Product Description:

The SR-L0.0009.060-14.000 is a synchronous servo motor produced by Bosch Rexroth Indramat in the SR Synchronous Servo Motors series. It is intended for axis drives and pick-and-place modules that require accurate torque and position control under closed-loop feedback. The unit integrates a resolver and an electrically released holding brake, allowing the drive controller to maintain or release shaft position as needed in automated assembly lines, packaging equipment, and light material-handling stages.

This motor reaches a rated speed of 6000 rpm, giving fast cycle times in machines that need high throughput. A torque constant of 0.73 Nm/A links output torque directly to phase current, simplifying current-loop tuning in the drive. When a mating connector is fitted, the housing achieves protection class IP67, so the stator windings remain sealed against coolant spray and dust. Mechanical integration is aided by a flange width of 55 mm, while a shaft machined to Ø9 × 20 mm mates with compact couplings or pulleys. During startup, the drive may draw the locked-rotor current of 1.3 A to generate 0.95 Nm for breakaway, which helps with power-stage sizing and thermal checks during frequent indexing.

The holding brake supplies 1.0 Nm at 120 °C, enough to secure the load when power is removed from the phases. It is energized from 24 VDC ±10%, 5% ripple through the controller and releases within 20 ms, while locking re-engages after 30 ms for predictable stopping intervals on vertical axes. Position feedback comes from a resolver whose analog output is interpolated to 8192 incr./rev., and its precision of ±10 angular minutes supports fine velocity loops without an added encoder. The resolver signal allows the drive to regulate speed and position accurately during continuous industrial operation.