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F43GENA-R2-MN-NV-00 Pacific Scientific

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The Pacific Scientific F43GENA-R2-MN-NV-00 is a brushless servo motor from the F Servomotors series. This standard configuration motor has a continuous stall torque of 32 lb-in, peak torque of 81 lb-in, and uses ferrite magnets with a 4.25 inch frame width. It features an IP65 protection rating, frameless resolver feedback, and weighs 16.6 pounds.

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Product Description:

The F43GENA-R2-MN-NV-00 is a brushless servo motor manufactured by Pacific Scientific within the F Servomotors series. It delivers commanded torque and speed to automated conveyors, pick-and-place heads, and auxiliary CNC axes, converting electrical energy into tightly regulated mechanical motion. A frameless resolver mounted on the shaft supplies absolute position data to the drive, allowing closed-loop control to correct load disturbances without the mechanical limitations of an encoder coupling. The motor follows a standard mechanical configuration that matches the inch-based mounting interfaces used throughout North American equipment.

The motor has a continuous stall torque of 32 lb-in, providing a baseline for static holding and low-speed feed duties. During rapid indexing, the torque can reach a peak of 81 lb-in for short periods without demagnetizing the rotor. A frame width of 4.25 inches balances torque density against envelope size, allowing the motor to fit midrange gearboxes and timing-belt pulleys. Current-to-torque conversion is represented by a torque constant of 10.8 lb-in/A, which allows shaft output to be calculated from the commanded current. Back electromotive force increases with speed at 128 V/krpm, so the inverter must accommodate the voltage generated during regenerative deceleration.

The housing has an IP65 protection rating, sealing the internal windings against dust and water jets in demanding industrial areas. The motor does not include a shaft seal, so the connected equipment must account for exposure at the shaft interface. The rotor uses ferrite magnets with a magnet stack length index of 3, providing moderate inertia within the available frame. The motor has a mass of 16.6 lb, which must be considered when selecting mounting hardware and supporting structures. It is supplied without a holding brake, so stationary loads must be retained by drive-applied torque or an external locking mechanism when required. Its inch-based shaft dimensions allow compatible couplings to be installed without metric adapters.

Continuous Stall Torque (lb-in)
32
Feedback Type
Frameless resolver, transmitter type, size 21
Frame Width
4.25 inch
Holding Brake
No Brake
Magnet Material
Ferrite
Magnet Stack Length
3
Motor Configuration
Standard
Motor Weight (lbs)
16.6
Mounting/Shaft standard
English
Peak Torque (lb-in)
81
Product Type
Brushless Servo Motor
Protection Rating
IP65
Sealing
No shaft seal
Torque Constant (lb-in./A)
10.8
Voltage Constant (V/Krpm)
128

Frequently Asked Questions about F43GENA-R2-MN-NV-00:

Q: What is the continuous stall torque rating of the F43GENA-R2-MN-NV-00 servomotor?

A: This motor provides a continuous stall torque of 32 lb-in, enabling sustained force for demanding servo applications.

Q: What type of feedback device is included in the F43GENA-R2-MN-NV-00 servomotor?

A: A frameless resolver, transmitter type, size 21, is used for feedback in this model.

Q: What is the frame width of the F43GENA-R2-MN-NV-00 motor?

A: The F43GENA-R2-MN-NV-00 has a frame width of 4.25 inches, offering compatibility with standard mounting systems.

Q: What is the peak torque capability of the F43GENA-R2-MN-NV-00 servomotor?

A: With a peak torque of 81 lb-in, this motor can handle significant short-term torque demands.

Q: What level of environmental protection does the F43GENA-R2-MN-NV-00 offer?

A: The F43GENA-R2-MN-NV-00 carries an IP65 protection rating, ensuring resistance to dust and low-pressure water jets.


Internal Product Review

  • ‘‘F43GENA-R2-MN-NV-00 is a Pacific Scientific brushless servo motor with IP65 protection, well suited for demanding motion-control service. Continuous stall torque of 32 lb-in and peak torque of 81 lb-in give this unit a strong operating range for dynamic positioning. Frameless resolver feedback and a 10.8 lb-in/A torque constant make this motor an efficient, technically sound choice.’’

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