8LSAA4.ee045ffgg-3 B & R Automation
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The B & R Automation 8LSAA4.ee045ffgg-3 is a three-phase synchronous motor from the 8LS Synchronous Motors series. It features a flange dimension of 70 mm and a rated speed of 4500 rpm. The motor uses a connector for connection hardware and supports self-cooling through free circulation.
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Product Description:
The 8LSAA4.ee045ffgg-3 is a servo-class synchronous motor manufactured by B & R Automation within the 8LS Synchronous Motors series. Designed as a direct-drive element for positioning axes and speed-controlled spindles, the unit converts electrical input into precise rotary motion for packaging, pick-and-place, and general machine automation tasks. Its modular design supports integration with compatible motion controllers and servo drives in coordinated automation systems. The motor can provide controlled torque and speed for applications that require accurate, repeatable movement across demanding production cycles.
The motor reaches a nominal shaft speed of 4500 rpm, allowing fast cycle times when paired with high-resolution feedback. Thermal regulation relies on self-cooling with free air circulation, so ambient airflow removes heat without external blowers or liquid cooling circuits. Electrical and feedback lines connect through a single connector, simplifying cable routing and reducing the number of separate connection points. A mounting flange forms the primary mechanical interface, and its machined face helps center the motor on a gearbox or machine frame. The square frame has a flange dimension of 70 mm, providing a compact footprint for actuators and other space-constrained installations. Adequate clearance around the housing allows natural airflow to carry heat away during operation.
The motor carries the 8LSA designation, indicating its placement within the standard 8LSA motor range. It has length code 4, which corresponds to an extended magnetic stack that supports increased continuous torque without changing the flange pattern. The motor uses a three-phase synchronous winding that supports controlled operation with a compatible servo inverter. Rotor feedback can provide the drive with the position and speed information required for closed-loop regulation. The unit is produced as product revision 3, identifying the applicable generation of this model. Its frame arrangement allows the motor to be installed in compact automation equipment while retaining access to the connector and mounting points.
