8LSN57.EA022D100-0 B & R Automation
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The B & R Automation 8LSN57.EA022D100-0 is a three-phase synchronous motor from the 8LS Synchronous Motors series and features a flange dimension of 142 mm. It operates with a rated speed of 2200 rpm and utilizes self-cooling with an increased mass moment of inertia. The motor is equipped with an inductive EnDat 2.1 encoder and a shaft end with key, and it does not include a holding brake or oil seal.
Internal Product Review
The 8LSN57.EA022D100-0 is a B & R Automation three-phase synchronous motor with self-cooling and a mounting flange. Inductive EnDat feedback with EnDat 2.1 gives this motor strong positioning capability and clean control integration. A rated speed of 2200 rpm and a keyed shaft make this model a dependable choice for precise servo motion.
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Product Description:
The 8LSN57.EA022D100-0 synchronous motor is produced by B & R Automation and belongs to the 8LS Synchronous Motors series. This 8LSN unit is a three-phase machine built for precise torque delivery in industrial automation systems such as packaging stations, pick-and-place axes, and material conveyors. It has a mounting flange interface that simplifies rigid attachment to gearboxes or machine frames. Its mechanical design supports high positional accuracy when the motor is connected to a compatible servo drive. The permanent synchronization between the rotor and the commanded electrical frequency also supports stable motion during repetitive operating cycles.
The motor operates at a rated speed of 2200 rpm, providing moderate rotational velocity for mid-range load cycles. Its three-phase synchronous motor design produces electromagnetic torque without rotor slip, so shaft speed remains synchronized with the commanded frequency. The square mounting face measures 142 mm across the flange, providing a consistent footprint for compatible gearheads. Heat is removed through self-cooling, eliminating the need for a separate fan or liquid-cooling circuit. The increased mass moment of inertia helps damp speed fluctuations during indexing. Position feedback is delivered by an inductive EnDat encoder, and its 19-bit single-turn resolution permits fine interpolation for accurate closed-loop control.
The encoder communicates through EnDat 2.1, allowing fast transmission of absolute position data during single-turn operation. Power and feedback conductors exit through an angled swivel connector that permits flexible cable routing in tight enclosures. The motor is supplied in a standard configuration with length code 7. A shaft end with a key provides positive torque transfer to pulleys or rigid couplings, reducing the risk of rotational movement between the shaft and the attached component. The motor has no holding brake, so an external clamping device or drive-applied torque is required when a stationary load must be retained. It also has no internal oil seal, so suitable external protection should be used where oil, moisture, or other contaminants could reach the shaft opening.
