8LSA35.R0045D000-0 B & R Automation
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The B & R Automation 8LSA35.R0045D000-0 is a three-phase synchronous motor in the 8LS Synchronous Motors series. It features a flange dimension of 91.3 mm and a rated speed of 4500 rpm. The motor uses a resolver for encoder technology and has self-cooling with free circulation.
Internal Product Review
The 8LSA35.R0045D000-0 is a B & R Automation three-phase synchronous motor with self-cooling through free circulation. Resolver feedback and 10 arcmin precision support stable positioning and dependable motion control. A 4500 rpm rated speed makes the design especially appealing for fast, efficient servo applications.
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Product Description:
The 8LSA35.R0045D000-0 is a three-phase synchronous motor manufactured by B & R Automation and supplied under the 8LS Synchronous Motors series. Designed as a compact drive element for automated machinery, it delivers rotary motion to positioning tables, conveyors, and tooling spindles where precise speed regulation is required. When paired with a compatible servo drive, its resolver-based feedback supports closed-loop control in packaging equipment, electronics assembly systems, and general-purpose material-handling stations.
At a rated speed of 4500 rpm, the rotor provides the velocity needed for typical servo duty cycles while maintaining consistent torque control. Heat is removed through a self-cooling design with free air circulation, so no external fan or liquid-cooling circuit is required. Position feedback is generated by a resolver, which supplies analog angle signals that the drive converts into position and speed data. Power and signal leads exit the housing through an angled swivel connector, reducing cable strain in compact installations and allowing the wiring to run parallel to the machine frame. The mounting interface has a 91.3 mm square flange that provides a stable connection point for compatible gearboxes, machine plates, or coupling assemblies.
A smooth shaft transmits torque without a keyway, permitting the use of clamping, friction-fit, or shrink-fit attachments that help minimize mechanical backlash. The motor provides 10 arcmin of positional precision, supporting indexing and positioning tasks that require moderate accuracy. Its length code 5 indicates a motor stack proportion that balances continuous torque capability with overall housing length for space-constrained installations. The housing includes a mounting flange for direct attachment to the machine structure. This standard 8LSA configuration omits a reinforced bearing, holding brake, and oil seal, which reduces rotating inertia and overall mass. Loads that must remain stationary after power is removed require an external brake or another suitable holding mechanism.
