8LSA46.R0030D200-0 by B & R Automation

The 8LSA46.R0030D200-0 is a three-phase synchronous motor produced by B&R Automation for the 8LS Synchronous Motors series. Within an automation cell, this unit converts electrical power from a servo drive into rotational motion for positioning tasks that demand consistent speed and feedback accuracy. As a synchronous design, it supports controlled motion where the drive must regulate both torque and rotor position during repeated cycles. Rotor position is reported by a resolver, which tolerates electrical noise and elevated temperatures better than many optical encoders. This makes it suitable for indexing, transfer, and similar axis duties in automated machinery.

The motor uses a standard bearing set, so it does not include a reinforced bearing and is suited to moderate radial loads. Cabling exits through an angled swivel connector, which helps route wiring along moving machine frames without sharp bends, and the molded connector keeps the cable entry compact. The mounting face has a 100 mm flange pattern for direct attachment to machine plates or gearboxes. A standard holding brake keeps the load stationary when the drive is disabled, and heat is removed by self-cooling with free air circulation rather than by an external blower or liquid circuit.

During operation, the rotor can reach 3000 rpm, which matches many servo drive outputs used on general positioning axes. The motor has a smooth shaft end that accepts clamp or shrink couplings and avoids the stress concentrations associated with keyed designs. The feedback system maintains positional repeatability within 10 arcmin, supporting accurate motion over repeated moves. The motor also uses length code 6, includes flange mounting provision, and does not use an oil seal, so it is best installed in relatively clean environments where contaminants are limited.