8LSA57.EB022DC04-3 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 8LSA57.EB022DC04-3 is a three-phase synchronous motor from the 8LS Synchronous Motors series with a reinforced A-side bearing and a smooth shaft end. It features a flange dimension of 142 mm, inductive EnDat encoder technology with multi-turn capability of 4096 revolutions, and a special-purpose holding brake. The motor is self-cooled by free air circulation and has an angled connector for wiring.
Internal Product Review
The 8LSA57.EB022DC04-3 is a B & R Automation three-phase synchronous motor with self-cooling free circulation. Inductive EnDat feedback and multi-turn capability to 4096 revs support accurate position handling in demanding motion systems. A special-purpose holding brake and 2200 rpm rated speed make this motor a strong choice for dynamic servo applications.
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Product Description:
The 8LSA57.EB022DC04-3 is a three-phase synchronous motor developed by B&R Automation for the 8LS Synchronous Motors series. The 8LSA designation indicates a reinforced A-side bearing that supports higher radial loads, while length code 7 identifies the active stator stack within the shared housing. Product revision 3 maintains external compatibility with earlier units. When paired with a suitable servo drive, the motor provides closed-loop rotary motion for positioning axes, indexing tables, and other automated equipment. Its synchronous design supports accurate torque and speed regulation as operating loads change.
During continuous operation at a rated speed of 2200 rpm, heat is removed by a self-cooling system with freely circulating air, so no external fan is required. A mounting flange with a 142 mm square pattern allows direct attachment to compatible gearboxes or machine frames. Position data is generated by an inductive EnDat encoder that operates with the EnDat 2.1 interface. The encoder provides 19 bits of single-turn resolution and 12 bits of multi-turn resolution, allowing the controller to retain precise shaft position information across multiple revolutions. The housing accepts power and feedback lines through a sealed connector that protects the electrical contacts from common industrial contaminants. The connector arrangement also keeps the conductors organized near the motor housing and reduces interference with surrounding machine components. The motor does not have an oil seal, so the shaft area should remain clean and protected from liquids.
A special-purpose holding brake secures the rotor when power is removed, preventing unintended movement on vertical or load-sensitive axes. The motor wiring exits through an angled swivel connection that can be rotated during installation to reduce cable strain. This adjustable cable entry helps route the power and feedback lines around nearby brackets, guards, or machine framing. Torque is transmitted through a smooth shaft, making the motor suitable for clamp-style or shrink-fit couplings that do not require a keyway. The smooth output surface also supports concentric coupling alignment when the mating component is installed correctly. Because the shaft does not use an oil seal, the reduced contact friction is suitable for operating cycles in clean machinery.
