Product Description:

The MAC92A-0-DD-2-C/95-A-2/S018 is an AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It is designed for analog drives and provides precise velocity and torque control in industrial automation axes that use analog current or voltage commands. Electronic commutation controls the three-phase stator without relying on mechanical brushes. A permanent-magnet rotor produces the working magnetic flux and supports rapid changes in shaft speed and torque.

With natural-convection cooling, the motor produces a continuous shaft torque of 1.50 Nm. The windings draw a continuous phase current of 6.90 A while maintaining this operating point. Torque increases in proportion to current according to a torque constant of 0.240 Nm/A. At the rated speed of 4000 rpm, a standard tacho generator provides velocity feedback to the analog drive without requiring an encoder. The generator delivers 1.5 V/1000 rpm, allowing the controller to calculate motor speed directly from the feedback voltage.

Electrical power enters through a fixed plug on Side A, keeping the connection direction consistent within the machine layout. The motor has an enclosure rating of IP65, which protects its internal components against dust and low-pressure water jets. A centering pilot measuring 95 mm aligns the flange with a gearbox or machine mounting plate and supports accurate shaft positioning during installation. During rapid indexing, the rotor has a mass moment of inertia of 8.70 × 10⁻⁴ kg·m², which affects the current and time required for acceleration or deceleration. The installed blocking brake holds the shaft stationary when motor power is removed, helping prevent unintended movement on axes that must remain fixed at rest. Because the motor uses tacho feedback without an encoder, the signal wiring is limited to the connections needed for velocity regulation rather than digital position measurement.