8LVA33.R0021D100-0 by B & R Automation

The 8LVA33.R0021D100-0 is a three-phase synchronous servo motor manufactured by B&R Automation as part of the 8LVA Three Phase Synchronous Motors series. It delivers closed-loop rotary motion for machine tools, packaging stations, and other positioning axes, while remaining mechanically compatible with the 8LV Servo Motor product series used across the same automation platform. The motor is intended for closed-loop axis control in applications where the drive continuously adjusts current to maintain commanded speed and position.

The motor's positioning repeatability is held to 10 angular minutes, allowing fine alignment of moving elements in coordinated multi-axis tasks. For wiring, feedback signals and motor power use separate encoder and power connections, which helps reduce electrical noise between the current-carrying stator lines and the feedback circuit. Fast installation is helped by a built-in swivel double angular connector that can be turned to the desired cable direction after the motor is mounted. Thermal losses are removed through self-cooling, so external blowers or liquid plates are unnecessary in standard ambient conditions. Rotor position is detected by a resolver; this electromagnetic transducer provides robust angle feedback for commutation and motion control without relying on optical sensing.

There is no holding brake, so a stopped load must be secured by drive torque or an external clamp. A compact envelope is achieved with motor length code 3, paired with motor size class 3 for consistent fit within the 8LVA range. Continuous operation tops out at a nominal speed of 2100 rpm, giving moderate base frequency demands on the inverter. A keyed shaft provides positive torque transfer into couplings or pulleys, and the feedback interface matches the RE-15-1-J04 resolver model. The housing is supplied without an oil seal, so the installation site must exclude lubricating spray or use an external seal if required.