MSK040B-0450-NN-M3-UG1-NNNN Bosch Rexroth Indramat
MPN: R911339990
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The Bosch Rexroth Indramat MSK040B-0450-NN-M3-UG1-NNNN is an IndraDyn S Synchronous Servomotor with natural convection cooling and a standard design. It features a multiturn absolute capacitive encoder with Hiperface interface, a plain shaft, IP65 protection, and an electrically-released holding brake with 4 Nm torque.
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Product Description:
The MSK040B-0450-NN-M3-UG1-NNNN is a synchronous servomotor produced by Bosch Rexroth Indramat within the MSK IndraDyn S Synchronous Motors series. As an IndraDyn S synchronous servomotor, it supplies closed-loop torque and speed control for axis drives, pick-and-place units, and other precise motion tasks on automated machinery. The motor converts electrical energy from a compatible Rexroth controller into rotary output for tightly regulated positioning. Integrated motor feedback allows the paired drive to monitor rotor movement directly, which supports accurate response during indexing, transfer, and repeated positioning cycles.
The unit uses the standard design in motor size 040 with length code B, giving a compact cross-section for installations with limited mounting space. Its winding code 0450 identifies the stator configuration that the matching drive must recognize for proper current delivery. Heat is removed by natural convection, so no external fan or liquid circuit is required and the housing should remain unobstructed during operation. The enclosure has an IP65 rating that protects the frame against dust ingress and water jets. Continuous operation is permitted at ambient temperatures from 0–40 °C, and the plain shaft supports direct coupling to gearheads or belt pulleys.
Signal feedback is delivered through a Hiperface interface that combines power and data in one rotatable 240° connector, which helps simplify cable routing inside compact machines. The rotatable connector also gives more flexibility when cable exits must be aligned with adjacent machine structures. The capacitive encoder provides 16 signal periods per mechanical revolution and stores position over multiple turns through its multiturn absolute design, supporting interpolation in the drive controller. An electrically released brake supplies 4 Nm of static holding torque so the axis can remain fixed during power-off or emergency-stop conditions without external clamps. The motor uses a class 155 insulation system that works with the stated cooling method to support winding durability during continuous cyclic duty.
Frequently Asked Questions about MSK040B-0450-NN-M3-UG1-NNNN:
Q: What type of encoder does the MSK040B-0450-NN-M3-UG1-NNNN motor use?
A: This model is equipped with a multiturn absolute, capacitive encoder using a Hiperface interface.
Q: How much holding brake torque does the MSK040B-0450-NN-M3-UG1-NNNN have?
A: The holding brake on this motor provides a holding torque of 4 Nm and is electrically released.
Q: How is the MSK040B-0450-NN-M3-UG1-NNNN cooled?
A: The MSK040B-0450-NN-M3-UG1-NNNN motor uses natural convection to dissipate heat during operation.
Q: What is the protection rating of the MSK040B-0450-NN-M3-UG1-NNNN servomotor?
A: The protection rating for this motor is IP65, ensuring it is dust tight and protected against water jets.
Q: What type of shaft does the MSK040B-0450-NN-M3-UG1-NNNN servomotor have?
A: This motor features a plain shaft type, suitable for applications requiring simple mechanical coupling.