Product Description:

The R23HENA-R1-NS-NV-01 is a servo motor produced by Pacific Scientific within the R Servomotors series. In an automation cell, this motor operates as the prime mover for closed-loop axes that need quick acceleration and tight velocity control. By integrating with a matching drive, it delivers programmable torque to belts, lead screws, or direct-coupled loads, allowing machinery to execute repeatable positioning tasks without overshoot. The housing and shaft configuration follow a compact round format, which supports installation on small mechanical frames where space is limited.

With an outside diameter of 2.0-inch OD, the unit follows an English mounting interface that matches standard NEMA patterns. Continuous stall output reaches 0.9 Nm, which can be applied indefinitely without exceeding thermal limits. This allows the motor to hold loads against gravity or friction without damage. During motion, the rotor can spin to 8000 rpm, a speed supported by the high-speed winding and low rotor inertia. When rapid indexing is required, the motor can deliver a peak of 2.54 Nm for short intervals, giving extra force for acceleration. The reflected inertia is only 0.018 kg·m² ×10⁻³, so drive tuning remains responsive and settling times are minimized.

The rotor uses samarium cobalt magnets that sustain flux at elevated temperatures and support the high speed rating. Torque is developed along a stack length of 3 inches, balancing power density with axial space. The stator employs a high-speed winding design that reduces inductance so current can rise quickly under drive commands. For position feedback, a size 15 frameless resolver supplies rotor angle to the controller, and there is no secondary feedback device. The motor is supplied without a holding brake and it has no shaft seal, so any required static holding or ingress protection must be provided externally.