8LSA55.EA030D000-1 by B & R Automation

The 8LSA55.EA030D000-1 synchronous servo motor is produced by B&R Automation as part of the 8LS Synchronous Motors series. This three-phase device converts electrical power into controlled rotary motion for positioning axes, conveyors, and other precision drives in automated machinery. Within the series, the 8LSA designation indicates the standard build without reinforced bearings, making the unit suitable for general-purpose installations that rely on flange mounting rather than foot plates.

The motor reaches a rated speed of 3000 rpm, which establishes the nominal operating speed for the connected drive system. Feedback is supplied by an Inductive EnDat encoder that operates on EnDat version 2.1 and provides absolute single-turn data with a resolution of 19/0 bits for the single-turn and multi-turn values. A flange outer dimension of 142 mm standardizes the interface to gearboxes or machine frames while supporting accurate alignment. Thermal management relies on self-cooling, free circulation, so heat is dissipated through the housing surface and surrounding air without external blowers or liquid jackets.

Electrical connections exit through an angled (swivel) connector, allowing cable routing to change direction during installation and reducing strain in compact cabinets. Torque is transferred through a smooth shaft, making the motor suitable for clamp or shrink-fit couplings instead of keyed hubs. The unit is supplied without a holding brake, so static load retention must be handled by the drive or external mechanics. It is a three-phase synchronous machine, and the encoder supports motion tasks that return to a home position after power-up. Additional features include length code 5 for the active stack, an oil-seal-free front bearing, and a mounting flange that supports straightforward alignment on automation cells.