MHD071B-061-PG0-UN Bosch Rexroth Indramat
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MPN: R911273675
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The Bosch Rexroth Indramat MHD071B-061-PG0-UN is a synchronous motor from the MHD Synchronous Motors series featuring a continuous torque at standstill of 8.0 Nm and a plain shaft. It has a flange size of 115 mm, a centering diameter of 95 mm, and is equipped with digital servo feedback with an integrated encoder for absolute position detection over more than 4096 revolutions. The motor features liquid cooling and its power connection is turnable within a range of 270 degrees.
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Product Description:
The MHD071B-061-PG0-UN is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the MHD Synchronous Motors series. Within an automation cell, it converts drive current into rotational motion for feed axes, handling units, and compact machine tools. When paired with a compatible servo drive, it supports precise speed and position control during repeated motion cycles. The motor uses a square flange and centering pilot for consistent face mounting to gearboxes or direct-drive loads. A rotatable power connector also helps with cable routing inside tight electrical cabinets.
The motor can deliver a continuous standstill torque of 8.0 Nm, allowing it to hold or index a load without overheating when the shaft is stationary. Accurate alignment to the mechanical interface is aided by its centering diameter of 95 mm, while the square mounting interface uses a flange size of 115 mm. Service routing is flexible because the power connector can be rotated through 270°, enabling strain-relieved cabling in different mounting orientations. Thermal energy is removed by liquid cooling, so the motor maintains stable winding temperature even in enclosures with limited airflow. This cooling method supports sustained operation in enclosed machine spaces where airflow is restricted.
Position and speed are monitored by a digital servo feedback encoder that provides multi-turn absolute information across more than 4096 revolutions, eliminating the need for homing after power loss. This feedback arrangement gives the control system absolute position information over multiple turns, which helps the axis restart with a known rotor position after an interruption. The load is driven through a plain shaft, so torque is transmitted by friction-fit couplings or external keys rather than by an integral keyway. The motor uses winding code 061, and its mechanical length is identified by the B size designation. Power and feedback are brought out through combined connectors, which keep the external connections compact at the motor housing.
