Product Description:

The SR-L1.0008.060-04.000 is a synchronous servo motor manufactured by Bosch Rexroth Indramat within the SR Synchronous Servo Motors series. It supplies precise rotary positioning and velocity control for automated machinery, allowing drive controllers to regulate shaft speed and torque in pick-and-place modules, feeders, and indexing tables. The unit integrates an electromagnetic holding brake and resolver feedback so that motion sequences can be stopped, held, and restarted under closed-loop control in industrial automation cells.

The motor reaches a rated speed of 6000 rpm, providing fast cycle times while staying within the magnetic and thermal limits of the winding set. Torque rises proportionally with current because the motor has a torque constant of 0.73 Nm/A. During continuous standstill operation, the phase windings draw 1.1 A and generate a standstill torque of 0.8 Nm to resist external loads until motion is commanded. When the brake is engaged, its 2.5 Nm holding torque helps prevent vertical axes from drifting after motor power is removed. Position data are returned through a resolver that provides 8,192 increments per revolution and an accuracy of ±10 arcminutes, enabling fine interpolation by the drive controller.

The integrated brake consumes 12 W while its coil is energized for release. The complete assembly, including the feedback devices, has a rotor inertia of 0.47 × 10⁻⁴ kg·m², helping the axis accelerate and decelerate quickly without excessive overshoot. Brake release is triggered at 24 VDC, matching the low-voltage control supplies commonly used in machinery panels. The total length with the brake fitted is 188 mm, allowing the motor to fit into compact mechanical spaces. The shaft measures Ø11 × 23 mm and follows the DIN 6885 keyway standard for positive torque transfer. Two NTC temperature sensors allow the drive to monitor winding temperature and apply current limits when necessary.