Product Description:

The MHD090B-047-PG0-UN is a servo motor produced by Bosch Rexroth Indramat for the MHD Synchronous Motors series. In industrial automation, it serves as a precision drive element that links the motion commands of an electronic controller to mechanical load movement, enabling closed-loop speed and position control in assembly lines, packaging stations, and processing machines. By integrating a high-resolution feedback device and a sealed housing, the motor supports use in settings where low downtime is essential.

Its rated continuous output reaches 12.0 Nm at standstill, allowing the axis to hold or index loads without additional gearing. Heat generated under that load is removed through liquid cooling, so winding temperature remains within the Class F insulation limit. A cast housing sealed to IP65 blocks dust and water jets while keeping the coolant channels separate from the process area. Mechanical alignment is simplified by a 110 mm centering diameter that mates with the 140 mm flange, while size code 090 and length code B describe the frame envelope for compact machinery. The plain shaft couples to transmission elements, and a shaft seal helps prevent fluid ingress. Because the motor is supplied without a holding brake, external locking devices must secure vertical loads. Power and feedback connectors can be turned through 270° for easier cable routing, and the unit tolerates continuous service from 0 to 40 °C, storage from −20 to +80 °C, and installation up to 1000 m above sea level.

Position quality is supported by the digital servo feedback system, which uses an optical measurement method to generate absolute rotor data for more than 4096 revolutions. Combined with a system accuracy of ±0.5 angular minutes, the controller can execute fine corrections during high-speed cycles. Electrical behavior uses winding code 047, giving a repeatable resistance and inductance profile for operation with a compatible drive.