R24HMNA-R1-NS-NV-00 Pacific Scientific
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The Pacific Scientific R24HMNA-R1-NS-NV-00 is a servo motor from the R Servomotors series with a round 2.0 inch frame size and a stack length of 4 inches. It delivers a continuous stall torque of 1.1 Nm and a peak torque of 3.07 Nm, with high speed winding and a rated speed of 7700 RPM. This motor features a rare earth samarium cobalt magnet and a frameless resolver feedback system.
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Product Description:
The R24HMNA-R1-NS-NV-00 is a servo motor manufactured by Pacific Scientific for the R Servomotors series. This compact rotary unit is intended for closed-loop motion axes where precise torque and speed regulation are required to carry out repetitive motion profiles in automated machinery. Its responsive electromagnetic design supports rapid acceleration and deceleration, allowing indexing tables, miniature gantries, and electronic assembly heads to meet tight cycle-time targets without adding control complexity. The motor can be paired with a compatible servo drive that uses resolver signals to regulate torque, velocity, and position during repetitive operating cycles.
Continuous stall torque is rated at 1.1 Nm, indicating the torque that the rotor can maintain indefinitely without exceeding its thermal limit, while a peak torque capacity of 3.07 Nm supports brief acceleration bursts or position corrections. The high-speed stator winding permits a rated velocity of 7700 rpm, giving controllers a broad operating range for variable-speed applications. Rotor inertia is only 0.021 × 10⁻³ kg·m², so the system responds quickly to command changes and settles with minimal overshoot. Rare-earth magnets made from samarium cobalt maintain magnetic flux at elevated temperatures, supporting repeatable torque across extended duty cycles in multi-shift production. These magnetic and inertial properties are useful for axes that must reverse direction frequently or execute short indexing movements with limited settling time.
The motor’s round frame has a 2.0-inch outer diameter and uses a metric mounting pattern, allowing it to bolt directly to ISO flanges inside compact machines. The active stack has a length of 4 inches and sits within a standard-style housing that keeps the external dimensions consistent with other motors in the series. The shaft is supplied with no shaft seal, making the motor best suited for clean environments where contamination and liquid exposure are controlled. The unit is also supplied without a brake, so an external mechanical clamp or drive-generated holding torque is required when a stationary load must remain secured. Position data are supplied by a frameless size-15 resolver, and no secondary feedback device is installed.
