MHD090B-047-NP0-UN Bosch Rexroth Indramat
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MPN: R911286080
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The Bosch Rexroth Indramat MHD090B-047-NP0-UN is a servo motor in the MHD Synchronous Motors series featuring a continuous torque at standstill of 12.0 Nm and a keyed shaft with seal. It is designed with a 140 mm flange, 110 mm centering diameter, and supports liquid cooling. The motor has a digital servo feedback encoder with relative position detection and does not include a holding brake.
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Product Description:
The MHD090B-047-NP0-UN servo motor is manufactured by Bosch Rexroth Indramat for the MHD Synchronous Motors series. It serves as a high-precision actuator that links a drive controller to a mechanical load, delivering commanded speed or position for automated tooling, conveyors, and pick-and-place stations. In closed-loop motion systems, the motor converts electrical input into controlled rotary output so the connected axis can respond smoothly to changing commands. The motor has frame size 090, length code B, and a keyed shaft, giving it a compact profile that fits standard machinery while providing direct torque transfer.
A centering diameter of 110 mm aligns the stator housing concentrically with machine frames, minimizing radial runout. The square mounting face measures 140 mm, allowing the motor to bolt to IEC-compatible flanges. At standstill, it supplies 12.0 Nm of continuous torque, enabling stable holding or low-speed feed without thermal overload. Heat generated by copper and iron losses is removed through liquid cooling, so full torque remains available through extended cycles. The power connector can be rotated through 270°, which helps with cable routing inside tight enclosures. Both stator power and encoder feedback are routed through combined power and feedback connectors.
Rotor position is measured by a digital servo feedback (HSF) encoder that reports incremental data for rapid control loops, and its signal chain supports relative position tracking for systems that perform homing at startup. This arrangement allows the drive to correct motion quickly during indexing and steady-speed operation. Winding code 047 indicates the electrical resistance and inductance used for nominal voltage operation, while the motor’s keyed shaft helps prevent slip during accelerating loads. A shaft seal is fitted to limit the ingress of dust and coolant, yet the unit is supplied without a holding brake, so any load holding must be handled by the drive or external mechanics.
Frequently Asked Questions about MHD090B-047-NP0-UN:
Q: What is the continuous torque at standstill for the MHD090B-047-NP0-UN motor?
A: This model supports a continuous torque of 12.0 Nm at standstill, suitable for precise load holding in static conditions.
Q: Does the MHD090B-047-NP0-UN have an integrated holding brake?
A: The MHD090B-047-NP0-UN operates without a holding brake, so external solutions will be necessary for holding applications.
Q: What type of encoder does the MHD090B-047-NP0-UN use?
A: This motor utilizes digital servo feedback (HSF) for position detection, enabling accurate relative position measurements.
Q: What cooling method does the MHD090B-047-NP0-UN motor use?
A: The MHD090B-047-NP0-UN features liquid cooling, enhancing heat dissipation for continuous high-performance operation.
Q: What is the shaft design of the MHD090B-047-NP0-UN?
A: A keyed shaft with a shaft seal is included for secure mechanical coupling and enhanced protection against contaminants.
