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R911344821 (MSK101C-0300-NN-M2-BP2-RNNN)

MSK IndraDyn S Synchronous Motors

  In-Stock, Ships 3-5 Days
Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping
Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping
The R911344821 (MSK101C-0300-NN-M2-BP2-RNNN) is a synchronous servomotor from the IndraDyn S series, featuring a keyway output shaft per DIN 6885-1 and natural convection cooling. It is equipped with an optical multiturn absolute encoder based on EnDat2.1, providing 2048 signal periods, and has increased concentricity design. The servomotor supports a holding brake with 70 Nm torque, which is electrically released and functions only when the motor is idle. Electrical characteristics include a continuous standstill current of 21.3 A and continuous torque of 36.5 Nm at 100 K, with maximum values of 84.2 A for current and 110.0 Nm for torque. Winding inductivity is rated at 6,000 mH. During operation, surface temperatures can reach up to 155°C. The motor must be used with components matched to its technical configuration, and only approved accessories and parts should be utilized according to relevant directives. Disconnecting the motor under load may generate ignition sparks.

Technical Specifications

Output Shaft Type
Smooth Keyway

Output Shaft Standard
DIN 6885-1

Temperature Change Rate
0.5°C/min

Encoder Type
Optical

Holding Brake
Included

Operation
Trained Personnel Only

Accessories Standard
Comply with 2014/34/EU directives

Cable Ends Fastening
Mechanical using Cable Clamps

Shipment
Global

Ignition Sparks Protections
Yes

Voltage
Based on Cable Length and Conductor Resistance

Surface
May Have Dust Layer

Operating Part Temperature
Up to 155°C in Normal Operation

Holding Brake Application
Only at Motor Standstill.

What positioning benefits does the optical multiturn EnDat 2.1 encoder provide on MSK101C-0300-NN-M2-BP2-RNNN?

The encoder supplies absolute multi-revolution feedback with 2048 signal periods for ensuring precise homing-free startup and high repeatability. Its EnDat also supports rich diagnostics and parameter data exchange for reliable integration with modern drives.

How does natural-convection cooling (FN) influence continuous and peak torque behavior?

The motor safely dissipates heat to sustain 36.5 Nm continuous torque at standstill and reach 110 Nm peak without forced air or liquid circuits. Its thermal limits and mounting conditions still govern duty cycles and permissible load profiles.

Why is a 70 Nm electrically released holding brake useful on MSK101C-0300-NN-M2-BP2-RNNN?

It holds axes against gravity or external disturbance when power is removed for improving machine safety and start-position stability. Its electrical release simplifies controlled engagement/disengagement during servo enable and emergency-stop sequences in vertical or indexer applications.

How does the shaft-with-keyway interface aid torque transmission on MSK101C-0300-NN-M2-BP2-RNNN?

The keyed shaft provides positive mechanical indexing and slip-free torque transfer to pulleys, couplings or gearboxes. It simplifies timing alignment for multi-axis machines while maintaining serviceable assembly and repeatable repositioning.

What’s the role of winding inductivity (≈6,000 mH) in control performance of MSK101C-0300-NN-M2-BP2-RNNN?

The higher phase inductance filters current ripple and eases current-loop tuning with PWM inverters. It also influences dynamic response, while controller bandwidth and voltage headroom must be matched to achieve commanded torque rise times.

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Internal Product Review

Bosch Rexroth produces the IndraDyn series motor MSK101C-0300-NN-M2-BP2-RNNN with an integrated optical multiturn EnDat 2.1 encoder of 2048 periods for precise motion and speed dectection. It comes in a size-101, length-C mechanics and uses natural-convection design. This motor yields 110 Nm peak and 36.5 Nm stall torque. It possesses a 70 Nm brake and B-side power connection. Its keyed shaft aids integration in robotics, packaging and conveyor positioning systems.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MSK101C-0300-NN-M2-BP2-RNNN.
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