Product Description:

Bosch Rexroth Indramat manufactures the MHD115A-058-NG0-BN, which belongs to the MHD Synchronous Motors series and is classified as a servo motor. It converts electrical energy into finely controlled mechanical rotation so CNC axes, printing cylinders, and transfer gantries can follow programmed motion profiles with repeatable accuracy. The motor pairs an internal permanent-magnet rotor with a closed-loop feedback encoder, allowing the connected drive to regulate torque and position in real time. This arrangement supports compact axis designs that require steady speed control and repeatable positioning during continuous machine cycles.

The mechanical frame follows motor size 115 with length code A, giving a centering diameter of 180 mm and a flange square of 192 mm for direct mounting to precision gearboxes or machine plates. A plain shaft transmits power, and an integrated shaft seal helps prevent lubricant escape and particle ingress. Continuous stall torque is rated at 32.0 Nm, allowing stable holding or slow-speed feed without thermal overload. Heat from the windings is removed by liquid cooling, so winding code 058 can maintain torque in confined cabinets. Power leads exit toward side B through an output connector, and the motor comes without a holding brake for applications that use external clamping.

The housing carries a protection rating of IP65, so dust and water jets cannot reach the internal stator. Position is monitored by digital servo feedback (HSF), which uses an optical measurement method and delivers relative position data with a system accuracy of ± 0.5 angular minutes. The insulation system is class F, and continuous operation is allowed from 0 to 40 °C. Storage is permissible from -20 to +80 °C, and installation is limited to 1000 m above mean sea level. The feedback system gives the drive continuous position information during operation.