Product Description:

The MAC112D-2-HD-2-B/130-A-0/S05 is a motor for analog drives produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. In automated production lines, this unit converts drive commands into controlled rotary motion for positioning tables, tool heads, or material feed axes. It is intended for axes that need repeatable speed and position control from a separate analog servo amplifier. The design follows size code 112 and uses the D length designation to balance torque potential with installation space. The motor has no blocking brake, so any load-holding requirement must be handled by external locking devices or by drive torque retention during downtime.

The rotor interface uses a 130 mm pilot diameter, which helps keep the motor flange concentric with adjoining machine parts. Heat produced in the windings is removed through axial surface cooling, and air is drawn along the housing to keep stator temperature within normal limits during continuous duty. The external blower for this cooling method operates at AC 115 V, so the auxiliary fan circuit can be powered from common control cabinet supply rails. Rated speed reaches 1500 rpm, supporting constant-velocity processes that rely on tight speed regulation from the analog drive. The electromagnetic system uses winding code HD, which identifies the electrical winding used for this torque and speed range.

Position and velocity feedback are generated by a mounted tacho generator, and the motor is delivered with tacho feedback for closed-loop speed circuits used in legacy control hardware. This style of feedback is commonly used where the control loop expects an analog speed signal instead of digital encoder data. The feedback signal is proportional at 3 V/1000 rpm, giving the drive a direct speed reference during operation. Power leads exit through a connector on side A, which helps determine cable routing inside the machine frame. This arrangement supports orderly integration where cable direction must match the available mounting space around the axis.