Product Description:

The MHD093A-058-NG1-BA is a servo motor built by Bosch Rexroth Indramat for the MHD Synchronous Motors series. It is applied in automated equipment where closed-loop rotation and position control are required to coordinate tooling, conveyors, or robotic motion with millisecond accuracy, replacing pneumatic or hydraulic actuators with electrically driven precision. In servo systems, this type of motor supports repeatable starts, stops, and holding functions during synchronized machine movement.

This motor sustains a continuous torque of 12.0 Nm, so machine axes can remain energized without overheating or drift. The motor is sealed to IP65, blocking dust ingress and water jets in plant-floor enclosures. A high-speed encoder that uses digital servo feedback (HSF) supplies relative position data to the drive controller, and its optical scanning method combines with a system accuracy of ± 0.5 angular minutes to keep contouring errors low. During emergency stops or power loss, a permanent-magnet brake applies 22.0 Nm of holding torque to secure suspended or vertical loads. Cooling relies on natural convection through the aluminum housing, eliminating the need for external air movers. The winding code 058 identifies the electrical configuration, and power is connected through an output connector on side B of the stator.

Mechanical interfaces use a centering diameter of 130 mm with flange holes on the 140 / 150 mm pitch circle, which helps the motor fit common mounting patterns in this frame size. Class F insulation withstands winding temperatures up to 155 °C, supporting continuous operation in an ambient range of 0 to 40 °C. The plain shaft includes a radial seal to reduce lubricant escape, and the housing may be stored from -20 to 80 °C when the machine is idle. Motor size 093 with length code A keeps mass and inertia moderate for installations up to 1000 m above mean sea level. This layout leaves space at the opposite end for a gearbox or coupling.