Product Description:

Pacific Scientific builds the R23GENA-R1-NS-NV-00 for its R Servomotors series. The unit is a brushless servo motor intended to deliver closed-loop rotation in automated pick-and-place arms, indexing tables, and similar motion axes where compact round frames are favored. Its rare-earth magnetic circuit allows high torque from a small rotor, and the product fits systems that already use resolver feedback and English mounting patterns without external modification.

The motor can hold a load continuously at 0.9 Nm and reach a short-term output of 2.54 Nm during acceleration or brief overload events. At its rated operating point, the shaft spins at 3800 rpm, matching many medium-speed linear drives and belt transmissions. The housing diameter is only 2.0" OD, so it fits in tight equipment envelopes. The motor uses a no brake configuration, which removes the need for brake release circuitry. These characteristics, combined with an English face-mount flange, let the motor couple directly to gearheads or couplings used in North American machinery.

Dynamic behavior is helped by a rotor inertia of 0.018 ×10⁻³ kg·m², which helps limit overshoot during rapid reversals. Torque density is further supported by the use of samarium cobalt magnets, which retain flux at elevated temperatures. Position feedback comes from a frameless resolver of the transmitter type in size 15, giving analog sine-cosine signals for high-resolution conversion in digital drives, and it does not include a secondary feedback device. Axial length is held to 3 inches, which helps with integration into multi-axis clusters. The motor carries a standard winding and housing style, and because it lacks a shaft seal, it should be installed in an enclosure where contamination is controlled.