R911314849 (MSK076C-0300-NN-M1-UG0-NNNN)

MSK IndraDyn S Synchronous Motors

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The R911314849 (MSK076C-0300-NN-M1-UG0-NNNN) is a Rexroth Indramat synchronous servomotor designed for precision automation. This unit features natural convection cooling, operates with a plain shaft, and utilizes optical encoder technology with 128 signal periods and a rotatable 240° connector. Continuous torque is 12 Nm at 60K and 13.5 Nm at 100K overtemperature, with maximum torque reaching 43.5 Nm. Peak current is specified at 32.4 A, and continuous currents are 7.2 A (60K) and 8.1 A (100K). The winding inductance is 12.6 mH, and the winding resistance is 1.85 Ohms at 20°C. The motor’s rotor inertia without the holding brake is 0.0043 kg·m². It operates within an ambient temperature of 0 to 40°C, supports a maximum speed of 4700 min⁻¹, a thermal time constant of 60 minutes, and maintains a sound pressure level below 75 dB(A).

Technical Specifications

Product Type
Synchronous Motors

Cooling Overtemperature
70K and 100K

60K Overtemperature Continuous Torque
12 Nm

60K Overtemperature Continuous Current
7.2 Amps

100K Overtemperature Continuous Current
8.1 Amps

100K Overtemperature Continuous Torque
13.5 Nm

Maximum Torque
43.5 Nm

Maximum Current
32.4 Amps

Winding Resistance at 20°C
1.85 Ohms

Constant Voltage
113V/min-1

Torque Constant
1.84Nm/A

Recommended Ambient Temperature
0°C to 40°C

Winding Inductivity
12.6 mH

Leakage Capacitance
6.5 nH

Rotor Moment of Inertia (with brakes)
0.0043

Pole Pairs Required
4

Thermal Time Constant
60 minutes

Maximum Permissible Speed
4700min-1

Degree of Protection
IP65

Sound Pressure Level
less than 75 dB(A)

Inertia Brake
Optional

Frequently Asked Questions

What advantages does the multiturn absolute encoder (128 signal periods) provide on the MSK076C-0300-NN-M1-UG0-NNNN during commissioning and after power interruptions?

Its absolute feedback retains position across cycles to eliminate homing and reduces recovery time. Its 128 signal periods supports fine interpolation for smooth motion and better quantization margins during high-resolution contouring.

How does the 240° rotatable connector on MSK076C-0300-NN-M1-UG0-NNNN aid machine layout and EMC practices?

It permits optimal cable exit to meet bend-radius limits to avoid pinch points and separate power from feedback. Its cleaner routing reduces common-mode coupling and enables correct shield terminationsfor improving EMC performance.

How should the 1.84 Nm/A torque constant and 12.6 mH winding inductance of MSK076C-0300-NN-M1-UG0-NNNN guide drive sizing and control tuning?

The torque constant sets required current for target torque for informing amplifier current rating and cabling. Its inductance influences current-loop bandwidth and PWM ripple, while the drives with sufficient voltage headroom achieve faster dynamic regulation.

What does the IP65 rating imply for MSK076-series deployment, and which sectors commonly specify these motors?

The IP65 indicates dust-tight construction and resistance to water jets when connectors are properly mated. Its typical uses include automotive assembly, packaging, manufacturing cells and woodworking equipment within modern factory automation.

How do 12 Nm continuous (60 K overtemperature) and 43.5 Nm maximum torque translate to pick-and-place or indexing profiles on MSK076C-0300-NN-M1-UG0-NNNN?

The continuous torque sets sustainable RMS load, while maximum torque covers brief accelerations and disturbances. Its profile should keep thermal RMS under 12 Nm while exploiting 43.5 Nm momentarily for acceleration and settling.

Common Misspellings

Internal Product Review

Bosch Rexroth Indramat designs the servo motor MSK076C-0300-NN-M1-UG0-NNNN that uses natural-convection cooling and its housing is rated IP65. It comes with a plain shaft and for feedback it relies on multiturn absolute encoder of 128 signal periods. Its feedback connects through a 240° rotatable connector for aiding integration. This unit delivers 12 Nm of continuous torque at 60 K, 43.5 Nm peak, 1.84 Nm/A torque constant and it possess 12.6 mH of inductance.