Product Description:

The SR-A3.0068.060-00.000 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the SR Synchronous Servo Motors series. This framed rotor-stator assembly is intended for closed-loop motion axes in automated production cells and machine tools. Its compact design supports rapid acceleration and repeatable positioning where installation space is limited.

During normal operation, the motor reaches a rated speed of 6000 rpm. Its electromagnetic design provides a torque constant of 0.77 Nm/A, allowing drive current to be translated directly into mechanical torque. When the shaft is held, the motor can withstand a locked-rotor torque of 6.6 Nm while drawing a locked-rotor current of 8.5 Arms. Dynamic response is supported by a rotor inertia of 11 × 10⁻⁴ kg·m², which helps limit overshoot when the resolver feedback closes the control loop. Position data are delivered by a resolver with an accuracy of ±10 arcminutes and a resolution of 8,192 increments per revolution. The output shaft measures 19 mm in diameter and 40 mm in length, and it has an A6 × 6 × 32 feather key for positive coupling to gears or pulleys. The shaft permits an axial load of up to 133 N. The flange pattern follows IEC dimensions and has a 116 mm register for connection to standard gearhead adapters.

The motor has a mass of 9 kg distributed along its 255 mm housing length, supporting stable installation without creating an excessively large footprint. An ingress protection rating of IP67 seals the stator windings against coolant splashes and airborne particles, while a maximum ambient temperature of 40 °C permits operation in typical industrial environments without auxiliary chillers. The square mounting face measures 116 mm, and the resolver cabling and power terminals are gasketed to prevent washdown fluids from entering the enclosure. The sealed connections and keyed shaft support use in conveyor drives, indexing tables, and similar continuous-duty applications.