8LSA75.E3030D104-0 by B & R Automation

The 8LSA75.E3030D104-0 is a three-phase synchronous motor manufactured by B&R Automation as part of the 8LS Synchronous Motors series. Designed for closed-loop servo drive systems, the unit supplies torque for axes that require accurate speed and position control in industrial automation equipment such as pick-and-place modules and indexing tables. By integrating into B&R drive chains, the motor delivers consistent dynamic response while occupying the standardized 8LS mechanical envelope.

The motor's nominal shaft velocity is 3000 rpm, which indicates the maximum continuous speed attainable without exceeding thermal limits. A flange dimension of 190 mm establishes the mounting interface, allowing direct coupling to gearboxes or frames that share this bolt circle. Heat is removed through self-cooling with free air circulation, so no external blower or liquid circuit is required. Power and feedback leads exit through an angled swivel connection that helps reduce cable strain in tight cabinets, and the interface uses a rugged connector for secure attachment. The internal designation 8LSA distinguishes this unit within the series.

The motor uses a mounting flange for installation, and the shaft end is machined with a key so torque can be transferred to standard couplings without additional tooling. The motor has Length code 5, which indicates the active stack length and influences continuous torque output. A reinforced A-side bearing supports higher radial forces, making the motor suitable for belt-driven loads. The design omits a holding brake, so position maintenance must be realized through drive current or external locking devices, and no oil seal is fitted, restricting use to clean, dry zones. The three-phase synchronous architecture is suited to precision motion applications.