8LSA66.EB045D000-1 by B & R Automation

The 8LSA66.EB045D000-1 is a three-phase synchronous motor manufactured by B&R Automation for the 8LS Synchronous Motors series. It delivers controlled torque and speed to positioning axes, conveyors, and spindles used across industrial automation lines, acting as the primary rotary element within closed-loop motion systems. This motor is intended for applications that require repeatable rotary motion and accurate response to drive commands during continuous machine operation.

Its rated speed reaches 4500 rpm, enabling high-cycle operation without field weakening. A flange dimension of 190 mm sets the mounting envelope and aligns the stator housing with standard machine frames. The motor uses self-cooling with free circulation, so ambient air moves along the housing fins and no external blower is required. Because airflow is unrestricted, the frame can be installed in any orientation without thermal derating. Position feedback is generated by an inductive EnDat encoder, which delivers stable signals even in high-vibration areas. A smooth shaft output simplifies coupling to compression-fit hubs and eliminates keyway stress, while the length code 6 body, single plug connector, mounting flange, and standard 8LSA build complete the assembly without reinforced bearings.

For absolute feedback, the encoder provides a multi-turn counter with 4096 revolutions, paired with a resolution of 19/12 bits for single-turn and multi-turn data. Communication follows EnDat version 2.1 and is carried through the connector so cables exit the housing in an angled swivel orientation that relieves strain inside compact enclosures. The motor does not include a holding brake, so static load retention must be provided by the drive or by external mechanical means. The absence of an oil seal reduces friction at the shaft exit. The A designation indicates a standard internal design without reinforced bearings, which suits dynamic duty cycles.