R33SSNC-NS-NV-02 Pacific Scientific
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The Pacific Scientific R33SSNC-NS-NV-02 servo motor is part of the R Servomotors series and features a continuous stall torque of 2.5 Nm with a peak torque of 6.54 Nm. This servo motor uses rare earth samarium cobalt magnets, has a frame size of 3.25 inches square, and a stack length of 3 inches.
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Product Description:
The R33SSNC-NS-NV-02 is a brushless servo motor built by Pacific Scientific for the R Servomotors series. Units in this line are intended for integrated motion platforms where rapid acceleration, tight synchronization, and repeatable positioning are required. When paired with a digital drive, the motor converts command currents into controlled rotary force, allowing machine tools, indexing tables, and conveyor sections to adjust speed or stop at programmed angles within automated assembly cells.
Under continuous stall conditions, the rotor can deliver 2.5 Nm without exceeding the winding temperature limit, providing static holding or low-speed feed force for extended periods. For rapid indexing moves, the motor tolerates a peak load of 6.54 Nm during short duty cycles. The reflected load that the amplifier must overcome is influenced by the rotor inertia of 0.093 × 10⁻³ kg·m²; this low inertia supports fast reversals while helping minimize overshoot. A 3.25-inch square frame allows the motor to fit compact mechanical packages and align with compatible gearheads. These characteristics support responsive speed changes and accurate positioning under varying machine loads.
The magnetic stack has a length of 3 inches, providing enough active iron volume to meet the rated torque while keeping the overall motor length moderate for tight enclosures. A Housing Style C enclosure uses a smooth, round body with end-bell pilot diameters, simplifying tube-frame mounting and promoting airflow over the stator. High-energy rare-earth samarium-cobalt magnets resist demagnetization at elevated temperatures, allowing the motor to maintain its output through repeated thermal cycles. The motor is supplied without a holding brake, so an external mechanical lock is required when axial loads must remain restrained during a loss of power. Drive-applied torque may hold the shaft between operating cycles while the control system remains energized.
