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R43GENA-R2-NS-NV-02 Pacific Scientific

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Internal Product Review

The R43GENA-R2-NS-NV-02 is a Pacific Scientific servo motor with a standard housing style and rare-earth samarium cobalt magnets. A continuous stall torque of 3.9 Nm paired with a rated speed of 1500 RPM supports smooth, controlled performance in demanding servo axes. Frameless resolver feedback adds dependable position sensing, making the model a strong choice for precise motion applications.

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Product Description:

The R43GENA-R2-NS-NV-02 is manufactured by Pacific Scientific and belongs to the R Servomotors series. As an AC servo motor, it converts electrical energy into tightly regulated shaft torque and speed for industrial automation tasks such as coordinated material handling or light machining. Used with a matched drive, it provides closed-loop position, velocity, and torque control within multi-axis systems.

This motor delivers a continuous stall torque of 3.9 Nm, giving machinery a steady holding capacity without overheating. Short bursts can reach a peak torque of 10.4 Nm, allowing rapid acceleration from rest. At its rated speed of 1500 rpm, the shaft can sustain commanded motion while remaining within thermal limits. The rotor’s reflected inertia is 0.22 kg·m² × 10⁻³, so drive tuning can achieve quick dynamic responses without excessive overshoot. To maximize magnetic flux in a compact envelope, the stator uses rare-earth samarium-cobalt magnets that resist demagnetization at elevated temperatures.

A frame that measures 4.25 inches square follows English mounting conventions for direct coupling to gearboxes or brackets. Position feedback comes from a frameless resolver of the transmitter type in size 21, providing analog sine-cosine signals for precise drive commutation. No secondary feedback device is included. The laminated magnetic stack is 3 inches long, providing the active iron length needed to support the listed torque ratings. The motor has no brake, so holding torque must be supplied electrically or by external mechanical components. It also has no shaft seal, which limits its use to clean environments unless additional sealing is provided. The housing style and winding selection are both standard, allowing the motor to fit installations that use the corresponding frame and electrical configuration.

Continuous Stall Torque
3.9 Nm
Frame Size
4.25" Square
Holding Brake
No brake / Factory preassigned
Housing Style
Standard
Inertia
0.22 kgm²x10⁻³
Magnet Material
Rare earth (samarium cobalt)
Mounting Type
English
Peak Torque
10.4 Nm
Primary Feedback
Frameless resolver, transmitter type, size 21
Product Type
Servo Motor
Rated Speed (RPM)
1500
Secondary Feedback
No secondary
Shaft Seal
No shaft seal
Stack Length
3 inches
Winding Type
Standard

Frequently Asked Questions about R43GENA-R2-NS-NV-02:

Q: What is the continuous stall torque of the R43GENA-R2-NS-NV-02 servomotor?

A: The R43GENA-R2-NS-NV-02 servomotor provides a continuous stall torque of 3.9 Nm.

Q: What is the peak torque rating of the R43GENA-R2-NS-NV-02 motor?

A: This model delivers a peak torque of 10.4 Nm for demanding motion requirements.

Q: What magnet material is used in the R43GENA-R2-NS-NV-02 servomotor?

A: A rare earth samarium cobalt magnet is used as the magnet material in this servomotor.

Q: What kind of primary feedback does the R43GENA-R2-NS-NV-02 provide?

A: The primary feedback device is a frameless resolver, transmitter type, size 21.

Q: Is a holding brake included with the R43GENA-R2-NS-NV-02 servomotor?

A: A holding brake is not included in the configuration of this servomotor.

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