8LSA55.EA022D000-3 by B & R Automation

The 8LSA55.EA022D000-3 is a three-phase synchronous motor manufactured by B & R Automation within the 8LS Synchronous Motors series. It is classified as an 8LSA configuration, meaning a standard rotor without reinforced bearings, and is intended to drive automated axes that need precise speed regulation in medium-torque ranges. In industrial automation systems, this motor supplies continuous rotary motion for positioning tables, packaging lines, and material-handling modules where compact size and flange mounting simplify mechanical integration.

The motor operates at a rated speed of 2200 rpm, which is its maximum continuous mechanical output speed when the winding temperature remains within permissible limits. A flange dimension of 142 mm sets the face size that mates to the machine frame and establishes the bolt circle for rigid mounting. Heat is removed through self-cooling with free air circulation, eliminating the need for external blowers or liquid jackets in most duty cycles. Position feedback is supplied by an inductive EnDat 2.1 encoder, allowing absolute position reporting and automatic parameter upload to the drive. Power and feedback are routed through an angled connection that can swivel, reducing cable stress in tight enclosures and aiding strain relief.

The rotor feedback device supports a single-turn range and offers 19-bit resolution, allowing repeatable homing without multi-turn data storage. A smooth shaft end avoids keyways, favoring clamp couplings that minimize runout at higher speeds. Because there is no reinforced bearing, the permissible radial and axial loads align with standard duty ratings, and the absence of an oil seal means the shaft must operate in clean, dry environments. Installation is via a mounting flange, and the connector housing uses product revision 3 with length code 5.