8LSN44.R0030D100-0 by B & R Automation

B & R Automation supplies the 8LSN44.R0030D100-0 as part of the 8LS Synchronous Motors series. The unit is a three-phase servo motor intended for positioning and speed-controlled duties in automated machinery where compact flange mounting is required. Its electrical design allows the motor to pair with B & R inverters so axes on packaging lines, pick-and-place gantries, and transfer stations can be driven with consistent torque and repeatable motion.

The motor has a nominal speed of 3000 rpm, which matches the operating range of most mid-frame servo inverters while maintaining constant torque up to the knee point of the torque-speed curve. Rotor temperature is managed by a self-cooling housing, so thermal energy is dissipated without forced air or liquid circuits. Position feedback is delivered by a Resolver, an analog device that tolerates electrical noise and high vibration. The mounting interface follows a 100 mm flange pattern, allowing the motor to bolt directly to standard ISO adapters without extra brackets. Power and feedback conductors exit through an angled connection, and the swivel design lets the cable outlet turn to relieve strain in tight cabinets.

When precise start-stop accuracy is needed, the motor's backlash is limited to 10 arcmin, so commanded positions can be reached with minimal mechanical error. The shaft is machined with a key, enabling direct coupling to gears or pulleys without relying on friction-locking devices. The motor has no holding brake, so vertical axes must use an external brake. Its electromagnetic circuit is a three-phase synchronous type, which supports constant torque per electrical cycle and allows digital current loops to regulate motion tightly. Length code 4 corresponds to the stack height, and the standard configuration ships without an oil seal for dry, clean environments.