Product Description:

The MHD090B-035-NG1-UN is a servo motor built by Bosch Rexroth Indramat and belongs to the MHD Synchronous Motors series. As a self-contained drive element, it converts electrical energy into rotary motion for positioning axes in automated machinery such as transfer systems, indexing tables, and handling units. The size 090 housing uses a plain shaft for direct coupling, and the B-length frame gives the motor a medium overall package for applications that need a balance of torque and response. An integrated holding brake helps secure the axis when power is removed, which is useful on vertical or suspended mechanisms that should not drift at rest.

The motor delivers a continuous standstill torque of 12.0 Nm, letting the axis maintain force at zero speed without excessive heating. A square mounting interface with a 140 mm flange aligns the housing accurately to gearheads or machine frames. Heat is removed through liquid cooling, which supports higher continuous output in demanding duty cycles. Rotor position is monitored by digital servo feedback (HSF), providing the drive with incremental signals for closed-loop current and speed control. Power connectors can be rotated through a 270° sweep, and the matching feedback connector exits from the same side to simplify cable routing in tight enclosures.

An electromechanical brake rated at 11.0 Nm holds the shaft when the drive is disabled. Accurate centering during installation is aided by a 110 mm pilot diameter that keeps the motor concentric with the driven equipment. A shaft seal helps limit lubricant migration and dust ingress around the output end. Winding code 035 identifies the electrical configuration used with compatible Indramat drive controllers. Position feedback is relative, so the axis uses a homing routine after startup before absolute coordinates are available.