8LSA55.db030s500-3 by B & R Automation

B & R Automation manufactures the 8LSA55.db030s500-3, a drive in the 8LS Synchronous Motors series. Classified as a three-phase synchronous unit, it converts controlled stator currents into precise rotor motion for indexing tables, pick-and-place axes, and coordinated conveyor segments within automated cells and packaging equipment. The model belongs to the 8LSA configuration family and supports applications that need repeatable speed control, fast positioning cycles, and a compact footprint compatible with standardized IEC mounting layouts in tight machine spaces.

The shaft can maintain a rated speed of 3000 rpm, giving the motor predictable mechanical output under nominal load and ambient conditions. Temperature rise is moderated by the self-cooling with free circulation airflow concept, which eliminates external blowers and simplifies surrounding equipment layout. A flange dimension of 142 mm establishes the pilot diameter and bolt circle, helping it match other IEC-142 motors. Power and feedback lines terminate through a single keyed connector, reducing wiring time and helping prevent phase reversal. Electromechanical energy conversion is based on a three-phase synchronous winding arrangement, so torque is transferred with minimal ripple and accurate electronic commutation.

The motor uses the standard 8LSA without a reinforced bearing configuration, with a bearing set suited for moderate radial and axial forces common in servo axes. Its overall stack size is identified by length code 5, which balances continuous torque output and motor mass. The motor is product revision 3, with updated magnet insulation and connector inserts that do not alter dimensional data. Final installation relies on a rigid mounting flange, allowing the motor to be fastened directly to gearheads, ball-screw housings, or machine frames while preserving alignment accuracy under cyclic loads.