R911333387 (MSK101D-0450-NN-M1-BP2-NNNN)

Name: R911333387 (MSK101D-0450-NN-M1-BP2-NNNN)
Brand: Indramat Motors
SKU: MSK101D-0450-NN-M1-BP2-NNNN
Price: 873.00 USD
Availability: InStock

MSK IndraDyn S Synchronous Motors

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The R911333387 (MSK101D-0450-NN-M1-BP2-NNNN) is a synchronous servomotor from Bosch Rexroth's IndraDyn S series. This model provides a continuous torque of 57 Nm and a continuous standstill current of 50.6 A at 100 K, with a maximum torque of 160 Nm and peak current of 187.7 A. The winding resistance is 0.10 ohm, inductivity is 1,700 mH, and the torque constant is 1.32 Nm/A. Cooling is via natural convection, and the design includes a shaft with keyway and a holding brake rated at 70 Nm. The motor uses a multi-turn absolute optical encoder with Hiperface interface and 128 signal periods. It features a sealing ring on the shaft keyway to exclude lubricant intrusion, IP65 protection against high-pressure water and noncorrosive substances, a B-side power connector, a thermal time constant of 100 minutes, and operates within 0 to +40°C.

Technical Specifications

Product Type
Bosch Rexroth MSK Synchronous Motor

Continuous Torque Rating at 100 K
57 Nm

Continuous Current Rating at 100 K
50.6 A

Winding Resistance
0.10 ohms

Constant Torque
1.32 Nm/A

Holding Brake Weight
3.80 kilograms

Holding Brake Torque
70 Newton-meters

Connections and Disconnections Periods for Brake
53 and 97 milliseconds

Presence of Sealing Ring in Output Shaft
Yes

Thermal Time Constant
100 minutes

Optimal Operating Temperature
0 to +40 degrees Celsius

Constant Torque on Surface Cooling
75 Nm

Constant Current on Surface Cooling
66 A

Presence of Internal Temperature Sensor
Yes

Presence of Absolute Multi-turn Hiperface Encoder
Yes

Protection Requirements
IP 65

Insulation Rating
155

Global Distribution
Yes

Frequently Asked Questions

Why is natural convection cooling (no fan) chosen over forced cooling in this motor?

The natural convection eliminates moving parts, reducing maintenance and failure points. It is sufficient given the motor’s thermal design and continuous power dissipation limits.

What is the function of the 70 Nm electrically released holding brake in MSK101D-0450-NN-M1-BP2-NNNN motor?

In power-off conditions the MSK101D-0450-NN-M1-BP2-NNNN motor mechanically locks the shaft, preventing back-driving of the load. On power-up the brake releases quickly, resuming motion with minimal delay.

What applications are common for the MSK101D-0450-NN-M1-BP2-NNNN motor?

The MSK101D-0450-NN-M1-BP2-NNNN motor is widely used in CNC axes, robotics joints, and high-speed packaging machines due to its high torque, compact frame, and absolute encoding. Its torque density and robustness suit dynamic industrial tasks.

Why is the shaft keyed rather than smooth in this IndraDyn S model?

A keyway ensures positive torque transmission to gearboxes or couplings, preventing slippage under high torque loads. It simplifies mechanical alignment under load.

What is the advantage of using an absolute rather than incremental encoder in this motor?

The absolute encoders preserve the exact rotor position upon power-off or fault, eliminating rehoming routines. This reduces downtime and enhances system resilience.

Common Misspellings

MSK101D0450NNM1BP2NNNN

MSK101D 0450 NN M1 BP2 NNNN

MSK-101D-0450-NN-M1-BP2-NNNN

Internal Product Review

The Bosch Rexroth Indramat MSK101D-0450-NN-M1-BP2-NNNN synchronous motor offers 57 Nm continuous and 160 Nm peak torque with precise control. Its multiturn absolute encoder, 1,700 mH inductivity, and natural convection cooling ensure stable operation and easy integration. Commonly used in CNC machinery, robotics, and packaging systems, it supports accurate and reliable motion performance.