MSK101D-0300-NN-M1-RP2-NNNN

MSK IndraDyn S Synchronous Motors

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MSK101D-0300-NN-M1-RP2-NNNN is a size 101 servomotor with a 70 Nm electrically released holding brake. Made by Bosch Rexroth Indramat for the MSK IndraDyn S series, it has an optical Hiperface encoder with 128 signal periods. It uses natural convection cooling and delivers up to 160 Nm maximum torque.

Technical Specifications

Cooling
Natural convection

Power Connector
Right-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
70 Nm

Constraint
Requires Cooling FN

Design
Standard

Product Type
IndraDyn S Synchronous Servomotor

Shaft Type
Shaft with keyway

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

With natural convection cooling, what mounting considerations affect continuous torque?

Mount the motor to a rigid, thermally conductive surface and allow free airflow around fins; inadequate heat sinking reduces continuous ratings. If duty cycle demands more cooling margin, the MSK101 accepts retrofit axial or radial fan units

Does the right-side power connector impact cabinet or cable routing?

Yes, plan motor orientation so the right-side exit avoids tight bends and keeps motor power separate from feedback to reduce EMC coupling. The MSK101 type code includes “R” for right-side connection to help specify this at design time.

What does the “shaft with keyway” imply for coupling and vibration?

A keyed shaft eases timing-critical couplings and simplifies torque transmission but requires proper key fit and full-key balancing to minimize runout. The MSK family supports keyed shafts per DIN 6885-1 and is balanced accordingly.

How should I interpret the “0300” winding code when pairing a drive and bus voltage?

Winding code selects back-EMF and current constants, affecting base speed and current demand at your DC bus (e.g., Rexroth data tables reference values at ~750 V). Match winding to the motion profile so the drive current limits and bus voltage headroom meet peak and continuous needs

What are best practices for inertia matching with a Size-101 rotor on high-throughput axes?

Keep reflected load inertia near the motor’s rotor inertia (often within 1:1 to 5:1 depending on servo bandwidth), and use coupling/compliance to damp resonances. Verify with your drive’s autotune and notch filters, then validate by step-response and frequency-response tests.

Common Misspellings

Internal Product Review

The IndraDyn S Synchronous Servomotor MSK101D-0300-NN-M1-RP2-NNNN by Bosch Rexroth has a multiturn absolute optical encoder with Hiperface interface and 128 signal periods. It provides a maximum torque of 160 Nm and includes a 70 Nm electrically-released holding brake. This motor is suitable for applications in robotics, CNC machines, packaging, and printing industries.