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R911333548 (MSK071C-0300-NN-M1-BG0-NNAN)

MSK IndraDyn S Synchronous Motors

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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping
The Bosch Rexroth synchronous servomotor R911333548 (MSK071C-0300-NN-M1-BG0-NNAN) is a 071 size, naturally air-cooled IndraDyn S unit with a plain shaft and optical multiturn absolute encoder using a Hiperface interface with 128 signal periods. Designed for operation at ambient temperatures up to 55°C, the motor complies with DIN EN 60721-3-3 and achieves IP65 protection. Electrical connections are made with circular connectors on the B-side, and encoder orientation is adjustable at the flange. The servomotor operates at a continuous standstill current of 8.5 A (100 K), continuous standstill torque of 14.0 Nm (100 K), maximum current of 32.9 A, and maximum torque of 44.0 Nm, with a winding inductivity of 10,900 mH. The model does not include a holding brake and requires installation and connection in a de-energized state, considering increased load factors if operating conditions are exceeded. Housing corrosion protection is required in harsh environments.

Technical Specifications

Size Code
071

Operation
Must have securely locked or tightened connectors

Grounding
By motor cable

Protection Phase
Must be protected against corrosion

Housing Temperature
Can reach very high when overloaded

Housing
Not leakproof

Listing
UL Listed and CSA Certified

Maximum Temperature
55°C with derated data

Manufacturing Tolerance
+/- %

Power and Encoder Electrical Connections
Circular connectors

Flange Socket Orientation
adjustable

Temperature Change Rate
0.5°C/min according to DIN EN 60721-3-3

IP Protection
IP 65

Availability
Worldwide

What encoder system is used and how does it aid commissioning accuracy?

The MSK071C-0300-NN-M1-BG0-NNAN uses an optical multiturn absolute encoder with a Hiperface interface and 128 signal periods for delivering absolute position on power-up and fine interpolation for smooth low-speed control. It reduces homing cycles, shortens setup time and enhances repeatability in multi-axis cells.

How does natural-convection cooling impact duty planning and enclosure design for MSK071C-0300-NN-M1-BG0-NNAN?

The passive thermal dissipation avoids fan maintenance and simplifies sealed cabinet layouts while still supporting the specified 14.0 Nm continuous standstill torque. Engineers must provide conduction paths and ambient airflow clearances to maintain winding temperatures within the 100 K rise rating.

Why is a B-side power connector advantageous in retrofits and tight machine bays?

The B-side routing keeps cabling parallel to machine frames for easing strain-relief and minimizing bend radii conflicts with guarding. Its orientation often improves EMC separation from feedback lines during upgrades where space and cable trays are constrained.

How does the 14.0 Nm continuous standstill torque of MSK071C-0300-NN-M1-BG0-NNAN help tension-critical lines?

The high holding torque at zero speed stabilizes web tension and press registration without mechanical brakes. It enables responsive torque loops for creep moves during threading and splice sequences in packaging and printing.

What are the integration implications of the plain shaft on MSK071C-0300-NN-M1-BG0-NNAN?

Its plain shaft simplifies coupling alignment and reduces backlash variability in precision bellows or elastomer couplers. It also eases compliance tuning for resonance management on lighter gantries and pick-and-place axes.

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MSK71C-0300-NN-M1-BG0-NNAN

Internal Product Review

The servo motor MSK071C-0300-NN-M1-BG0-NNAN from Bosch integrates natural-convection cooling method. It comes with an attached optical absolute encoder that offers 128 signal periods for motion control. This motor delivers a specified peak torque of 44.0 Nm to suit precise axis duties and possesses a B-side power connection along with a plain shaft for simplifying retrofit in industrial systems.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MSK071C-0300-NN-M1-BG0-NNAN.
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