Product Description:

The MAC115B-1-ES-3-C/130-B-0/S009 is an AC servo motor produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Designed for use with analog drives, it converts commanded current into controlled torque and speed for automated axes in machining centers, palletizers, and packaging modules. Its permanent-magnet rotor and laminated stator support stable motion during repeated acceleration and deceleration cycles. This motor is suited to continuous-duty applications where consistent speed response and positioning behavior are required across long production runs.

The winding code ES indicates the electrical resistance and inductance values used by compatible Indramat power stages. Heat generated in the windings is removed through axial surface cooling, which directs airflow along the housing fins to help keep winding temperature within permissible limits. The auxiliary blower operates on AC 230 V, allowing it to use a common single-phase supply. Mechanical centering is achieved by a 130 mm pilot diameter, which aligns the motor frame to gearboxes or mounting flanges without additional bushings. The motor has no holding brake, so any vertical load must be secured by the drive controller or by an external brake when power is removed.

Frame size 115 gives the motor its stator outside diameter, and length code B provides an intermediate active stack that balances continuous torque with manageable mass for gantry axes and other moving assemblies. The feedback package includes tacho feedback and a second shaft end, which allows auxiliary mechanical coupling without interfering with the primary drive function. Power enters through a connector on side B, helping separate high-current conductors from signal wiring during installation. This cable arrangement can simplify routing in compact machine layouts and can help reduce electrical noise near feedback circuits.