R33HENC-TS-NG-NV-00 Pacific Scientific
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The Pacific Scientific R33HENC-TS-NG-NV-00 is a servo motor from the R Servomotors series with a frame size of 3.25 inches square and a stack length of 3 inches. It features a continuous stall torque of 2.5 Nm, peak torque of 6.54 Nm, and a rated speed of 6000 RPM with a high-speed winding type. The motor uses rare earth samarium cobalt magnets and provides both Tachsyn primary feedback and a 1024 ppr encoder as secondary feedback.
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Product Description:
The R33HENC-TS-NG-NV-00 is a servo motor produced by Pacific Scientific for the R Servomotors series. It is intended to deliver closed-loop rotary motion for automated machinery, pairing with a drive that reads its feedback devices to regulate speed and torque in real time. The motor suits rapid-cycle positioning tasks where its compact dimensions and low rotor inertia help shorten indexing times. Its feedback arrangement supports responsive control during repeated starts, stops, and direction changes.
This model can hold a continuous load of 2.5 Nm at zero speed without overheating, while a peak capacity of 6.54 Nm covers acceleration surges. A rated mechanical velocity of 6000 rpm matches the high-speed winding, providing a broad operating range before field weakening is required. The rotor inertia is 0.093 kg·m² × 10⁻³, which limits stored energy during reversals and improves servo responsiveness. The magnetic circuit uses rare-earth samarium-cobalt magnets, increasing flux density so the motor can produce its rated torque from a compact frame. No holding brake is fitted, so static load retention must be provided by the drive or an external mechanism. The C-style housing surrounds the lamination stack, and its English mounting interfaces align with inch-pattern gearboxes and brackets.
A 3-inch stack provides the active iron depth needed to support continuous torque, while the overall footprint remains within a 3.25-inch-square frame for compatibility with compact mounting arrangements. The motor uses a high-speed winding for processes that require high shaft speeds under moderate loads. Primary velocity feedback is supplied by a Tachsyn resolver for analog speed loops. Secondary feedback comes from a 1024 ppr encoder with a line-driver output that supports precise digital positioning. The motor is built without a shaft seal, so installations exposed to fluid splashes require an external barrier. The housing provides a standard conduit entry for routing the motor and feedback connections.
