R911337635 (MSK071C-0302-NN-S1-UG0-NNNN)

MSK IndraDyn S Synchronous Motors

MSK071C-0302-NN-S1-UG0-NNNN Series Image

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The R911337635 (MSK071C-0302-NN-S1-UG0-NNNN) is a Bosch Rexroth MSK071C synchronous servomotor engineered for applications requiring precise control and high torque density. It operates with a maximum torque of 44.0 Nm and a continuous torque at standstill (100 K) of 14.0 Nm, supported by a continuous standstill current of 8.5 A and a maximum current of 32.9 A. The motor features natural convection cooling, a plain output shaft, and a seawater- and acid-resistant black varnish finish. The optical singleturn Hiperface encoder provides 128 signal periods, facilitating accurate rotor position and velocity detection, via a 240° rotatable connector. Designed for use at altitudes up to 1000 meters and ambient temperatures ranging from -20°C to +80°C (operating: 0°C to 40°C), it has a noise emission of 75 dB and an IP65 protection class. The unit does not include a holding brake and has a winding inductivity of 10,900 mH. Use is intended for qualified personnel.

Technical Specifications

Operational Altitude
Up to 1000 metres above sea level

Temperature Range
-20 to +80 degrees Celsius

Peak Torque
High

Peak Current
Low

Classification
Servo Motor

Operational Temperature
0 to 40 ℃

Noise Level
75 decibels

Cooling Method
Natural Convection

Encoder Type
Optical

Coating Thickness
Less than 40 micrometers

Electrical Plug Rotation
240 degrees

Holding Brake
None

IP and Insulation Rating
IP65 and 155

Recommended Operator
Highly skilled technician

Stocked By
Wake industrial.

Frequently Asked Questions

How does the 10,900 mH winding inductivity of the MSK071C-0302-NN-S1-UG0-NNNN influence current control and torque ripple in closed-loop operation?

The higher inductivity filters phase current to reduce ripple and smoothes electromagnetic torque, so the controller can run tighter velocity and position loops. It also mitigates switching harmonics for improving thermal behavior at low speed and enhancing standstill stability.

What does an optical singleturn Hiperface encoder with 128 signal periods contribute to the MSK071C-0302-NN-S1-UG0-NNNN’s positioning accuracy and servo stiffness?

Its each sine/cosine period multiplies via interpolation to very fine angular resolution for yielding precise commutation and crisp servo response. Its Hiperface protocol carries analog tracks plus digital data for calibration and diagnostics to improve commissioning consistency and fault detection capabilities.

Why is natural convection cooling appropriate for the MSK071C-0302-NN-S1-UG0-NNNN, and when would you reconsider thermal strategy?

The convection eliminates fans and coolant circuits to enable quiet, maintenance-free operation at the specified continuous torque. If duty cycle elevates RMS current or ambient temperature, consider design derating, heat sinking or selecting a forced-ventilated variant to maintain winding temperature margins.

How does the plain shaft design on MSK071C-0302-NN-S1-UG0-NNNN affect mechanical integration and torsional compliance in couplings?

Its plain shaft simplifies hub-and-key or clamp-style coupling choices and keeps rotor runout predictable. Its low-backlash, torsionally stiff couplings maintains bandwidth. Adding compliance or elastomer elements can attenuate resonance when the load has flexible transmissions.

What is the purpose of the rotatable 240° encoder connector on MSK071C-0302-NN-S1-UG0-NNNN during installation?

The swivel connector lets installers orient the plug to clear cable trays, doors or moving axes without stressing harnesses. Its improved strain relief and bend-radius management reduce intermittent encoder faults and maintain EMC performance in dynamic cable carriers.

Common Misspellings

Internal Product Review

The Bosch Rexroth Indramat’s MSK071C-0302-NN-S1-UG0-NNNN servomotor targets accurate positioning and speed regulation through its optical singleturn Hiperface of 128 periods. It provides 14.0 Nm standstill torque, 44.0 Nm peak and utilizes a normal current of 8.5 A as well as 32.9 A of full load currents. This motor includes a plain shaft and lacks any holding brake assembly. It is widely applicable in machine tools, printing/packaging, woodworking and automotive assembly.

1620 Old Apex Road
Cary, NC 27513, USA

Toll Free: 1-888-551-3082
International: 1-919-443-0207

Fax: 1-919-867-6204

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North Carolina Office

Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

Phone

Toll Free: 1-888-551-3082
International: 1-919-443-0207

Indramat USA sells factory new and pre-owned surplus products and maintains channels to procure supply. Indramat USA is not affiliated with nor an authorized distributor or representative of any manufacturers, brands or products listed. Designated trademarks, brand names, and brands appearing herein are the property of their respective owners.