MSK101C-0300-NN-M1-BG2-NNNN

MSK IndraDyn S Synchronous Motors

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The MSK101C-0300-NN-M1-BG2-NNNN servomotor by Bosch Rexroth Indramat is part of the MSK IndraDyn S Synchronous Motors series. It features natural convection cooling, a B-Side power connector, a multiturn absolute encoder with 128 signal periods, and a plain shaft. The motor delivers a continuous torque at standstill of 48.0 Nm, a maximum torque of 110.0 Nm, and a torque constant of 1.88 Nm/A. This standard design requires Cooling FN.

Technical Specifications

Cooling
Natural convection

Power Connector
B-Side

Encoder Turn Type
Multiturn Absolute

Encoder Resolution
128 signal periods

Motor Length
C

Motor Size
101

Constraint
Requires Cooling FN

Design
Standard

Product Type
IndraDyn S Synchronous Servomotor

Shaft Type
Plain shaft

Rated Speed Code
0300

Continuous torque at standstill 60 K
32.0 Nm

Continuous current at standstill 60 K
18.7 A

Maximum torque
110.0 Nm

Torque constant at 20 ?C
1.88 Nm/A

Continuous torque at standstill
48.0 Nm

Frequently Asked Questions

What installation advantages does the BG2 B-side power connector give on MSK101C-0300-NN-M1-BG2-NNNN?

Its BG2 orients the power connector toward side B for aligning cable egress with machine cable trays and easing bend-radius compliance in crowded enclosures. It also segregates power from feedback harnessing for improving EMC and simplifying service.

How should the 1.88 Nm/A torque constant influence drive sizing and current-loop tuning for the 0300 winding?

Its every ampere of phase current yields ~1.88 Nm, so current limits, field-weakening thresholds and thermal models should be set accordingly. Its drive selection with peak current margin is important to achieve the specified 110 Nm without saturation or thermal derating in the intended duty.

For MSK101C-0300-NN-M1-BG2-NNNN, what’s the implication of 48 Nm continuous versus 32 Nm at 60 K?

The 48 Nm figure corresponds to operation at a higher permissible temperature rise (or enhanced cooling) for allowing more sustained torque. It 32 Nm at 60 K is a conservative thermal point.

Why specify a plain shaft here, and when would keyed or splined variants in the MSK series be preferable?

The plain shafts pair with clamping hubs to minimize runout and torsional play, which benefits precision contouring axes. Its keyed or splined shafts is chosen when transmitting intermittent shock loads or for compatibility with existing couplings in retrofit machinery.

What clearance and cleanliness practices sustain NN cooling on MSK101C-0300-NN-M1-BG2-NNNN during operation?

It is important to maintain vertical convection space around the housing and keep fins free of debris to preserve thermal models and prevent nuisance temperature warnings.

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Internal Product Review

The Bosch Rexroth’s MSK101C-0300-NN-M1-BG2-NNNN motor integrates natural convection and possess B-side power connector. It has a plain design of shaft and uses multiturn absolute encoder of 128 signal periods for feedback. It offers 1.88 Nm/A torque constant and supports 48 Nm continuous torque. Its applications span in packaging, printing, machine tools, robotics and metal forming systems.