8LSA43.E3045D000-0 B & R Automation
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The B & R Automation 8LSA43.E3045D000-0 is a three-phase synchronous motor in the 8LS Synchronous Motors series. It features a standard configuration, self-cooling with free circulation, and provides a rated speed of 4500 rpm. The motor uses a 100 mm flange for mounting and has an angled connector for connection.
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Product Description:
The 8LSA43.E3045D000-0 is a three-phase synchronous servo motor manufactured by B&R Automation for the 8LS Synchronous Motors series. Delivered under the internal designation 8LSA with length code 3, the unit serves as a compact rotary actuator for positioning and velocity control in automated assembly cells, conveyors, and packaging lines. When paired with a compatible drive module, it converts electrical energy into precisely controlled motion for industrial applications that require consistent cycle times and repeatable movement. Its permanent-magnet rotor follows the rotating stator field without slip, supporting accurate speed regulation when the mechanical load changes.
The motor reaches a rated speed of 4500 rpm, enabling rapid traverses while supporting fine incremental moves. A self-cooling design with free air circulation removes heat through natural airflow, so an auxiliary fan is unnecessary under suitable operating conditions. The mounting interface uses a 100 mm flange, allowing the motor to fit compatible machine structures and coupling arrangements. Power and feedback cables exit through an angled swivel connection, which reduces cable-bending stress when clearance behind the machine frame is limited. The connection can be oriented to simplify cable routing without forcing conductors into tight bends near the motor housing. The motor can provide controlled torque across positioning, acceleration, and constant-speed operating phases when used with an appropriately configured servo drive.
The motor has no holding brake, so an external locking mechanism is required when a vertical load must remain stationary after drive power is removed. Its smooth shaft supports low-backlash connections through clamping hubs or shrink discs rather than keyed couplings. The motor uses standard bearings without reinforcement, making it suitable for moderate radial loads instead of heavy belt-driven applications. An oil seal is not fitted at the output end, so equipment exposed to dust, coolant, or lubricant should include an external sealing arrangement that protects the bearing area. Proper shaft alignment helps prevent excessive bearing loads and supports stable operation when the motor is connected directly to a gearbox, pulley, or machine coupling.
