MHD090B-047-NG1-UN Bosch Rexroth Indramat 12 Newton Meter Liquid Cooled Servo Motor
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MPN: R911283439
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The Bosch Rexroth Indramat MHD090B-047-NG1-UN is a servo motor from the MHD Synchronous Motors series featuring liquid cooling, a 140 mm flange size, and a plain shaft with shaft seal. It provides a continuous torque at standstill of 12.0 Nm and includes a holding brake with 11.0 Nm torque. The motor is equipped with a digital servo feedback encoder and offers IP65 protection.
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Product Description:
The MHD090B-047-NG1-UN is a synchronous servo motor produced by Bosch Rexroth Indramat for the MHD Synchronous Motors series. It forms the rotary actuation stage in closed-loop industrial axes, converting drive current from Rexroth controllers into mechanical rotation with high position repeatability. The motor incorporates relative optical feedback to inform the drive of rotor position, making it suitable for packaging lines, machining centers, and material-handling modules that require coordinated motion within multi-axis automation cells.
Its continuous stall capability is rated at 12.0 Nm, allowing the shaft to hold steady loads without overheating during static positioning cycles. The housing is sealed to IP65, so dust and sprayed water are kept away from the windings and the integrated digital feedback sensor. Thermal energy is removed by liquid cooling, with coolant circulating around the stator to sustain full torque at elevated ambient temperatures. Mechanical interface dimensions include a 110 mm centering diameter that aligns the flange to gearboxes and a square flange of 140 mm that matches IEC mounting patterns. Insulation class F permits winding temperatures up to 155 °C during intermittent overloads.
In dynamic duty profiles, the integrated holding brake supplies 11.0 Nm of static torque, maintaining axis position when power is removed during tool changes or safety stops. The motor operates reliably from 0 to 40 °C, and it can be stored from −20 °C to 80 °C without affecting magnet strength. Positional precision is supported by a feedback system with an accuracy of ±0.5 angular minutes. Cable management is simplified because the power connector can be rotated through 270°, so the same unit fits cabinets with different entry directions. Additional features include an oil-resistant shaft seal, a plain output shaft for backlash-free couplings, and permissible installation heights up to 1000 m above mean sea level.
Frequently Asked Questions about MHD090B-047-NG1-UN:
Q: What cooling method is used in the MHD090B-047-NG1-UN motor?
A: The MHD090B-047-NG1-UN motor uses liquid cooling to maintain optimal operating temperatures during use.
Q: What is the continuous torque at standstill for the MHD090B-047-NG1-UN motor?
A: This model provides 12.0 Nm of continuous torque at standstill.
Q: Does the MHD090B-047-NG1-UN motor include a holding brake and what is its torque?
A: The MHD090B-047-NG1-UN includes a holding brake with a torque of 11.0 Nm.
Q: What type of shaft and seal does the MHD090B-047-NG1-UN motor have?
A: The shaft on this model is a plain shaft and is equipped with a shaft seal.
Q: What type of encoder is featured in the MHD090B-047-NG1-UN motor?
A: This motor uses a digital servo feedback (HSF) encoder for relative position detection.
