8LVA33.R0021D200-0 by B & R Automation

B&R Automation supplies the 8LVA33.R0021D200-0 as part of its 8LVA Three Phase Synchronous Motors series. The unit is a servo-class actuator for coordinated motion in multi-axis industrial automation, where closed-loop speed and position control must remain stable under changing load. This type of motor is typically used where the drive must correct speed and position errors in real time during synchronized machine movement. The three-phase synchronous layout supports precise torque response across repeated motion cycles. Its constant running speed reaches 2100 rpm, which suits indexing, transfer, and positioning tasks that need steady motion without excessive rotor inertia.

The motor has a positioning repeatability of 10 angular minutes, which supports fine angular alignment in automated machinery. Separate feedback and power leads use separate encoder and power connections, and a built-in double angular swivel connector lets both cables leave from the same side while allowing flexible routing. This arrangement helps keep motor power conductors away from low-level feedback signals. Thermal management uses a self-cooling design, so no external fan or liquid circuit is required. Rotor position is detected by a resolver, and the integrated holding brake provides 4.0 Nm of static torque to secure the load when power is removed. The holding brake is intended for load retention at standstill rather than dynamic deceleration. The housing has no oil seal, and size code 3 with length code 3 identifies the frame geometry used for this motor.

The output shaft is a smooth shaft, which is suited to backlash-free clamping hubs. This shaft style supports friction-fit couplings that do not require a keyed connection. The embedded RE-series resolver, model RE-15-1-J04, provides analog sine-cosine signals for compatible B&R drive controllers. Because the motor uses self-ventilated cooling and has no oil seal, the installation should allow unobstructed airflow and keep the shaft area away from fluid splash or pressurized coolant.