Product Description:

The R46GSNA-R2-NS-NV-03 is a servo motor produced by Pacific Scientific as part of the R Servomotors series. In automated machinery, this motor delivers controlled rotary motion for positioning tasks, allowing drives to regulate speed and torque accurately through feedback. It is suited for packaging lines, pick-and-place axes, and similar duty cycles where precise, repeatable rotation is required. The feedback-capable design also supports stable low-speed control and repeatable indexing during frequent starts, stops, and reversals.

At a continuous stall output of 7.6 Nm, the rotor can hold load torque indefinitely without overheating, while a peak capability of 20.2 Nm supports short acceleration bursts. The motor has a 4.25-inch square frame, which simplifies mounting to gearboxes or indexers built around NEMA-style footprints. Response time is aided by a reflected inertia of 0.40 × 10⁻³ kg·m², letting drives change speed quickly without excessive current draw. Magnetic flux is generated by a rare earth samarium cobalt magnet arrangement that maintains performance at elevated temperatures. The stator uses three stacks with a total active length of 6 inches, which balances torque density with overall motor mass. This combination supports controlled acceleration and steady torque production in medium-frame motion systems.

The unit is supplied with no brake, so holding force must be provided externally when load retention is required. Primary position data come from a size 21 frameless resolver, which provides analog sine-cosine feedback that many compatible drives can decode directly. That feedback format supports stable commutation and smooth speed regulation across the operating range. The motor also has no shaft seal, so it is best used in clean, dry environments or with external sealing where contaminants are present. Standard winding impedance keeps phase resistance and inductance within the nominal tuning range of matching drives.