Product Description:

The R33GENA-HS-EB-NV-00 is an AC servo motor manufactured by Pacific Scientific and included in the R Servomotors series. As a brushless rotary actuator, it converts regulated electrical power from a matched drive into controlled mechanical rotation for indexing tables, pick-and-place axes, and coordinated motion groups in automated cells. Its electromagnetic construction supports closed-loop velocity and position regulation, allowing accurate starts, stops, and speed changes in compact automation equipment. That operating style is common in packaging, assembly, and light material-handling systems where motion commands change frequently during each cycle.

The motor uses a 3.25-inch square frame, allowing it to fit legacy mounting patterns without adapter plates. Under continuous excitation, it delivers 2.5 Nm of stall torque, so the axis can maintain rated load at standstill without exceeding normal thermal limits. For short accelerations, the electromagnetic package produces 6.54 Nm of peak torque, giving additional force for rapid indexing and quick recovery from load changes. This combination of continuous and short-term torque supports smooth motion at steady load and brisk acceleration during indexing moves. The rotor has a reflected inertia of 0.093 kg·m² × 10⁻³, which helps the drive keep the servo loop responsive during speed changes. At 3000 rpm, the motor reaches its rated mechanical output while remaining within its normal operating range.

Performance consistency is supported by a rare-earth samarium cobalt magnet set, which helps maintain magnetic flux at elevated winding temperatures. Position data is supplied through Hall sensors, enabling electronic commutation when basic feedback is sufficient for the application. In systems that require finer position verification, commutation can be handled internally while higher-resolution feedback is provided elsewhere in the axis. The electromagnetic core uses a 3-inch stack length, balancing torque production with overall motor size. Because the unit has no holding brake, a stopped vertical or overhauling axis must be secured by drive torque or an external mechanical device. The motor also uses an English mounting template, a standard housing, and no shaft seal.