Product Description:

The 8LSA44.R2045D100-3 servo motor is produced by B&R Automation within the 8LS Synchronous Motors series. Intended for precision motion on packaging lines, pick-and-place gantries, and light machine tools, the unit converts inverter currents into controlled rotary output. Its A-style designation links it to the standard build of the platform, allowing straightforward flange mounting without auxiliary cooling hardware. The motor serves as a compact drive element that integrates directly with B&R servo inverters for closed-loop speed and position control.

This model is a three-phase synchronous motor, enabling a fixed relationship between the stator field and rotor magnets for high efficiency across variable loads. Its nominal velocity reaches 4500 rpm, delivering rapid indexing where short cycle times are critical. Thermal limits are managed by self-cooling through free air circulation, so no external fan or liquid circuit is required. Rotor angle feedback is supplied by a resolver, which withstands electrical noise and mechanical shock better than optical encoders. For mid-level positioning tasks, repeatability of 6 arcmin keeps cumulative error low. Length code 4 indicates an intermediate active stack length, and product revision 3 reflects updated winding insulation and housing features introduced during the latest manufacturing run.

The motor fastens through a 100 mm square flange that matches common IEC pilot circles. Cabling exits through an angled swivel connector, allowing convenient alignment with the surrounding machine wiring. Drive torque reaches the load through a keyed shaft, providing positive engagement with a compatible coupling. The motor has no holding brake, so the axis must be secured by the drive or an external lock when stationary. The standard 8LSA build omits reinforced bearings and an oil seal, making the unit appropriate for clean, dry areas. Its single connector and flange interface also simplify cable routing and mechanical installation in compact equipment.