8LSN55.E3030D000-0 B & R Automation
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The B & R Automation 8LSN55.E3030D000-0 is a three-phase synchronous motor from the 8LS Synchronous Motors series with a rated speed of 3000 rpm. It features a 142 mm mounting flange and uses a self-cooling design with increased mass moment of inertia. The motor comes with a smooth shaft, an angled connection direction, and does not include a holding brake or oil seal.
Internal Product Review
The 8LSN55.E3030D000-0 is a B & R Automation three-phase synchronous motor built in a standard configuration. Self-cooling with increased mass moment of inertia supports stable thermal behavior, and the angled swivel connection simplifies cable routing. A 3000 rpm rated speed makes the motor an excellent fit for precise servo applications.
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Product Description:
The 8LSN55.E3030D000-0 is a rotary servo motor manufactured by B & R Automation for the 8LS Synchronous Motors series. This model belongs to the 8LSN subgroup and is intended for precise speed and position control on packaging lines, pick-and-place gantries, and other automated axes. By converting commanded stator currents into torque, the motor acts as the primary mover in closed-loop motion systems. Its responsive acceleration and consistent velocity allow it to follow the real-time motion profiles generated by the machine controller. The synchronous design also supports accurate regulation when operating conditions or axis loads change.
The motor uses a three-phase synchronous design, which allows the rotor to follow the rotating magnetic field without slip and supports sinusoidal current control. Its rated speed of 3000 rpm supports continuous operation while allowing peak torque events within the same mechanical envelope. The unit attaches through a mounting flange with a bolt pattern suited to its 142 mm frame width, helping maintain concentric alignment with gearboxes or end effectors. Heat is dissipated through self-cooling with an increased mass moment of inertia, so the ribbed housing releases thermal losses without an auxiliary fan. The additional rotor mass helps dampen speed ripple during changes in load or commanded velocity. This cooling arrangement also reduces the need for external airflow equipment around the motor housing.
An angled connection can swivel to direct cables upward, downward, or sideways, easing cable routing in compact machine layouts. The stator stack uses length code 5, providing moderate continuous torque within the 142 mm frame. Output torque is transferred through a smooth shaft, allowing backlash-free compression couplings to be used instead of keyed hubs. The motor has no holding brake, so stationary or vertical loads must be secured through drive torque or an external locking device when required. The housing does not have an oil seal, so the installation must prevent lubricant from reaching the shaft opening. Cable routing should preserve adequate bend clearance around the angled connection and avoid placing unnecessary strain on the connector.
