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R65HENA-TS-M2-NV-00 Pacific Scientific

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The Pacific Scientific R65HENA-TS-M2-NV-00 is a servo motor from the R Servomotors series with a frame size of 5.75 inches square and a stack length of 5 inches. It provides a continuous stall torque of 13.6 Nm, peak torque of 33.3 Nm, and features high speed windings and rare earth samarium cobalt magnets. The motor uses a Tachsyn for primary feedback and supports English mounting.

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Product Description:

The R65HENA-TS-M2-NV-00 servo motor is manufactured by Pacific Scientific and belongs to the R Servomotors series. It delivers electronically commutated rotary power for precise positioning and speed regulation in automated equipment. The unit is built in a standard housing and uses an English mounting interface, allowing direct installation on inch-pattern adapter plates and machinery frames without additional brackets.

Under continuous load, the motor sustains 13.6 Nm of torque, which is the maximum torque it can maintain indefinitely without thermal derating. A 5.75-inch square frame sets the mounting footprint and provides surface area for heat dissipation. The rotor’s moment of inertia is 1.26 × 10⁻³ kg·m², enabling responsive acceleration while limiting overshoot on loads with light to medium inertia. The rated mechanical speed reaches 4300 rpm, so the shaft can follow high-velocity command profiles when the drive supplies adequate voltage and frequency. This speed range is achieved with a high-speed winding that has low inductance and permits rapid current changes. Internally, the magnetic stack measures 5 inches in length, adding active material for torque generation while keeping the overall motor size compact.

For transient demands, the shaft can produce 33.3 Nm of peak torque, providing additional capacity for acceleration spikes and brief overloads. Flux density is provided by rare-earth samarium-cobalt magnets, which retain magnetization at elevated temperatures and contribute to high torque density. Motion control loops receive analog position and velocity data from a Tachsyn resolver mounted on the rear end bell. The motor is supplied without a holding brake and has a shaft without a shaft seal, so external mechanisms are required when load retention or contamination protection is necessary.

Continuous Stall Torque
13.6 Nm
Frame Size
5.75" Square
Holding Brake
No brake / Factory preassigned
Housing Style
Standard
Inertia
1.26 kgm²x10⁻³
Magnet Material
Rare earth (samarium cobalt)
Mounting Type
English
Peak Torque
33.3 Nm
Primary Feedback
Tachsyn
Product Type
Servo Motor
Rated Speed (RPM)
4300
Shaft Seal
No shaft seal
Stack Length
5 inches
Winding Type
High Speed

Frequently Asked Questions about R65HENA-TS-M2-NV-00:

Q: What is the continuous stall torque rating for the R65HENA-TS-M2-NV-00 servomotor?

A: The R65HENA-TS-M2-NV-00 provides a continuous stall torque of 13.6 Nm.

Q: What is the stack length of the R65HENA-TS-M2-NV-00 servomotor?

A: This model features a stack length of 5 inches.

Q: What magnet material is used in the construction of the R65HENA-TS-M2-NV-00?

A: The R65HENA-TS-M2-NV-00 uses rare earth samarium cobalt magnets.

Q: Does the R65HENA-TS-M2-NV-00 come with a shaft seal?

A: This servomotor does not include a shaft seal.

Q: What type of primary feedback does the R65HENA-TS-M2-NV-00 use?

A: The primary feedback on this model is provided by a Tachsyn device.


Internal Product Review

  • ‘‘The R65HENA-TS-M2-NV-00 is a Pacific Scientific servo motor with a high-speed winding and Tachsyn primary feedback. Continuous stall torque of 13.6 Nm and peak torque of 33.3 Nm support strong dynamic response for demanding motion applications.’’

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