R43HEAA-R2-NS-VS-00 Pacific Scientific
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The Pacific Scientific R43HEAA-R2-NS-VS-00 is a servo motor from the R Servomotors series with a continuous stall torque of 3.9 Nm and a peak torque of 10.4 Nm. It features a 4.25 inch square frame, high speed winding, and uses a rare earth samarium cobalt magnet. This motor has a rated speed of 3700 RPM and includes a 24V DC holding brake along with a frameless resolver transmitter type as primary feedback.
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Product Description:
The R43HEAA-R2-NS-VS-00 is a brushless servo motor produced by Pacific Scientific as part of the R Servomotors series. This motor is intended for closed-loop industrial automation tasks that require precise speed and position regulation, such as indexing tables, packaging axes, and material-handling equipment. By combining a compact frame with resolver feedback, the unit converts electrical energy from a matched drive into controlled mechanical rotation for machinery that must follow programmed motion profiles. Resolver feedback gives the connected drive continuous rotor position information, which supports accurate commutation and stable response during changing loads.
Under continuous load, the motor can hold 3.9 Nm at the shaft without overheating, providing steady torque during sustained operation. The housing measures 4.25" square, allowing the motor to fit common NEMA-frame layouts. Rotor inertia is 0.22 kg·m²×10³, which supports fast acceleration while helping the axis remain responsive during frequent speed changes. When rapid duty cycles require brief overload, the motor can produce up to 10.4 Nm of peak torque. The high-speed winding reaches a rated speed of 3700 rpm, so the motor can drive conveyor sections or similar mechanisms that need elevated surface speed without an additional gearbox.
A factory-installed 24 V DC brake keeps vertical or position-critical axes from drifting when power is removed. The rotor uses samarium cobalt rare-earth magnets, which improve thermal stability and resist demagnetization during high current peaks. A Viton shaft seal limits dust and coolant ingress at the output end, helping protect internal components in demanding environments. The laminated stack length is 3 inches, so the motor can fit into shallow machine frames while maintaining the torque and speed capability expected from this motor size.
Frequently Asked Questions about R43HEAA-R2-NS-VS-00:
Q: What is the continuous stall torque of the R43HEAA-R2-NS-VS-00 servomotor?
A: The R43HEAA-R2-NS-VS-00 servomotor provides a continuous stall torque of 3.9 Nm.
Q: Does the R43HEAA-R2-NS-VS-00 servomotor include a holding brake?
A: This model features a 24V DC holding brake for secure load retention during power off conditions.
Q: What type of magnet material is used in the R43HEAA-R2-NS-VS-00 servomotor?
A: The R43HEAA-R2-NS-VS-00 utilizes a rare earth samarium cobalt magnet material.
Q: What is the peak torque rating for the R43HEAA-R2-NS-VS-00 servomotor?
A: The peak torque output of this model is 10.4 Nm.
Q: What kind of primary feedback is integrated in the R43HEAA-R2-NS-VS-00 servomotor?
A: A frameless resolver of transmitter type, size 21, is used as the primary feedback device on this servomotor.
