8LSA46.SB060S300-3 by B & R Automation

The 8LSA46.SB060S300-3 is a three-phase synchronous motor manufactured by B & R Automation in the 8LS Synchronous Motors series. The designation 8LSA identifies the mechanical configuration, and length code 6 indicates the active stack length selected for mid-range torque demands. A mounting flange provides direct face mounting, while a keyed shaft end simplifies coupling alignment. Integrated optical EnDat feedback supplies absolute position data to the drive controller, supporting closed-loop motion control in automated assembly cells and packaging stations where repeatable axis positioning and fast cycle changes are required.

The motor delivers a rated speed of 6000 rpm, making it suitable for high-cycle positioning tasks that require short move times and stable speed control. A flange dimension of 100 mm sets the centering diameter and bolt circle used with common gearbox interfaces. Encoder resolution reaches 19/12 bits for single-turn and multi-turn tracking, giving the controller fine velocity and position granularity during indexing and interpolation. Communication runs on EnDat version 2.2, which carries position values, diagnostics, and parameter memory over the same line. Power conductors and encoder signals share one hybrid lead through the single-cable solution, and the connector hardware permits all terminations with a single plug-in action, reducing panel wiring and limiting extra connection points inside the machine.

A multi-turn counter keeps track of 4096 revolutions, eliminating the need for homing after power restoration in many axis applications. Heat is removed by self-cooling with free air circulation, so no external fan or liquid circuit is required. A standard holding brake secures the load during standstill or emergency shutdown. The 8LSA standard configuration omits reinforced bearings and any oil seal, which keeps the shaft arrangement simple and reduces rotating friction. The motor is built as product revision 3.