8LVA33.R0021D000-0 by B & R Automation

The 8LVA33.R0021D000-0 three-phase synchronous motor is manufactured by B & R Automation and belongs to the 8LVA Three Phase Synchronous Motors series. It is intended for use as a precision rotary axis in industrial automation where closed-loop speed and position control are required. Classified within the 8LV Servo Motor product line, the unit supplies torque directly to conveyors, pick-and-place heads, or spindle modules that are driven by compatible AC servo amplifiers.

This model offers a positioning accuracy of 10 angular minutes, allowing the machine controller to hold commanded angles without noticeable cumulative error. Thermal management is handled by self-cooling, so external blowers or liquid circuits are not needed. Rotor feedback is generated by a resolver; this analog sensing method resists electrical noise and provides absolute angle data after power-up. The motor's nominal operating point is 2100 rpm, which suits medium-throughput assembly or packaging equipment. The design is supplied without a holding brake; therefore, any static load retention must be provided by the drive or a mechanical lock. The motor has length code 3 and size code 3, which indicate the stator stack depth and frame cross-section. The construction omits an oil seal because the target environment is a clean, dry enclosure.

The cable interface uses separated encoder and power lines, simplifying electromagnetic compliance checks and allowing standard shielded motor cable to run beside feedback wiring. Power enters through a built-in double angular connector that can swivel, giving more freedom to orient the harness in tight cabinets. A smooth shaft end is supplied, ready for clamp couplings or press-fit pulleys when backlash must be minimized. Position feedback originates from the RE-15-1-J04 resolver model, which mates directly with the drive's analog input channel. With no oil seal and no brake, the assembly maintains low rotational drag during repeated motion.