MHD090B-058-PP0-UN Bosch Rexroth Indramat
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MPN: R911279162
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The Bosch Rexroth Indramat MHD090B-058-PP0-UN is a servo motor in the MHD Synchronous Motors series featuring a continuous torque at standstill of 12.0 Nm and a liquid cooling housing. It has a 140 mm flange size, 110 mm centering diameter, and uses digital servo feedback with an integrated encoder for absolute position detection over more than 4096 revolutions. The motor is equipped with a keyed shaft and turnable power and feedback connectors within a 270 degree range.
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Product Description:
The MHD090B-058-PP0-UN is a servo motor manufactured by Bosch Rexroth Indramat and assigned to the MHD Synchronous Motors series. In automated machining centers, packaging cells, and assembly gantries, the unit converts drive controller commands into tightly regulated rotary motion for positioning tasks and coordinated axis movement. Its mechanical form factor allows direct mounting beside gearboxes or belt stages, while its integrated feedback loop enables closed-loop speed and position control. This layout supports repeatable axis motion during indexing, contouring, and other synchronized machine movements.
The motor has a 140 mm square mounting flange and a centering seat of 110 mm, allowing attachment to ISO flanges without spacer rings. It belongs to size 090 with length code B, a combination that balances footprint and thermal mass. Under rated conditions, it delivers 12.0 Nm of continuous standstill torque so a coupled load can resist stationary process forces between commanded moves. Heat from the stator is removed by liquid cooling, which supports stable operation in enclosed machinery. The flange and centering combination also helps the motor seat accurately against the machine face, supporting consistent shaft alignment with couplings or transmission components. The electromagnetic circuit uses winding code 058, which corresponds to the electrical values expected by the connected drive for current control.
The output shaft uses a keyed shaft interface for positive torque transmission, and a shaft seal helps keep coolant or dust away from the front bearing. Position information is supplied by digital servo feedback with Absolute (>4096 revolutions) capability, so the control system can retain multi-turn position information after power is removed. For flexible routing, the power connector is turnable within a range of 270°, and separate power and feedback connectors help organize cable runs in tight machine spaces. Separate connections also keep signal wiring apart from motor current conductors, which supports cleaner routing at the installation point. The motor is delivered without a holding brake, so static locking must be supplied by drive torque or an external clamp when the axis must remain fixed at standstill.
Frequently Asked Questions about MHD090B-058-PP0-UN:
Q: What type of cooling does the MHD090B-058-PP0-UN motor use?
A: This motor features a liquid cooling system for its housing.
Q: What shaft design is present on the MHD090B-058-PP0-UN motor?
A: A keyed shaft is used for the MHD090B-058-PP0-UN, providing secure mechanical connection.
Q: Does the MHD090B-058-PP0-UN include a holding brake?
A: The MHD090B-058-PP0-UN is manufactured without a holding brake.
Q: What encoder type is included on the MHD090B-058-PP0-UN motor?
A: This model uses digital servo feedback with an integrated encoder for precise position detection.
Q: What is the continuous torque at standstill of the MHD090B-058-PP0-UN?
A: The continuous torque at standstill for this motor is rated at 12.0 Nm.
