8LSA43.R0045D000-0 by B & R Automation

B&R Automation manufactures the 8LSA43.R0045D000-0 as part of its 8LS Synchronous Motors series. This three-phase servo motor is selected for positioning axes, indexing stations, and feed rollers that require consistent speed regulation and accurate torque delivery. In automated lines, it converts electrical energy into controlled mechanical rotation, allowing motion controllers to synchronize conveyors, gantries, and tooling without mechanical gear reduction stages.

The motor is a three-phase synchronous unit, a topology that keeps rotor speed in strict proportion to the stator field and supports deterministic motion profiles. Its nominal speed reaches 4500 rpm, providing headroom for high-cycle applications before field weakening is needed. Heat is removed through self-cooling with free circulation, so the housing relies on ambient airflow rather than external blowers or liquid jackets. The motor has a square mounting face with a 100 mm IEC flange diameter, and Length Code 3 places the body in the medium size range within the 8LSA family. Position feedback is delivered by a resolver, enabling analog angle detection in rugged environments. The configuration is standard without reinforced bearings, and the mounting flange is included for direct attachment to machinery.

Power and signal connections exit through an angled swivel interface, letting the cable bundle rotate to relieve strain inside compact cabinets. The mating hardware is a keyed connector, so no junction box is required. The motor uses a smooth shaft, which eliminates key stress concentrations and matches clamp or friction couplings. Holding torque must be managed externally because a brake is not installed, and lubrication management is simplified because no oil seal is fitted. Repeatability is maintained within 10 arcmin, supporting index accuracy for pick-and-place heads.