Product Description:

Pacific Scientific manufactures the R23GENA-R1-NS-VS-01 in the R Servomotors series. This brushless servo motor provides precise rotary actuation for automated packaging, semiconductor, and material-handling equipment. It converts command currents from a matching drive into proportional electromagnetic torque, allowing rapid acceleration, repeatable positioning, and stable velocity regulation across a wide load range. The model’s compact dimensions and resolver feedback make it suitable for embedded axes where space is limited and consistent dynamic performance is important for process accuracy.

The motor has a continuous stall torque of 0.9 Nm, which is the steady torque it can deliver without overheating when the shaft is locked. For dynamic moves, the electromagnetic circuit can rise to a peak of 2.54 Nm, accommodating short acceleration bursts before thermal limits intervene. At a rated speed of 3800 rpm, the winding produces nominal back EMF that supports efficient operation with standard Pacific Scientific drives. Rotor inertia is only 0.018 × 10⁻³ kg·m², so speed changes can be made with minimal servo lag and improved positional bandwidth. The round frame measures 2.0-inch OD, allowing the motor to fit into tight equipment envelopes without custom brackets.

Rare-earth magnets made from samarium cobalt generate the flux field, so torque density is maintained even at elevated temperatures. Position data is returned through a frameless size 15 resolver, giving analog sine-cosine signals for high-resolution drive interpolation, and there is no secondary feedback channel. Contaminant ingress is limited by a Viton shaft seal, and the laminated core measures 3 inches in stack length to provide the active iron volume for the listed torque output. The motor uses a standard housing, English face mounting, and a standard winding, and it comes without a holding brake.