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R911322703 (MSK071C-0300-NN-M1-UG2-NNNN)

MSK IndraDyn S Synchronous Motors

  In-Stock, Ships 3-5 Days
Expedited Lead Times on Select Parts
1 Year Warranty Included
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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping
The Bosch Rexroth R911322703 (MSK071C-0300-NN-M1-UG2-NNNN) is an IndraDyn S synchronous servomotor designed for industrial automation tasks. It features a standard sealed enclosure with IP65 protection, allowing use in environments with ambient temperatures from 0 to 40°C. The motor uses natural convection for cooling and includes a rotatable (240°) encoder connector. The optical multiturn absolute encoder, with 128 signal periods and Hiperface interface, supports precise control. Key specifications include a plain main shaft, flange size of 140 mm, centering diameter of 130 mm, housing length 272 mm, and thermal class 155. The holding brake delivers 30 Nm torque and the unit weighs 15.8 kg. Electrical ratings include a continuous current at standstill (100 K) of 8.5 A, continuous torque at standstill (100 K) of 14.0 Nm, maximum current of 32.9 A, maximum torque of 44.0 Nm, winding inductivity of 10,900 mH, and maximum speed of 5000 RPM.

Technical Specifications

Product Type
Synchronous Servo Motor

Housing
Sealed

Protection Rating
IP65

Cooling Method
Convection

Ambient Temperature Range
0 to 40 degrees Celsius

Encoder Rating
128 signal periods

Encoder Support
Hiperface protocol

Holding Brake Type
Electrically releasing

Holding Torque Rating
30 Nm

Housing Design
Standard

Maximum Speed
5000 RPM

Weight
15.8 kilograms

Thermal Class
155

Housing Length
272 millimeters

Centering Diameter
130 millimeters

Mounting
Flange

Flange Size
140 millimeters

What encoder system is used on MSK071C-0300-NN-M1-UG2-NNNN, and why does it matter for commissioning accuracy?

It employs an optical multiturn absolute encoder with a Hiperface interface and 128 signal periods, enabling immediate absolute position on power-up and repeatable homing-free starts. This reduces cycle-time losses and simplifies safety-related referencing in multi-axis cells.

How does the electrically-released 30 Nm holding brake on MSK071C-0300-NN-M1-UG2-NNNN support vertical-axis safety and downtime recovery?

The brake provides static torque for load-holding during emergency stops or drive disable, limiting back-drive risk on Z-axes. Electrically-released architecture integrates cleanly with IndraDrive controllers for managed clamping during controlled stops and power restoration.

How does the rotatable (≈240°) encoder connector aid serviceability on MSK071C-0300-NN-M1-UG2-NNNN?

The swivel range lets technicians clock the flange connection away from cable trays or guarding, easing strain-relief and reducing bend-radius stress. It also speeds replacement in crowded gantries by aligning plugs without re-routing harnesses.

Why is a plain-shaft configuration advantageous for precision feed modules using this code variant (0300 rated speed)?

Plain shafts accept standard couplings with low torsional wind-up, supporting smooth speed regulation at the 0300 code’s operating regime. This minimizes harmonic excitation on high-resolution encoders and helps maintain contour accuracy in multi-axis interpolation.

What are the key electrical limits—continuous and peak—of MSK071C-0300-NN-M1-UG2-NNNN, and how do they influence drive sizing?

It delivers nearly 14 Nm continuous torque from 8.5 A and 44 Nm at 32.9 A peak. It guides IndraDrive current ratings, DC-bus utilization and thermal modeling for duty-cycle-heavy axes.

MSK071C0300NNM1UG2NNNN

MSK071C 0300 NN M1 UG2 NNNN

MSK-071C-0300-NN-M1-UG2-NNNN

MSK71C-0300-NN-M1-UG2-NNNN

Internal Product Review

Bosch Rexroth Indramat designs MSK071C-0300-NN-M1-UG2-NNNN motor in a 071-frame size and C length. It comes with a 30 Nm electrically-released brake system and a plain shaft design. It uses optical multiturn feedback system that supports precise positioning. This motor relies on convection cooling and possess a rotatable 240° encoder connector for simplified integration in packaging/food, printing and metal forming.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MSK071C-0300-NN-M1-UG2-NNNN.
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