Product Description:

The SR-A3.0093.030-04.000 synchronous servo motor is produced by Bosch Rexroth Indramat as part of the SR Synchronous Servo Motors series. Designed for closed-loop motion tasks, the motor supplies regulated torque and speed to conveyors, pick-and-place axes, and other automated equipment that relies on fast acceleration and repeatable positioning. A resolver mounted on the shaft provides rotor-angle feedback to the drive, while the IM B5 flange arrangement simplifies rigid coupling to gearboxes or machine frames.

At its rated speed of 3000 rpm, the rotor can maintain synchronized motion with the drive’s output frequency while delivering continuous power. The electromagnetic design provides a torque constant of 1.35 Nm/A, so each ampere of armature current produces a consistent amount of shaft torque for current-based control loops. Total rotating inertia, including the feedback device, is 16 × 10⁻⁴ kg·m²; this moderate value allows the axis to accelerate quickly while preserving stability when load conditions change. When the motor is stalled, it draws a locked-rotor current of 6.0 A and generates a stall torque of 8.1 Nm to resist external forces until motion begins.

A holding brake integrated at the non-drive end supplies 10.0 Nm of static torque, allowing vertical or indexing axes to remain fixed when motor power is removed. The brake operates from a 24 V ±10% supply and draws 0.66 A, making it compatible with standard control power rails. Mechanical attachment uses a square flange measuring 116 mm, while a 19 mm diameter shaft with a length of 40 mm transmits torque to connected couplings through an A6 × 6 × 32 parallel key. The motor has an overall length of 326 mm and a mass of 11.6 kg, providing a compact form for platform-mounted or machine-mounted installations. Its resolver delivers 8,192 increments per revolution for precise position feedback during closed-loop operation.