R32SSNA-HS-NS-NV-03 Pacific Scientific
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The Pacific Scientific R32SSNA-HS-NS-NV-03 is a servo motor from the R Servomotors series featuring a continuous stall torque of 1.7 Nm and a peak torque of 4.40 Nm. It has a frame size of 3.25 inches square, uses rare earth samarium cobalt magnets, and includes Hall sensors for primary feedback. The motor comes with a standard housing style, has an inertia of 0.071 kgm²x10⁻³, and a 2 inch stack length.
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Product Description:
The R32SSNA-HS-NS-NV-03 is a servo motor manufactured by Pacific Scientific for the R Servomotors series. With its electrically commutated architecture, this unit converts drive current into precise rotary motion for automated pick-and-place modules, indexing tables, and similar closed-loop axes. The motor delivers consistent torque while maintaining tight position accuracy, allowing plant controllers to synchronize mechanical loads with minimal latency. It occupies a compact square flange footprint that fits within low-inertia mechanisms where rapid response and efficient use of space are priorities.
At stall, the motor can sustain 1.7 Nm of continuous torque without thermal overload, providing a baseline for static holding or slow-speed travel. During acceleration, it supports a peak output of 4.40 Nm, providing additional torque for overcoming friction or momentary load spikes. Rotor inertia is 0.071 kg·m² × 10⁻³, a low value that helps the drive achieve fast velocity changes with limited regenerative energy. The 3.25-inch square mounting frame simplifies alignment with NEMA-compatible gearboxes and brackets. High-energy rare-earth samarium-cobalt magnets provide stable magnetic flux at elevated temperatures, sustaining torque density while resisting demagnetization during dynamic duty cycles.
The motor uses a standard housing with an effective magnetic stack length of 2 inches, providing the stated torque without increasing the housing width. The motor has no shaft seal, so it should be installed where contamination is controlled or an external seal is provided. Primary commutation feedback is delivered by Hall sensors, enabling six-step switching with compatible drive stages. The motor is supplied without a holding brake, so an external clamp is required when power-off restraint is necessary. No secondary feedback device is included for redundant position reporting.
