Product Description:

Bosch Rexroth Indramat manufactures the MAC063B-0-JS-4-C/095-A-0/WI634LX as part of the MAC AC Servo Motors series. Classified as a motor for analog drives, this unit supplies controlled torque and speed to mechanical axes driven by legacy analog amplifiers. In automated assembly, packaging, or handling lines, the motor converts drive commands into rotation while its integrated speed and position feedback channels help maintain commanded motion profiles. That makes it suitable for retrofit systems that continue to use analog control architecture rather than newer digital servo platforms.

The mechanical interface uses a centering diameter of 95 mm, allowing precise alignment to flanges or mounting plates. Heat produced by the stator is removed through natural convection, so enclosure airflow must be adequate without supplemental fans. Under rated conditions, the rotor reaches 6000 rpm, a speed suitable for light-inertia end effectors that need rapid cycle times. Power conductors enter through a connector on side A, simplifying cable routing when the shaft end is obstructed. Winding code JS sets the phase resistance and current limits for the paired analog drive. A built-in tacho generator outputs 1.5 V/1000 rpm, giving the controller a proportional speed signal. Because the motor has no blocking brake, holding torque during power-off must come from the drive or an external latch.

The motor is size 063 with length code B, placing its active stack near the middle of the MAC family and providing moderate continuous torque without enlarging the frame. For higher-resolution positioning, the motor includes a coaxially mounted incremental encoder, so the controller can use quadrature feedback for fine position correction. The encoder and tacho signals give the control loop separate sources for fine correction and stable speed feedback during changing loads. This arrangement helps when motion quality must remain smooth during repeated starts, stops, and speed changes. Passive cooling and the compact frame make the motor suitable for machines that need quick acceleration and steady operation.