Product Description:

The SR-A3.0093.030-00.000 is a synchronous servo motor produced by Bosch Rexroth Indramat for the SR Synchronous Servo Motors series. Designed for closed-loop industrial axes, it converts drive current into precise rotary motion for positioning tooling, conveyors, and robotic joints. The unit mounts to machinery with a 116 mm square flange and transmits power through a 19 mm diameter, 40 mm long shaft machined with an A6 × 6 × 32 keyway. Rotor position is detected by an integral resolver, allowing the drive controller to monitor the rotor angle accurately during low-speed operation.

The motor reaches a rated speed of 3000 rpm, enabling rapid acceleration and short cycle times on lightly geared loads. A torque constant of 1.35 Nm/A links commanded current to developed torque, allowing control algorithms to calculate the required drive output. Under locked-rotor conditions, the motor can withstand 8.1 Nm while the winding draws 6.0 A. These values assist with circuit protection and coupling selection. The housing has an IP67 protection rating, so the stator, resolver, and bearing cavity are sealed against dust and temporary water immersion. The motor requires a cable with four 1.5 mm² conductors, and its overall length of 287 mm accommodates installation in compact automation frames.

The bearings have a service life of 20,000 hours, while the permitted axial load is 133 N. This load capacity supports moderate thrust from belt tensioners or vertical loads without causing premature wear. A rotor inertia of 16 × 10⁻⁴ kg·m² provides a balance between responsive speed changes and stable regulation. The resolver supplies a resolution of 8192 increments per revolution with an accuracy of ±10 angular minutes, providing precise feedback for position interpolation by the controller. The motor is suited to motion axes in packaging, assembly, and semiconductor handling systems where accurate position and speed control are required.