MSK040B-0450-NN-S3-UP0-NNNN Bosch Rexroth Indramat
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MPN: R911338656
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The Bosch Rexroth Indramat MSK040B-0450-NN-S3-UP0-NNNN is an IndraDyn S Synchronous Servomotor from the MSK IndraDyn S Synchronous Motors series. It features natural convection cooling, a 040 motor size with B length, and an IP65 protection rating. The servomotor is equipped with a rotatable 240-degree encoder connector, Hiperface encoder interface, and capacitive singleturn encoder technology.
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Product Description:
The MSK040B-0450-NN-S3-UP0-NNNN is an IndraDyn S synchronous servomotor built by Bosch Rexroth Indramat within the MSK IndraDyn S Synchronous Motors series. In automated machinery, it converts drive current into controlled rotary motion for positioning tasks that need high repeatability and compact dimensions. Its compact housing suits axes where installation space is limited and responsive motion is required. Typical uses include compact indexing units, feeders, and small handling axes where repeatable starts and stops are important to cycle timing. The motor has mechanical length B, which keeps the overall depth short for tight installation spaces.
The electromagnetic section follows winding code 0450 and uses size code 040, giving a stator geometry that pairs with medium-power drive modules while limiting inertia in small axes. Heat is removed through natural convection, so no external blower or liquid circuit is required. This cooling method reduces the need for auxiliary hardware around the motor body. A protection rating of IP65 seals the housing against dust ingress and low-pressure water jets, allowing mounting on open machine frames. The output end uses a shaft with keyway to transmit torque through standard keyed couplings. The motor is delivered without a holding brake, so static load retention must be provided by external mechanics or drive torque. Thermal insulation class 155 allows winding temperatures up to 155 °C during intermittent peaks without degrading varnish integrity.
Position feedback is routed through a rotatable 240° connector that carries a Hiperface interface. This single-cable link combines power for the capacitive encoder with its digital data stream and helps keep wiring compact around the motor. The rotatable connector also gives more flexibility when routing cables in crowded machine areas. Resolution of 16 signal periods per revolution in a single-turn format enables fine commutation and speed control without multi-turn tracking hardware. Rated operation is specified for ambient temperatures between 0–40 °C, matching general factory climates and preventing derating within that span. The encoder’s capacitive sensing principle is insensitive to magnetic fields and supports stable feedback under high-frequency switching currents.
Frequently Asked Questions about MSK040B-0450-NN-S3-UP0-NNNN:
Q: How is the MSK040B-0450-NN-S3-UP0-NNNN motor cooled?
A: This model uses natural convection cooling and does not require additional fans or forced air systems.
Q: Does the MSK040B-0450-NN-S3-UP0-NNNN motor include a holding brake?
A: The MSK040B-0450-NN-S3-UP0-NNNN is manufactured without a holding brake.
Q: What type of encoder connector does the MSK040B-0450-NN-S3-UP0-NNNN have?
A: A rotatable 240° encoder connector is used on this motor, providing flexibility in installation.
Q: What kind of shaft does the MSK040B-0450-NN-S3-UP0-NNNN motor offer?
A: This model features a shaft with keyway, which supports secure mechanical coupling.
Q: What is the protection rating of the MSK040B-0450-NN-S3-UP0-NNNN motor?
A: The MSK040B-0450-NN-S3-UP0-NNNN has an IP65 protection rating, offering dust-tight sealing and resistance to water jets.
