MHD071B-061-PP0-UN-R
Bosch Rexroth Indramat’s MHD071B-061-PP0-UN-R belongs to the MHD Synchronous Motors series and serves as a compact servo motor for closed-loop motion axes in production machinery. By combining a permanent-magnet rotor with electronic commutation, the unit delivers precise torque and speed regulation required for automated pick-and-place stations, packaging lines, and tooling slides. The motor is supplied without an internal holding brake, so stopping energy must be managed by the drive or by external mechanics when power is removed.
The mechanical interface starts with a centering pilot of 95 mm that aligns the housing concentrically with gearboxes or machine frames, while a mounting flange of 115 mm provides the bolt circle for ISO-standard adapters. At standstill, the electromagnetic system can produce 8.0 Nm continuously, giving the motor the torque needed for static loads such as vertical axes without overheating. Thermal energy is removed through liquid cooling, allowing higher current density than air-cooled units of comparable size and keeping winding temperatures within insulation limits during extended duty cycles. Within the series, winding code 061 indicates the electromagnetic layout and the matching phase resistance and inductance for the connected drive.
Rotor position is reported by a built-in encoder that delivers digital servo feedback, and the feedback channel supports absolute (>4096 revolutions) multiturn tracking that eliminates homing moves after power-up. Mechanical power is transferred through a keyed shaft, a feature that prevents slippage under start-stop cycles and simplifies coupling to pulleys or pinions. Cabling can be routed in tight enclosures because the power connector is turnable within a range of 270°, reducing bend stress on conductors. A shaft seal is fitted to block coolant or lubricant ingress, supporting reliable service in fluid-rich production environments.
