Product Description:

The SR-A4.0091.030-10.000 belongs to the SR Synchronous Servo Motors series manufactured by Bosch Rexroth Indramat. This brushless unit is intended for closed-loop motion axes in industrial automation where repeatable velocity and position are required. By using resolver feedback with a drive controller, the motor converts electrical commands into mechanical rotation for tasks such as pick-and-place modules or precision conveyor sections.

At its rated speed of 3000 rpm, the rotor can maintain continuous motion without overheating. The standstill torque of 9.1 Nm indicates the available holding torque when the shaft is locked, while the torque constant of 1.42 Nm/A shows the relationship between motor current and produced torque. The standstill current is 6.6 A, which states the continuous current demand at zero speed. Resolver feedback provides a resolution of 8192 increments per revolution, and position deviation remains within plus or minus 10 arc-minutes, allowing accurate loop control. Two NTC temperature sensors monitor winding heat, the shaft measures 24 mm by 50 mm, and the IM B5 flange arrangement supports mounting from the driven machine side. A resolver also tolerates electrical noise and high operating temperatures better than many optical feedback devices.

The motor has a mass of 13 kg, which suits installations that need a solid servo package without an overly large frame. Rotor inertia is 21 × 10^-4 kg·m², giving the motor a moderate dynamic response for indexed motion and controlled acceleration. The bearings are rated for 20000 h of service life, and the housing length of 246 mm helps the motor fit into compact multi-axis machine layouts. These values support continuous-duty use where predictable motion behavior and stable mechanical support are required.