the B-Side power connector interface?
Long power and encoder cables may pick up noise; use shielded twisted pairs and keep cable impedance low to avoid voltage drop and feedback errors. Also, follow Rexroth’s recommended cable lengths and filters to maintain signal integrity, especially over distances beyond a few tens of meters.
How does the 3,000 rpm nominal speed (Rated Speed Code 0300) affect gearing and load matching?
That nominal speed forms the basis for dimensioning gearboxes and transmission ratios; if your load demands higher speed, you’ll lose torque margin. Conversely, for low-speed high-torque loads, gear reduction must not push the motor into mechanical resonance or overheating zones.
Common Misspellings
MSK101D0300NNM1BG3NNNN
MSK101D 0300 NN M1 BG3 NNNN
MSK-101D-0300-NN-M1-BG3-NNNN
Internal Product Review
The Bosch Rexroth MSK101D-0300-NN-M1-BG3-NNNN servomotor is built for demanding automation tasks in packaging, robotics, and indexing systems. It delivers 57.0 Nm continuous torque (naturally cooled), 160.0 Nm peak torque, and operates at 3000 rpm with a multiturn Hiperface encoder. Its 120 Nm holding brake and plain shaft support accurate positioning and secure holding.
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Repair
We offer a repair service for the MSK101D-0300-NN-M1-BG3-NNNN.
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